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EM.45b.110.1

You used several methods to separate and identify the substances in mock rocks. How did you separate the salt from the water?

The water was evaporated, leaving the salt.

By letting it sit in a dish for a day.

3irrelevant

EM.45b.113.1

You used several methods to separate and identify the substances in mock rocks. How did you separate the salt from the water?

The water was evaporated, leaving the salt.

Let the water evaporate and the salt is left behind.

0correct

EM.45b.114.1

You used several methods to separate and identify the substances in mock rocks. How did you separate the salt from the water?

The water was evaporated, leaving the salt.

The water evaporated and left salt crystals.

0correct

EM.45b.261.1

You used several methods to separate and identify the substances in mock rocks. How did you separate the salt from the water?

The water was evaporated, leaving the salt.

I saw a pinkish grayish color that was blocking the water.

3irrelevant

EM.45b.383.1

You used several methods to separate and identify the substances in mock rocks. How did you separate the salt from the water?

The water was evaporated, leaving the salt.

You have to slowly tip the vial for only the water to go.

3irrelevant

EM.45b.384.1

You used several methods to separate and identify the substances in mock rocks. How did you separate the salt from the water?

The water was evaporated, leaving the salt.

By pouring the water and salt into the thing, and letting the water evaporate.

0correct

EM.45b.385.1

You used several methods to separate and identify the substances in mock rocks. How did you separate the salt from the water?

The water was evaporated, leaving the salt.

By slowly pouring it in a tray.

3irrelevant

EM.45b.395.1

You used several methods to separate and identify the substances in mock rocks. How did you separate the salt from the water?

The water was evaporated, leaving the salt.

The water evaporated so there was only salt left.

0correct

EM.45b.402.1

You used several methods to separate and identify the substances in mock rocks. How did you separate the salt from the water?

The water was evaporated, leaving the salt.

We put the water with the salt in it and put it outside for the water to evaporate.

0correct

EM.45b.416.1

You used several methods to separate and identify the substances in mock rocks. How did you separate the salt from the water?

The water was evaporated, leaving the salt.

I separated the salt from the water because the salt are on the rocks that are on the bottom and the water is on the top.

3irrelevant

EM.45b.418.1

You used several methods to separate and identify the substances in mock rocks. How did you separate the salt from the water?

The water was evaporated, leaving the salt.

Because you can see salt in water.

3irrelevant

EM.45b.420.1

You used several methods to separate and identify the substances in mock rocks. How did you separate the salt from the water?

The water was evaporated, leaving the salt.

I let the water evaporate.

0correct

EM.45b.421.1

You used several methods to separate and identify the substances in mock rocks. How did you separate the salt from the water?

The water was evaporated, leaving the salt.

The water dried up and left the salt.

0correct

EM.45b.431.1

You used several methods to separate and identify the substances in mock rocks. How did you separate the salt from the water?

The water was evaporated, leaving the salt.

We let the water evaporate.

0correct

EM.45b.435.1

You used several methods to separate and identify the substances in mock rocks. How did you separate the salt from the water?

The water was evaporated, leaving the salt.

The water dried up.

0correct

EM.45b.438.1

You used several methods to separate and identify the substances in mock rocks. How did you separate the salt from the water?

The water was evaporated, leaving the salt.

You just get water and the smashed mock rock and put the smashed rock and water together.

3irrelevant

EM.45b.444.1

You used several methods to separate and identify the substances in mock rocks. How did you separate the salt from the water?

The water was evaporated, leaving the salt.

You put the water, a little bit, in a cup and leave it overnight.

2partially_correct_incomplete

EM.45b.454.1

You used several methods to separate and identify the substances in mock rocks. How did you separate the salt from the water?

The water was evaporated, leaving the salt.

We evaporated the salt from the water because the water evaporated and separated.

0correct

EM.45b.460.1

You used several methods to separate and identify the substances in mock rocks. How did you separate the salt from the water?

The water was evaporated, leaving the salt.

We put the water and salt in the Petri dish. The water evaporated and the salt became crystals.

0correct

EM.45b.472.1

You used several methods to separate and identify the substances in mock rocks. How did you separate the salt from the water?

The water was evaporated, leaving the salt.

We poured the salt into a Petri dish and poured the water out.

3irrelevant

EM.45b.474.1

You used several methods to separate and identify the substances in mock rocks. How did you separate the salt from the water?

The water was evaporated, leaving the salt.

By the Petri dish.

3irrelevant

EM.45b.476.1

You used several methods to separate and identify the substances in mock rocks. How did you separate the salt from the water?

The water was evaporated, leaving the salt.

By putting water in a Petri dish and letting the water evaporate.

0correct

EM.45b.477.1

You used several methods to separate and identify the substances in mock rocks. How did you separate the salt from the water?

The water was evaporated, leaving the salt.

Poured the top of the vial out.

3irrelevant

EM.45b.491.1

You used several methods to separate and identify the substances in mock rocks. How did you separate the salt from the water?

The water was evaporated, leaving the salt.

The salt dissolved and the water evaporated and the salt went to the bottom.

0correct

EM.45b.497.1

You used several methods to separate and identify the substances in mock rocks. How did you separate the salt from the water?

The water was evaporated, leaving the salt.

We put it in a evaporation dish and the water evaporated.

0correct

EM.45b.502.1

You used several methods to separate and identify the substances in mock rocks. How did you separate the salt from the water?

The water was evaporated, leaving the salt.

I put it on the evaporating dish.

0correct

EM.45b.531.1

You used several methods to separate and identify the substances in mock rocks. How did you separate the salt from the water?

The water was evaporated, leaving the salt.

By pouring the water into the salt.

3irrelevant

EM.45b.562.1

You used several methods to separate and identify the substances in mock rocks. How did you separate the salt from the water?

The water was evaporated, leaving the salt.

We poured the water out of the bottle.

3irrelevant

EM.45b.574.1

You used several methods to separate and identify the substances in mock rocks. How did you separate the salt from the water?

The water was evaporated, leaving the salt.

Letting the water evaporate.

0correct

EM.45b.576.1

You used several methods to separate and identify the substances in mock rocks. How did you separate the salt from the water?

The water was evaporated, leaving the salt.

Put it on a dish and then the water gets in the air and the salt stays.

0correct

EM.45b.578.1

You used several methods to separate and identify the substances in mock rocks. How did you separate the salt from the water?

The water was evaporated, leaving the salt.

I do not know.

4non_domain

EM.45b.591.1

You used several methods to separate and identify the substances in mock rocks. How did you separate the salt from the water?

The water was evaporated, leaving the salt.

The salt separated with the water because the salt was heavier but the water was not even heavy.

3irrelevant

EM.45b.599.1

You used several methods to separate and identify the substances in mock rocks. How did you separate the salt from the water?

The water was evaporated, leaving the salt.

We put the water in a clear cup and let it sit and the water evaporated and the salt stayed.

0correct

EM.45b.605.1

You used several methods to separate and identify the substances in mock rocks. How did you separate the salt from the water?

The water was evaporated, leaving the salt.

I put some water in a dish and let the water evaporate so the salt would stay.

0correct

EM.45b.626.1

You used several methods to separate and identify the substances in mock rocks. How did you separate the salt from the water?

The water was evaporated, leaving the salt.

Evaporate.

2partially_correct_incomplete

EM.45b.645.1

You used several methods to separate and identify the substances in mock rocks. How did you separate the salt from the water?

The water was evaporated, leaving the salt.

The crystals were salt.

3irrelevant

EM.45c.103.1

You used several methods to separate and identify the substances in mock rocks. How did you know the crystals were salt?

The crystals were square with Xs on the surface.

We used magnifying glasses and some sort of guide thing that told us what different kinds of salt looks like.

3irrelevant

EM.45c.108.1

You used several methods to separate and identify the substances in mock rocks. How did you know the crystals were salt?

The crystals were square with Xs on the surface.

You take a look through the magnifying glass.

3irrelevant

EM.45c.123.1

You used several methods to separate and identify the substances in mock rocks. How did you know the crystals were salt?

The crystals were square with Xs on the surface.

Because of the paper we looked at.

3irrelevant

EM.45c.259.1

You used several methods to separate and identify the substances in mock rocks. How did you know the crystals were salt?

The crystals were square with Xs on the surface.

We looked at a piece of paper and one of the pictures looked like the crystals.

3irrelevant

EM.45c.260.1

You used several methods to separate and identify the substances in mock rocks. How did you know the crystals were salt?

The crystals were square with Xs on the surface.

They will not shine.

3irrelevant

EM.45c.386.1

You used several methods to separate and identify the substances in mock rocks. How did you know the crystals were salt?

The crystals were square with Xs on the surface.

They were square like salt.

0correct

EM.45c.393.1

You used several methods to separate and identify the substances in mock rocks. How did you know the crystals were salt?

The crystals were square with Xs on the surface.

We knew the crystals were salt because the crystal identification chart showed us that the different kinds of salt were crystals.

3irrelevant

EM.45c.395.1

You used several methods to separate and identify the substances in mock rocks. How did you know the crystals were salt?

The crystals were square with Xs on the surface.

It said so on a paper.

3irrelevant

EM.45c.400.1

You used several methods to separate and identify the substances in mock rocks. How did you know the crystals were salt?

The crystals were square with Xs on the surface.

Because it was at it because we had a chart that could tell us that.

3irrelevant

EM.45c.402.1

You used several methods to separate and identify the substances in mock rocks. How did you know the crystals were salt?

The crystals were square with Xs on the surface.

They looked like salt.

3irrelevant

EM.45c.417.1

You used several methods to separate and identify the substances in mock rocks. How did you know the crystals were salt?

The crystals were square with Xs on the surface.

We got a sheet with different kinds of crystals. So I looked for the same picture like the crystal and it said Kosher salt.

0correct

EM.45c.436.1

You used several methods to separate and identify the substances in mock rocks. How did you know the crystals were salt?

The crystals were square with Xs on the surface.

The teacher told us.

4non_domain

EM.45c.440.1

You used several methods to separate and identify the substances in mock rocks. How did you know the crystals were salt?

The crystals were square with Xs on the surface.

Because salt is made up of little crystals.

3irrelevant

EM.45c.441.1

You used several methods to separate and identify the substances in mock rocks. How did you know the crystals were salt?

The crystals were square with Xs on the surface.

Because salt look like little pieces of a crystal.

3irrelevant

EM.45c.443.1

You used several methods to separate and identify the substances in mock rocks. How did you know the crystals were salt?

The crystals were square with Xs on the surface.

I knew because they were shaped like kosher salt.

0correct

EM.45c.456.1

You used several methods to separate and identify the substances in mock rocks. How did you know the crystals were salt?

The crystals were square with Xs on the surface.

I knew the crystals were salt by the movie we watched.

3irrelevant

EM.45c.458.1

You used several methods to separate and identify the substances in mock rocks. How did you know the crystals were salt?

The crystals were square with Xs on the surface.

Because flour does not turn into crystals.

3irrelevant

EM.45c.477.1

You used several methods to separate and identify the substances in mock rocks. How did you know the crystals were salt?

The crystals were square with Xs on the surface.

Because salt is a crystal.

3irrelevant

EM.45c.490.1

You used several methods to separate and identify the substances in mock rocks. How did you know the crystals were salt?

The crystals were square with Xs on the surface.

Because it has a X in the middle, and salt was in it.

2partially_correct_incomplete

EM.45c.491.1

You used several methods to separate and identify the substances in mock rocks. How did you know the crystals were salt?

The crystals were square with Xs on the surface.

The crystals are kosher salt and kosher salt is salt!

3irrelevant

EM.45c.494.1

You used several methods to separate and identify the substances in mock rocks. How did you know the crystals were salt?

The crystals were square with Xs on the surface.

By looking at the crystal identification sheet.

3irrelevant

EM.45c.498.1

You used several methods to separate and identify the substances in mock rocks. How did you know the crystals were salt?

The crystals were square with Xs on the surface.

Because we measured them.

3irrelevant

EM.45c.532.1

You used several methods to separate and identify the substances in mock rocks. How did you know the crystals were salt?

The crystals were square with Xs on the surface.

Because it was so shiny.

3irrelevant

EM.45c.534.1

You used several methods to separate and identify the substances in mock rocks. How did you know the crystals were salt?

The crystals were square with Xs on the surface.

They were powdery.

3irrelevant

EM.45c.536.1

You used several methods to separate and identify the substances in mock rocks. How did you know the crystals were salt?

The crystals were square with Xs on the surface.

Because there were little shining things inside and I knew it was salt.

3irrelevant

EM.45c.537.1

You used several methods to separate and identify the substances in mock rocks. How did you know the crystals were salt?

The crystals were square with Xs on the surface.

Because we learned it because it was white that is how we knew.

3irrelevant

EM.45c.540.1

You used several methods to separate and identify the substances in mock rocks. How did you know the crystals were salt?

The crystals were square with Xs on the surface.

I would know that the crystals were salt is the way how it looks.

3irrelevant

EM.45c.562.1

You used several methods to separate and identify the substances in mock rocks. How did you know the crystals were salt?

The crystals were square with Xs on the surface.

We poured the water we left it alone for 2 days and they dry up.

3irrelevant

EM.45c.564.1

You used several methods to separate and identify the substances in mock rocks. How did you know the crystals were salt?

The crystals were square with Xs on the surface.

After the water dried we noticed it was Kosher salt.

3irrelevant

EM.45c.569.1

You used several methods to separate and identify the substances in mock rocks. How did you know the crystals were salt?

The crystals were square with Xs on the surface.

By breaking the rock.

3irrelevant

EM.45c.591.1

You used several methods to separate and identify the substances in mock rocks. How did you know the crystals were salt?

The crystals were square with Xs on the surface.

Because it tastes like salt.

3irrelevant

EM.45c.592.1

You used several methods to separate and identify the substances in mock rocks. How did you know the crystals were salt?

The crystals were square with Xs on the surface.

Because crystals are a kind of salt.

3irrelevant

EM.45c.606.1

You used several methods to separate and identify the substances in mock rocks. How did you know the crystals were salt?

The crystals were square with Xs on the surface.

I looked at them really closely and they looked like crystals and diamonds.

0correct

EM.45c.611.1

You used several methods to separate and identify the substances in mock rocks. How did you know the crystals were salt?

The crystals were square with Xs on the surface.

Because we looked in the magnifying glass.

3irrelevant

EM.45c.614.1

You used several methods to separate and identify the substances in mock rocks. How did you know the crystals were salt?

The crystals were square with Xs on the surface.

I knew the crystals were salt because of the patterns and shapes.

0correct

EM.45c.647.1

You used several methods to separate and identify the substances in mock rocks. How did you know the crystals were salt?

The crystals were square with Xs on the surface.

I looked at the chart.

3irrelevant

EM.16b.183.1

Ms. Teridann, a geologist, made a chart showing the scratch-test data for 3 minerals (Mineral X, Mineral Y, and Mineral Z). She wrote "yes" if the tool scratched the mineral and wrote "no" if it did not scratch it. Topaz is a mineral that cannot be scratched by a fingernail, a penny, or a paperclip. How hard is topaz compared to minerals X, Y, and Z? Explain how you know.

Topaz would be the hardest of the 4 minerals because none of the tools could scratch topaz and at least one tool could scratch each of the other minerals.

Topaz is harder because it would be all no on the chart.

2partially_correct_incomplete

EM.16b.187.1

Ms. Teridann, a geologist, made a chart showing the scratch-test data for 3 minerals (Mineral X, Mineral Y, and Mineral Z). She wrote "yes" if the tool scratched the mineral and wrote "no" if it did not scratch it. Topaz is a mineral that cannot be scratched by a fingernail, a penny, or a paperclip. How hard is topaz compared to minerals X, Y, and Z? Explain how you know.

Topaz would be the hardest of the 4 minerals because none of the tools could scratch topaz and at least one tool could scratch each of the other minerals.

Topaz is harder. Because topaz is the hardest birthstone.

2partially_correct_incomplete

EM.16b.189.1

Ms. Teridann, a geologist, made a chart showing the scratch-test data for 3 minerals (Mineral X, Mineral Y, and Mineral Z). She wrote "yes" if the tool scratched the mineral and wrote "no" if it did not scratch it. Topaz is a mineral that cannot be scratched by a fingernail, a penny, or a paperclip. How hard is topaz compared to minerals X, Y, and Z? Explain how you know.

Topaz would be the hardest of the 4 minerals because none of the tools could scratch topaz and at least one tool could scratch each of the other minerals.

Topaz is hard because you cannot scratch it with penny, fingernail or a paperclip.

0correct

EM.16b.279.1

Ms. Teridann, a geologist, made a chart showing the scratch-test data for 3 minerals (Mineral X, Mineral Y, and Mineral Z). She wrote "yes" if the tool scratched the mineral and wrote "no" if it did not scratch it. Topaz is a mineral that cannot be scratched by a fingernail, a penny, or a paperclip. How hard is topaz compared to minerals X, Y, and Z? Explain how you know.

Topaz would be the hardest of the 4 minerals because none of the tools could scratch topaz and at least one tool could scratch each of the other minerals.

M to Z is harder than mineral X and Y.

3irrelevant

EM.16b.284.1

Ms. Teridann, a geologist, made a chart showing the scratch-test data for 3 minerals (Mineral X, Mineral Y, and Mineral Z). She wrote "yes" if the tool scratched the mineral and wrote "no" if it did not scratch it. Topaz is a mineral that cannot be scratched by a fingernail, a penny, or a paperclip. How hard is topaz compared to minerals X, Y, and Z? Explain how you know.

Topaz would be the hardest of the 4 minerals because none of the tools could scratch topaz and at least one tool could scratch each of the other minerals.

It is harder than X Y Z because we read about it this morning.

2partially_correct_incomplete

EM.16b.286.1

Ms. Teridann, a geologist, made a chart showing the scratch-test data for 3 minerals (Mineral X, Mineral Y, and Mineral Z). She wrote "yes" if the tool scratched the mineral and wrote "no" if it did not scratch it. Topaz is a mineral that cannot be scratched by a fingernail, a penny, or a paperclip. How hard is topaz compared to minerals X, Y, and Z? Explain how you know.

Topaz would be the hardest of the 4 minerals because none of the tools could scratch topaz and at least one tool could scratch each of the other minerals.

It is harder than them.

2partially_correct_incomplete

EM.16b.288.1

Ms. Teridann, a geologist, made a chart showing the scratch-test data for 3 minerals (Mineral X, Mineral Y, and Mineral Z). She wrote "yes" if the tool scratched the mineral and wrote "no" if it did not scratch it. Topaz is a mineral that cannot be scratched by a fingernail, a penny, or a paperclip. How hard is topaz compared to minerals X, Y, and Z? Explain how you know.

Topaz would be the hardest of the 4 minerals because none of the tools could scratch topaz and at least one tool could scratch each of the other minerals.

It is harder than minerals X, Y, and Z because it cannot be scratched by either one.

0correct

EM.16b.321.1

Ms. Teridann, a geologist, made a chart showing the scratch-test data for 3 minerals (Mineral X, Mineral Y, and Mineral Z). She wrote "yes" if the tool scratched the mineral and wrote "no" if it did not scratch it. Topaz is a mineral that cannot be scratched by a fingernail, a penny, or a paperclip. How hard is topaz compared to minerals X, Y, and Z? Explain how you know.

Topaz would be the hardest of the 4 minerals because none of the tools could scratch topaz and at least one tool could scratch each of the other minerals.

A topaz is compared to Z because it cannot be scratched with 2 thirds things. Y is all the opposite of topaz. X cannot be scratched with one third of a topaz cannot be scratched.

1contradictory

EM.16b.322.1

Ms. Teridann, a geologist, made a chart showing the scratch-test data for 3 minerals (Mineral X, Mineral Y, and Mineral Z). She wrote "yes" if the tool scratched the mineral and wrote "no" if it did not scratch it. Topaz is a mineral that cannot be scratched by a fingernail, a penny, or a paperclip. How hard is topaz compared to minerals X, Y, and Z? Explain how you know.

Topaz would be the hardest of the 4 minerals because none of the tools could scratch topaz and at least one tool could scratch each of the other minerals.

The Topaz is the first hardest mineral out of the 3 on the chart.

2partially_correct_incomplete

EM.16b.387.1

Ms. Teridann, a geologist, made a chart showing the scratch-test data for 3 minerals (Mineral X, Mineral Y, and Mineral Z). She wrote "yes" if the tool scratched the mineral and wrote "no" if it did not scratch it. Topaz is a mineral that cannot be scratched by a fingernail, a penny, or a paperclip. How hard is topaz compared to minerals X, Y, and Z? Explain how you know.

Topaz would be the hardest of the 4 minerals because none of the tools could scratch topaz and at least one tool could scratch each of the other minerals.

Topaz is harder than all of them. It is just barely harder than Z, way harder than Y, and pretty harder than X.

2partially_correct_incomplete

EM.16b.388.1

Ms. Teridann, a geologist, made a chart showing the scratch-test data for 3 minerals (Mineral X, Mineral Y, and Mineral Z). She wrote "yes" if the tool scratched the mineral and wrote "no" if it did not scratch it. Topaz is a mineral that cannot be scratched by a fingernail, a penny, or a paperclip. How hard is topaz compared to minerals X, Y, and Z? Explain how you know.

Topaz would be the hardest of the 4 minerals because none of the tools could scratch topaz and at least one tool could scratch each of the other minerals.

Topaz is harder than X, Y, and Z because Topaz cannot be scratched by a fingernail, a penny, or a paperclip so it is the hardest.

0correct

EM.16b.398.1

Ms. Teridann, a geologist, made a chart showing the scratch-test data for 3 minerals (Mineral X, Mineral Y, and Mineral Z). She wrote "yes" if the tool scratched the mineral and wrote "no" if it did not scratch it. Topaz is a mineral that cannot be scratched by a fingernail, a penny, or a paperclip. How hard is topaz compared to minerals X, Y, and Z? Explain how you know.

Topaz would be the hardest of the 4 minerals because none of the tools could scratch topaz and at least one tool could scratch each of the other minerals.

Tied with mineral Y because they are both yes, yes, and yes.

1contradictory

EM.16b.403.1

Ms. Teridann, a geologist, made a chart showing the scratch-test data for 3 minerals (Mineral X, Mineral Y, and Mineral Z). She wrote "yes" if the tool scratched the mineral and wrote "no" if it did not scratch it. Topaz is a mineral that cannot be scratched by a fingernail, a penny, or a paperclip. How hard is topaz compared to minerals X, Y, and Z? Explain how you know.

Topaz would be the hardest of the 4 minerals because none of the tools could scratch topaz and at least one tool could scratch each of the other minerals.

Topaz would be all no's compared the minerals X, Y, and Z because topaz is one of the scratch free minerals.

3irrelevant

EM.16b.419.1

Ms. Teridann, a geologist, made a chart showing the scratch-test data for 3 minerals (Mineral X, Mineral Y, and Mineral Z). She wrote "yes" if the tool scratched the mineral and wrote "no" if it did not scratch it. Topaz is a mineral that cannot be scratched by a fingernail, a penny, or a paperclip. How hard is topaz compared to minerals X, Y, and Z? Explain how you know.

Topaz would be the hardest of the 4 minerals because none of the tools could scratch topaz and at least one tool could scratch each of the other minerals.

Topaz is harder than minerals X, Y, and Z because Topaz cannot be scratched by a fingernail, penny or a paperclip. So it is harder.

0correct

EM.16b.431.1

Ms. Teridann, a geologist, made a chart showing the scratch-test data for 3 minerals (Mineral X, Mineral Y, and Mineral Z). She wrote "yes" if the tool scratched the mineral and wrote "no" if it did not scratch it. Topaz is a mineral that cannot be scratched by a fingernail, a penny, or a paperclip. How hard is topaz compared to minerals X, Y, and Z? Explain how you know.

Topaz would be the hardest of the 4 minerals because none of the tools could scratch topaz and at least one tool could scratch each of the other minerals.

It is a soft rock Z, I think it is the same as Y because they can both be scratched by everything. It is little bit hard to X.

1contradictory

EM.16b.493.1

Ms. Teridann, a geologist, made a chart showing the scratch-test data for 3 minerals (Mineral X, Mineral Y, and Mineral Z). She wrote "yes" if the tool scratched the mineral and wrote "no" if it did not scratch it. Topaz is a mineral that cannot be scratched by a fingernail, a penny, or a paperclip. How hard is topaz compared to minerals X, Y, and Z? Explain how you know.

Topaz would be the hardest of the 4 minerals because none of the tools could scratch topaz and at least one tool could scratch each of the other minerals.

Topaz is harder than X, Y, and Z because it cannot be scratched by a fingernail, a laser, or a paperclip.

0correct

EM.16b.494.1

Ms. Teridann, a geologist, made a chart showing the scratch-test data for 3 minerals (Mineral X, Mineral Y, and Mineral Z). She wrote "yes" if the tool scratched the mineral and wrote "no" if it did not scratch it. Topaz is a mineral that cannot be scratched by a fingernail, a penny, or a paperclip. How hard is topaz compared to minerals X, Y, and Z? Explain how you know.

Topaz would be the hardest of the 4 minerals because none of the tools could scratch topaz and at least one tool could scratch each of the other minerals.

Topaz is the hardest out of all minerals because it did not get scratched by any tool.

0correct

EM.16b.495.1

Ms. Teridann, a geologist, made a chart showing the scratch-test data for 3 minerals (Mineral X, Mineral Y, and Mineral Z). She wrote "yes" if the tool scratched the mineral and wrote "no" if it did not scratch it. Topaz is a mineral that cannot be scratched by a fingernail, a penny, or a paperclip. How hard is topaz compared to minerals X, Y, and Z? Explain how you know.

Topaz would be the hardest of the 4 minerals because none of the tools could scratch topaz and at least one tool could scratch each of the other minerals.

Like steel if you rub them and if it does not scratch.

3irrelevant

EM.16b.497.1

Ms. Teridann, a geologist, made a chart showing the scratch-test data for 3 minerals (Mineral X, Mineral Y, and Mineral Z). She wrote "yes" if the tool scratched the mineral and wrote "no" if it did not scratch it. Topaz is a mineral that cannot be scratched by a fingernail, a penny, or a paperclip. How hard is topaz compared to minerals X, Y, and Z? Explain how you know.

Topaz would be the hardest of the 4 minerals because none of the tools could scratch topaz and at least one tool could scratch each of the other minerals.

It is harder than all of the other minerals because it cannot get scratched by none of the scratching materials and all the other minerals can get scratched at least one time.

0correct

EM.16b.508.1

Ms. Teridann, a geologist, made a chart showing the scratch-test data for 3 minerals (Mineral X, Mineral Y, and Mineral Z). She wrote "yes" if the tool scratched the mineral and wrote "no" if it did not scratch it. Topaz is a mineral that cannot be scratched by a fingernail, a penny, or a paperclip. How hard is topaz compared to minerals X, Y, and Z? Explain how you know.

Topaz would be the hardest of the 4 minerals because none of the tools could scratch topaz and at least one tool could scratch each of the other minerals.

It is harder than X, Y, Z. I know it is harder than X, Y, and Z because nothing can scratch it.

0correct

EM.16b.521.1

Ms. Teridann, a geologist, made a chart showing the scratch-test data for 3 minerals (Mineral X, Mineral Y, and Mineral Z). She wrote "yes" if the tool scratched the mineral and wrote "no" if it did not scratch it. Topaz is a mineral that cannot be scratched by a fingernail, a penny, or a paperclip. How hard is topaz compared to minerals X, Y, and Z? Explain how you know.

Topaz would be the hardest of the 4 minerals because none of the tools could scratch topaz and at least one tool could scratch each of the other minerals.

Minerals X has 2 of them in a paperclip and penny. And the Y, Z and the minerals Y is the hardest in it.

1contradictory

EM.16b.527.1

Ms. Teridann, a geologist, made a chart showing the scratch-test data for 3 minerals (Mineral X, Mineral Y, and Mineral Z). She wrote "yes" if the tool scratched the mineral and wrote "no" if it did not scratch it. Topaz is a mineral that cannot be scratched by a fingernail, a penny, or a paperclip. How hard is topaz compared to minerals X, Y, and Z? Explain how you know.

Topaz would be the hardest of the 4 minerals because none of the tools could scratch topaz and at least one tool could scratch each of the other minerals.

It is the hardest because it cannot be scratched by any of them and the others can be scratched with at least one of the minerals.

0correct

EM.16b.528.1

Ms. Teridann, a geologist, made a chart showing the scratch-test data for 3 minerals (Mineral X, Mineral Y, and Mineral Z). She wrote "yes" if the tool scratched the mineral and wrote "no" if it did not scratch it. Topaz is a mineral that cannot be scratched by a fingernail, a penny, or a paperclip. How hard is topaz compared to minerals X, Y, and Z? Explain how you know.

Topaz would be the hardest of the 4 minerals because none of the tools could scratch topaz and at least one tool could scratch each of the other minerals.

Mineral Z can scratch topaz because mineral Z cannot be scratched by a penny or a fingernail but it can get scratched by a paperclip.

1contradictory

EM.16b.532.1

Ms. Teridann, a geologist, made a chart showing the scratch-test data for 3 minerals (Mineral X, Mineral Y, and Mineral Z). She wrote "yes" if the tool scratched the mineral and wrote "no" if it did not scratch it. Topaz is a mineral that cannot be scratched by a fingernail, a penny, or a paperclip. How hard is topaz compared to minerals X, Y, and Z? Explain how you know.

Topaz would be the hardest of the 4 minerals because none of the tools could scratch topaz and at least one tool could scratch each of the other minerals.

It is so strong that minerals X, Y, Z cannot break it.

2partially_correct_incomplete

EM.16b.538.1

Ms. Teridann, a geologist, made a chart showing the scratch-test data for 3 minerals (Mineral X, Mineral Y, and Mineral Z). She wrote "yes" if the tool scratched the mineral and wrote "no" if it did not scratch it. Topaz is a mineral that cannot be scratched by a fingernail, a penny, or a paperclip. How hard is topaz compared to minerals X, Y, and Z? Explain how you know.

Topaz would be the hardest of the 4 minerals because none of the tools could scratch topaz and at least one tool could scratch each of the other minerals.

I know because when you break a rock that is when you know it is hard or not hard.

3irrelevant

EM.16b.540.1

Ms. Teridann, a geologist, made a chart showing the scratch-test data for 3 minerals (Mineral X, Mineral Y, and Mineral Z). She wrote "yes" if the tool scratched the mineral and wrote "no" if it did not scratch it. Topaz is a mineral that cannot be scratched by a fingernail, a penny, or a paperclip. How hard is topaz compared to minerals X, Y, and Z? Explain how you know.

Topaz would be the hardest of the 4 minerals because none of the tools could scratch topaz and at least one tool could scratch each of the other minerals.

How it is compared to X, Y, and Z is that the finger and the penny cannot scratch mineral X and Z.

2partially_correct_incomplete

EM.16b.573.1

Ms. Teridann, a geologist, made a chart showing the scratch-test data for 3 minerals (Mineral X, Mineral Y, and Mineral Z). She wrote "yes" if the tool scratched the mineral and wrote "no" if it did not scratch it. Topaz is a mineral that cannot be scratched by a fingernail, a penny, or a paperclip. How hard is topaz compared to minerals X, Y, and Z? Explain how you know.

Topaz would be the hardest of the 4 minerals because none of the tools could scratch topaz and at least one tool could scratch each of the other minerals.

I know it is Z because it has one yes and 2 no's.

1contradictory

EM.16b.576.1

Ms. Teridann, a geologist, made a chart showing the scratch-test data for 3 minerals (Mineral X, Mineral Y, and Mineral Z). She wrote "yes" if the tool scratched the mineral and wrote "no" if it did not scratch it. Topaz is a mineral that cannot be scratched by a fingernail, a penny, or a paperclip. How hard is topaz compared to minerals X, Y, and Z? Explain how you know.

Topaz would be the hardest of the 4 minerals because none of the tools could scratch topaz and at least one tool could scratch each of the other minerals.

Mineral Z cannot be scratched by penny, fingernail, and paperclip. Topaz cannot be scratched by anything.

1contradictory