Read the clue. Fill in the crossword puzzle with the correct word. The crossword puzzle will turn green if you are correct! Take a picture of the completed puzzle to show your teacher.
1. A pushing force that happens as an object moves and air molecules push back against it
2. A push or a pull on an object
3. A pushing force that occurs when two objects touch. Friction slows down things that are moving
4. A force of attraction that causes a heavier object to pull objects toward its center
5. A measure of how much matter is in something
6. Anything that has mass and takes up space
7. A measure of how much gravity pulls on an object
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