9th grade biology
My name is Madison Johnson. I am in the 9th grade. I am in Mrs. Logan’s biology class. I am doing my project on “The Magic Floating Egg”. Eggs sink in normal tap water and I am testing whether or not changing the density of water will make the egg float. I was looking at projects on sciencebuddies.org and I saw that multiple people had done this. I am trying to prove that when you add a certain amount of salt to water, it will make it more dense. I took pictures of the results. This information can be useful because we can test the density of salt water versus the density of normal tap water..
Eggs sink in water. I think that …show more content…
The last jar I filled halfway. One of the full jars I filled with 12 tablespoons of sea salt and mixed it. The other full jar I left with only clear tap water. The jar that was half full I mixed in six tablespoons of sea salt. I put an egg in each jar. After I put the egg in the jar that was half full, I filled the rest with clear tap water so that the bottom half was salt water and the top half was clear tap water. I Recorded the results of each jar and took a picture of each. The jar that was only water: the egg went straight to the bottom. The jar that was all salt water: the egg floated on the top. The jar that was half salt water, half tap water: the egg submerged but stayed perfectly between the salt and tap water. If I were to do this project again in the future, I would use multiple mixtures in the water and test which substances were the most dense. Some problems could be that the amount of salt and water can vary and the size and weight of the eggs can also vary. To fix these problems, I could use the same egg for all of the mixtures. I could also do exactly the same amount of water and substances put in the