Across
- 4. the total amount of matter stays the same, even when two types of matter are mixed together
- 6. a combination of two or more substances
- 7. energy of motion
- 10. the form that matter is existing in
- 15. a substance or object that does not allow energy to flow through it easily
- 16. the amount of space that a substance or object takes up
- 17. the smallest, discrete portion of a substance
- 18. a push or pull on an object; forces have both strength and direction
- 19. a measure of the amount of matter in a sample
- 20. the ability of a substance to dissolve in another substance, such as sugar dissolving in water
Down
- 1. a force that acts in the opposite direction to movement
- 2. anything that takes up space and has mass
- 3. a substance or object that allows energy to flow through it easily
- 5. two or more forces that act on an object in different directions with the same size strength; result in no change in position, direction, or motion
- 8. a state of matter in which the substance expands to take both the shape and volume of its container
- 9. the ability of a material (not an object) to sink or float in water
- 11. a state of matter in which the substance has a set shape and size
- 12. a state of matter in which the substance takes the shape of the container and has an unchanged volume when poured from one container to another
- 13. forces that are acting on an object in different directions and are not the same strength; result in a change in position, direction, or motion
- 14. a pulling force; on Earth, gravity pulls objects down closer to the Earth's surface
- 17. a feature of matter that can be observed or measured to describe and differentiate between samples of matter