Question: Look at the picture of a block of wood in a cup of water. What evidence indicates that the block of wood is less dense than the water?
Reference answer: The block of wood floats because the wood is less dense than water.

Student answer: The block of wood is the same density of the water because the cube is kind of floating.

Student answer: The water is able to hold the block of wood up.

Student answer: Well, saying less dense is like saying not as heavy. So the block of wood is probably soaked up water and is lighter.

Student answer: It is denser because it is more under water.

Student answer: The block is floating and that means that it is denser than the water.

Student answer: Because if it is less dense it would float.

Student answer: The block is floating so it is less dense.

Student answer: The block is less dense than the water.

Student answer: When something is less dense it floats when something is more dense it sinks.

Student answer: Well because the block is floating so that makes less dense.

Student answer: The water is less dense because it is floating on the water.

Student answer: The wood is floating and that means it is less dense.

Student answer: It floats.

Student answer: A: because we did a experiment and the wooden bead floated.

Student answer: My evidence is that the wooden block is floating.

Student answer: My evidence is the block of wood is floating so it is less dense than the water.

Student answer: I picked B because they have the same dense.

Student answer: The block of wood is less dense than the water is true because the block is floating.

Student answer: My evidence is that if the block was more dense then it would not float it would sink.

Student answer: Because in the picture the block of wood is floating.

Student answer: Because when something floats that mean it is less dense.

Student answer: My evidence is that less dense things float.

Student answer: It floats.

Student answer: Because the block of wood is floating so that means it is less dense.

Student answer: If block of wood was more denser it would to the bottom.

Student answer: When you put a sugar is float in the water.

Student answer: Because the block is less dense.

Student answer: A block of wood is not that heavy.

Student answer: The block float on the water because it was less dense.

Student answer: I know that wood is less dense because I see it all the time and in class.

Student answer: The block is floating.

Student answer: It is denser than the water.

Student answer: The block weighs less than the water.

Student answer: Anything that floats to the top is less dense.

Student answer: Because the block floats. The block of wood is less dense than the water because the block of wood is floating on top of the water.

Student answer: I look the picture.

Student answer: Because the block is floating.

Student answer: It floats.

Student answer: When something floats on top it always is less dense.

Student answer: The block of wood is floating.

Student answer: It is floating.

Student answer: The block of wood floats in the water.

Student answer: If the block is less dense than the water, it would float. If it is more dense than the water, it would sink.

Student answer: The block of wood floats, which gives you evidence that it is less dense than the water.

Student answer: The block of wood is floating.

Student answer: The block of wood is less dense than water because it is floating.

Student answer: The block of wood is floating.

Student answer: The block is heavier than water and it is hard to touch than water.

Student answer: My evidence is that when an object or liquid is less dense it floats to the top, or is at the top and vice versa.

Student answer: My evidence is that the water is more dense and the wood is less dense.

Student answer: I know that the block of wood is less dense than the water because when something is less dense it floats.

Student answer: It is because it is at the top.

Student answer: The wood is floating.

Student answer: The wood is floating.

Student answer: It is less dense because it is floating. If it were more dense it would sink.

Student answer: The block is floating.

Student answer: The block is less dense the water because it floated.

Student answer: The block is floating.

Student answer: The block of wood is floating.

Student answer: The wood is floating so it is less dense.

Student answer: The block is floating.

Student answer: It floats.

Student answer: It is at the top of the cup if it is less dense it will float.

Student answer: Its floating.

Student answer: The block is floating.

Student answer: The block floats.

Student answer: Wood is light.

Student answer: The block of wood is half in the water and half out.

Student answer: The block of wood is floating in the water.

Student answer: Because it floats.

Student answer: Because the wood is floating because the wood is less dense.

Student answer: The block is floating. If the block is denser it would sink.

Student answer: The wood is less dense because it floats.

Student answer: It is floating so it is got to be less dense.

Student answer: The wooden block is less dense because the surface area is where you put it.

Student answer: Because it floats.

Student answer: The block of wood floats, and if it was denser, It would sink.

Student answer: Because when the thing I less dense it will float.

Student answer: It is floating and when something it is less dense.

Student answer: When something floats it is less dense than the water.

Student answer: The block floats and if something floats in water it is less dense than water.

Student answer: Because the block of wood is floating.

Student answer: You can see that some of the wood.

Student answer: Because the block is floating and its impossible for water to sink.

Student answer: I think the block is less dense because it is floating.

Student answer: Less dense means it wants to expand. If it were denser it would want to contact and sink to a tight space at the bottom, but the wood floated and expanded as much as it could.

Student answer: Because if the block of wood was denser it would sink but it floated.

Student answer: Because the lock floats.

Student answer: The block of wood is floating.

Student answer: Because dense it would sink.

Student answer: The block of wood is floating.

Student answer: The wood block is floating.

Student answer: Because the block of wood is floating and that means it is less dense than water.

Student answer: Because the cube is one the to of the water.

Student answer: The wood is floating.

Student answer: Less dense because the block is floating on the water.

Student answer: Because the block is floating in the water.

Student answer: Because the block is floating.

Student answer: The same because it is not sinking it is not way up on top of the water. Holy part is up and half is down.