7th grade summer review

Match it! Select the correct answer from the pull down...Good luck!

A knife or a chisel is an example of what type of simple machine?

6. 7. Jeannie wanted to find out if cold water was more dense than warm water. She added red food coloring to a beaker of warm water and then used an eyedropper to add the warm red

Children are trying to get supplies up into their tree house. The simple machine which would be most useful would be a

How can you change matter from one state to another?

5. You are boiling water on your stove next to a window. You notice water droplets on the inside of the window. This is an example of what kind of scientific investigation?

Which of the following is an example of a physical change?

Natalie is trying to explain the solar system to her younger brothers. What three objects should she choose to best represent the sun, earth, and the moon?

Rollerblades are an example of what type of simple machine