Matter

On Monday, we reviewed the properties of a liquid. Then, we learned about density by making a density tower! We poured corn syrup, dish soap, water (dyed purple), vegetable oil and rubbing alcohol into a tall container. After the layers settled, we noticed that the liquids divided into sections. We learned that some liquids are denser or heavier than others and some are close to the same and will mix. Some liquids have more air in them and are therefore lighter. 

After, we did a "dancing raisins" experiment. First, everyone predicted whether the raisins would float or sink. Then, we put the raisins in the sprite. We noticed that the raisins danced from the bottom to the top! We saw that the gas bubbles rose to the surface. At first the raisins sunk, but then the tiny bubbles of gas attached themselves to the raisin and made it rise to the top. At the top the bubbles break into air and then the raisin sinks again. 

On St. Patricks day, we baked cupcakes. We learned that when we are baking we use a mixture of solids and liquids. When everything is mixed together it turns into a liquid; then after it is baked it turns into a solid! We reviewed that temperature can affect some states of matter! After, we decorated our cupcakes green! We also made ice cream floats! A float has all 3 states of matter. The pop is the liquid, the ice cream is the solid and the carbon is the gas! We decided to make a "toast" to science...as it seems to be everyones favourite subject! 

We also read "Bartholomew and the Oobleck." Can something be a liquid and a solid? We made oobleck to find out the answer to this question. The oobleck behaved like a solid and a liquid depending on how much pressure was applied. You can form a solid ball in your hand with it, but as soon as your release it it flows between your fingers and turns into a liquid! 

On Wednesday, we had a final quiz to end the unit! Everyone got 100%!