Friction

Today we discussed friction! We compared how a cotton ball, car, and a ball rolled on a smooth surface, like a table verses a rough surface, like a carpet. We made predictions and based on our observations there is less friction on smooth surfaces therefore, objects travel faster on smoother surfaces.

Can a solid change its shape?

We know that liquids and gases can change shape, but what about solids? Today we learned that even though ice is a solid it can change its shape when it changes its state. Ice went from a solid to a liquid when it melted. The 7-1 boys use great strategies in order to get their ice to melt!

Gases

In science we are talking about different states of matter. Today we learned about gases. We mixed vinegar and baking soda into a water bottle and put a balloon on top. The balloon blew up from, the gas, carbon dioxide that was created.

Space