Across
- 7. — a feature or quality that helps describe or identify something (for example, color, shape, or texture).
- 9. a natural substance used to make products (for example, wood is a raw material used to make paper).
- 10. — anything that has mass and takes up space; all solids, liquids, and gases are made of matter.
- 11. — a state of matter with a definite volume but no definite shape; it takes the shape of its container and particles can move past each other.
- 12. — a state of matter with no definite shape and no definite volume; it spreads out to fill the available space and particles move freely.
- 13. — a state of matter with a definite shape and definite volume; particles are tightly packed and only vibrate in place.
- 14. — a measurable or observable trait of a substance (such as mass, volume, density, color, or melting point).
Down
- 1. — a change that cannot easily be undone because a new substance is formed or the original is destroyed (for example, burning paper).
- 2. — the amount of space an object or substance takes up (we measure volume in units like liters or cubic centimeters).
- 3. — a change in which one or more new substances are formed with different properties (signs include color change, gas formation, temperature change, or a new solid forming).
- 4. — a change that affects the form or appearance of a substance but does not create a new substance (examples: cutting, bending, dissolving, melting).
- 5. — the form matter takes based on how its particles are arranged and move; the three common states are solid, liquid, and gas.
- 6. — a single kind of matter that has its own set of properties (like water, iron, or sugar).
- 7. — the new substance(s) that form as a result of a chemical change (also called a product in a chemical reaction).
- 8. — a change that can be undone so the original substance returns (for example, melting ice to make water and freezing it back into ice).