Friday, May 6, 2011

Science in the Classroom — What Does Your Saliva Look Like?

Jessica, a teacher with a master's in science and a specialty in fish, comes to Hillwood each Friday to teach us about science.

Our usual science focus with Jessica is genetics. Some of the experiments we did include extracting genes from a strawberry, building a model of DNA, and looking at my saliva under a microscope. My saliva had a big black hairy dot crawling under microscope lens

Recently, we looked at zebra fish eggs under a microscope. The fish eggs had big heads and tails. One of the eggs looked like a leach and the other one looked like a ball with three large dots. With zebra fish, you can easily track the genetic changes in each generation. You can do this by just observing the fish.

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