Question: Grace set up a science experiment. Here's what she wrote in her notebook. First I put eggshells into a cup and covered them with vinegar. After a while, small bubbles appeared on the surface of the eggshells. The next day there were more bubbles. In a couple of days, the eggshells were gone and the liquid was clear. I think I made a solution and a reaction. Explain why Grace thinks she made a solution.
Reference answer: A solution was created when the eggshells disappeared (dissolved) and the mixture ended up as a clear liquid.

Student answer: Because first she put eggshells then the next day she made a solution.

Student answer: Because bubble came out of the eggshell.

Student answer: I think she made a solution because the eggshells and bubbles disappeared.

Student answer: She made a solution because she said that the water was clear and that is a solution.

Student answer: I think she did a solution because it had bubbles.

Student answer: Because the eggshells were gone.

Student answer: Because it was clear.

Student answer: That is because a solution is clear that you could see through.

Student answer: She made a solution because the eggshells had disappeared and it cannot be separated.

Student answer: Because the eggshells were gone and the water was left, inside was clear that why she thinks that she made a solution.

Student answer: It was a reaction because it fizz and bubble up.

Student answer: The mixture was clear and eggshell was gone.

Student answer: Because bubbles are one sign of a gas.

Student answer: She thinks she made a solution because the eggshell dissolved in the vinegar and bubbled up and turned clear.

Student answer: Because the eggshell was gone and it was clear.

Student answer: Grace mixed 2 materials together and the solution ended up clear.

Student answer: Because she thinks that the eggshells and the water reaction and she think during the reaction the eggshell dissolved.

Student answer: She thinks she made a solution because the solute dissolved and the water is clear.

Student answer: Grace thinks she made a solution because first she put eggshells into a cup and covered them up with vinegar and then small bubbles appeared on the surface of the eggshell and a couple of days the eggshells were gone and the liquid was clear.

Student answer: Yes because she saw the gas on and the vinegar was clear.

Student answer: Because a solution is when a solute and a solvent are mixed and she did that.

Student answer: Because she put eggshells in a cup and covered them with vinegar and after a couple of days she saw that they were gone.

Student answer: The eggshells dissolved a solution is when the solvent dissolve.

Student answer: The vinegar destroyed the eggshells.

Student answer: Because he used something that can make it bubble.

Student answer: I think Grace thinks she made a solution because she mixed eggshells and vinegar together.

Student answer: Because at the end the eggshell was gone and the water was clear.

Student answer: Grace thinks she made a solution because the eggshells disappeared into the liquid.

Student answer: I think the reason why Grace thinks she made a solution is because the eggshells went away after awhile.

Student answer: I think she did make a solution because a solution is when 2 or more materials are mixed together and one disappears into the other.

Student answer: Because it turned into a clear liquid solution.

Student answer: She thinks the water was clear, which it was so it was a solution.

Student answer: Because there were more bubbles everyday.

Student answer: Because she said the water was clear. When water is clear then it is a solution.

Student answer: It is a solution because the eggshells disappeared leaving liquid clear making a solution.

Student answer: Because she mixed the vinegar with the eggshells and later bubbles started to show up then it cleared.