7th Period Science Class

We started off our science class by playing a homework review game. This game worked by every person in our class would recite a fact we learned from the simulation on Mr. Finley's home page. This simulation was on photosynthesis and how it worked. When someone said a false fact or repeated a fact someone else said, they would be knocked out. From this, we learned that photosynthesis is not just made from light energy, but carbon dioxide and water too. We also learned that around the stoma, an opening in the plant, guard cells specializes in opening and closing the stoma for carbon dioxide to enter.

After that, we started talking about what mass is. We learned from our discussion, that mass is the value of the amount of particles. The two examples of mass are kilograms and grams. They can be used to weigh anything. We later talked about how whenever an animal (or humans) eats something, the weight of the food adds on to your weight. To prove this, we performed an experiment using a large graduated cylinder full of water on a scale to act as a person. This weighed 273.7 grams. Then we weighed the sugar and said it was 6.5 grams. We poured the sugar into the large graduated cylinder with a small graduated cylinder. The final weight of the sugar-water in the large graduated cylinder was 280.3 grams. This proved that if you eat something, the weight of the food will be added on to your weight.

Stoma: A large opening in a plant for the carbon dioxide to enter it.

Guard Cells: Cells surrounding the stoma which open and close it for carbon dioxide to enter the plant.

Mass: The value of the amount of particles.

A gram scale




After that, the bell rang and 7th period was over. That's what we did in science class.


-Jimmy Evangelos