Across
- 3. describes a substance that has visibly different parts
- 7. the basic particle from which all elements are made; the smallest particle of an element that has the properties of that element
- 9. a change that alters the form or appearance of a material but does not make the material into another substance
- 11. a pure substance that cannot be broken down into other substances by chemical or physical means
- 12. the measurement of how much mass of a substance is contained in a given volume
- 13. a subatomic particle that has a positive charge; found in the nucleus of an atom
- 17. anything that has mass and takes up space
- 18. two or more substances that are physically combined together in the same place but their atoms are not chemically bonded; can be physically separated; do not have a set ratio
- 19. a substance made of two or more elements chemically combined in a specific ratio, or proportion
- 21. Matter is never created nor destroyed in any chemical or physical change
Down
- 1. a change in which one or more substances combine or break apart to form a new substance
- 2. a subatomic particle that has no charge; found in the nucleus of an atom
- 4. a single kind of matter that is pure and has a specific set of properties
- 5. the amount of space that matter occupies
- 6. a characteristic of a substance that describes its ability to change into different substances
- 8. a characteristic of a pure substance that can be observed without changing it into another substance
- 10. a subatomic particle that has a negative charge; found outside the nucleus
- 14. describes a substance that all looks the same
- 15. a measure of the force of gravity acting on an object; SI unit: Newton (N)
- 16. a neutral group of two or more atoms help together by covalent bonds
- 20. a measure of how much matter is in an object; SI unit: kilogram (kg)