Question: Ms. Larson's class found the best condition to hatch brine-shrimp eggs: 2 spoons of salt in 200 milliliters of water. The class decided to hatch more eggs. Ms. Larson mixed a new solution using 2 spoons of salt in 200 milliliters of water. Later, she discovered she had used a slightly different size spoon to measure the salt. Even with this different solution, some eggs still hatched. Why did some eggs still hatch?
Reference answer: The different salt solution is within the range of tolerance for brine shrimp eggs to hatch.

Student answer: Because some eggs can handle more salt but some eggs cannot handle more salt.

Student answer: If it turns yellow.

Student answer: They hatched because they still put in 2 spoons of salt and 200 milliliters of water.

Student answer: Because not all the eggs would of just died because it is just salt, not poison.

Student answer: Because it was still viable.

Student answer: Because they can hatch with one to 3 spoons of salt.

Student answer: Because it is supposed to.

Student answer: Brine shrimp like salt.

Student answer: Some eggs still hatched because brine shrimp are very salt tolerant.

Student answer: Because it was still in the range of tolerance.

Student answer: She did not put that much salt in.

Student answer: I think some eggs still hatched because they could tolerate that much salt.

Student answer: Because some could have different tolerances for salt.

Student answer: The brine shrimp eggs still hatched because brine shrimp's eggs can hatch in an even saltier environment than 2 spoons of salt.

Student answer: Some had still was the as much as it can handle.

Student answer: Because it was in the range of tolerance.

Student answer: Because, they probably had the right amount to grow.

Student answer: Because brine shrimp can still live in a little bit more than just 2 spoons of salt.

Student answer: It probably made the process faster.

Student answer: Because there was still salt in the water.

Student answer: Because if there is salt still in the water the brine shrimp might still hatch.

Student answer: It takes I think brine shrimp at least one years to hatch or less.

Student answer: Because the water still has some salinity or salt in it.

Student answer: Because of the water and salt mixed in still.

Student answer: Because they can probably handle more salt than others.

Student answer: Because she only put 2 spoons of salt and some eggs hatched because it was not the right amount of salt.

Student answer: Slightly mean only a little more or less. Since it was only a little more or less they still hatched.

Student answer: Maybe because it is still 2 spoons of salt. Maybe it worked because it still has 2 spoons of salt but a little bit more because the spoon was probably bigger.

Student answer: Because my class did a experiment and put less spoons of salt, but something still hatched but not as much as 2 spoons.

Student answer: Some eggs still hatched because the most salt the better.

Student answer: Because, they put water and a lot of salt, so they will hatch more and more.

Student answer: Eggs hatched because the eggs from the first time hatched when Mrs. Larson added more salt in a different size spoon it was too much salt. That is why some of them did not hatch.

Student answer: Some eggs still hatched because they did more and because they did it right.

Student answer: There was probably just a salt in it.

Student answer: Because of the leftover salt. And egg inside. And she probably put a lot of salt.

Student answer: They hatched because they had a more optimum amount of salt.

Student answer: The size of the spoon of salt.

Student answer: Maybe she did not add extra salt.

Student answer: Because of the salt.

Student answer: Some eggs hatched because you do not need a certain amount of spoons of salt unless there is not too much.

Student answer: Some eggs still hatched because those eggs can tolerate that much salt and water.

Student answer: Because brine shrimp hatch in saltwater, and because she put salt in the water they will hatch.

Student answer: Because the spoon could have been smaller than the other spoon.

Student answer: Some eggs liked the environment.

Student answer: Since the 2 spoons with the new spoon was still in the range of tolerance.

Student answer: Some eggs still hatched, because of the salt.

Student answer: The eggs hatched since the water was not saturated.

Student answer: She still put salt in the cups and she did not.

Student answer: The water must have dissolved some of the salt and the amount of salt that was left over must have been enough for the brine shrimp eggs to hatch and to tolerate.

Student answer: Because it is just a little more than before.

Student answer: Because maybe she only put one spoon of salt and it was the same amount of salt of 2 spoons.

Student answer: Because even though she used a different spoon the salt amount might have changed slightly.

Student answer: Some eggs still hatched because it was still in saltwater.

Student answer: She put too much water or too much salt.

Student answer: Because it still had salt in it and brine shrimp need it.

Student answer: Because the water diluted some of the salt.

Student answer: Because the amount of salt is still in the brine shrimp's range of tolerance, one spoon of milliliters to 2 spoons of milliliters.

Student answer: Because there was probably too much salt in one place and just right in another.

Student answer: They hatched because the eggs had the right amount of water and the right amount of water.

Student answer: Because it still in the range of tolerance.

Student answer: Because it was close to the optimum condition so that way some still hatched.

Student answer: Some eggs still hatched because maybe the brine shrimp liked that amount of salt.

Student answer: Some eggs hatch because brine shrimp live in saltwater so some of them hatch because of the saltwater in it.

Student answer: Some eggs hatched because the optimum condition was 2 spoons of salt. She added 2 spoons of salt but she used a different sized spoon.

Student answer: She used more salt than she wanted to.

Student answer: Because the range of tolerance of salt is 2 spoons to 4 or 5 with that size spoons.

Student answer: As long as there is the right or more amount of salt, eggs will hatch.

Student answer: Because there was still salt in there and if there is salt then they will hatch.

Student answer: Because 2 spoons of salt was the best and just a little would not hurt the eggs. It was like our experiment, though they had different salinity levels they all hatched, except for cup 0.

Student answer: Because it was a little past the range of tolerance.

Student answer: More eggs need more salt.

Student answer: The eggs still hatched because she still put the salt but with a different amount.

Student answer: Because salty water can hatch shrimp eggs, and maybe if there is too much salt the eggs might not even hatch.

Student answer: Because there was salt and some eggs are viable.

Student answer: She had just added a little more salt which she might have not tested.

Student answer: Because some shrimp have a bigger range of tolerance.

Student answer: The water was all in the same range and the water was the same so they could of hatched.

Student answer: The eggs do have a tolerance of hatching. Not all will hatch because of the different solution in the water.

Student answer: Because the spoons were just a little bit different. One was a little bit bigger than the other. Because they have to live in saltwater or they would die.

Student answer: Because that spoon size was in the range of tolerance.

Student answer: Maybe because the salt amount was maybe in its range of tolerance of salt. So only a little bit hatched.

Student answer: Because maybe she put too much or too little.

Student answer: I think that some of the eggs will hatch and some are not.

Student answer: Because he put more salt in one so some did not hatch.

Student answer: Because even if she used a bigger size spoon she still used saltwater.

Student answer: Well probably some brine shrimp have more range of tolerance of salt.

Student answer: Because the spoons might have just been twice the size. And instead of 2 spoons it is 4 if it is double.

Student answer: Because the spoons were just a little bit different one was a little bit bigger than the other. Because they have to live in saltwater or they will die.

Student answer: The salt was all in the same range and so was the water.

Student answer: The spoon might have been the twice of the size.

Student answer: Because there is still salt in the cups.

Student answer: Not a lot of salt.

Student answer: If she put 100 milliliters of salt in the brine shrimp will hatch or not.

Student answer: As long as you do not use too much of a different size.

Student answer: Some eggs can still hatch because it can still hatch even with more salt.

Student answer: Because the spoon was smaller.

Student answer: Because the water would still have some salt in it. So the brine shrimp hatched because they are attracted to salt.

Student answer: Some of the eggs might have hatched because of the salt and brine shrimp live in salty water, saltier than the ocean.

Student answer: Because maybe she did use the right one later. How about the spoon was bigger that is why.

Student answer: Some eggs hatched because there was salt in the water. Salt helps brine shrimp hatch.