Density

2. A push or a pull that can change an object’s motion or shape.
3. A state of matter where particles are close together but can slide past each other, allowing it to flow and take the shape of its container.
4. The amount of space that an object or substance takes up.
9. A state of matter where particles are packed tightly together and vibrate in place, giving it a fixed shape and volume.
10. The unit used to measure force, including weight; named after scientist Isaac Newton.
11. How much mass is packed into a certain amount of space; calculated using mass ÷ volume.
12. The invisible force that pulls objects toward each other, especially toward the center of Earth.

1. A scientific model that explains that all matter is made up of tiny particles that are always moving and have spaces between them.
5. The amount of matter in an object; often measured in grams or kilograms.
6. A state of matter where particles are far apart and move freely, giving it no fixed shape or volume.
7. Anything that has mass and takes up space.
8. The force of gravity pulling on an object’s mass.