Chapter 2 Vocabulary
Across
- 3. The hotness or coldness of a substance, stated in degrees.
- 5. A rigid state of matter composed of particles in a fixed arrangement.
- 8. The change of state from a solid directly to a gas without becoming a liquid first. Opposite of deposition.
- 9. A fluid state of matter in which particles are so far apart and move so fast that they have almost no attraction for each other.
- 12. that which occupies space
- 13. The ability an object has to do work. This exists in many forms, and most can be converted from one kind to another.
- 14. The smallest neutral particle identified as a chemical element.
- 15. A pure substance made of only one kind of atom.
- 18. A measure of the amount of matter an object contains.
- 21. A change resulting from the joining or breaking of bonds between atoms to form pure substances different from the original substance.
- 22. A change occurring in the nucleus of an atom when it emits or absorbs rays or particles, or when the nucleus splits(fission) or joins with another(fusion).
- 23. A pure substance composed of two or more elements chemically combined.
- 24. The change of state from a liquid to a gas at the liquid's boiling point.
- 27. The change of state from a liquid to a gas below the boiling point of the liquid. Opposite of condensation.
- 30. The change of state from a solid to a liquid by warming. Opposite of freezing.
- 32. Matter and energy cannot be created or destroyed.
- 33. The change of state from a gas directly to a solid without becoming a liquid first.
Down
- 1. The physical form of matter described by its rigidity or fluidity, its ability to hold its shape, and how definite its volume is.
- 2. The change of state from a liquid to a solid by cooling. Opposite of melting.
- 4. A change in matter that does not alter the chemical identity.
- 6. Two or more substances mixed together but not chemically combined.
- 7. The amount of space a sample of matter occupies.
- 10. Material made of just one kind of element or compound. A mixture cannot be a pure substance.
- 11. A charged atom or group of atoms. Has an imbalance of protons and electrons.
- 16. The change of state from a gas to a liquid by cooling. Opposite of Vaporization.
- 17. A push or pull on an object.
- 19. Distinct particles composed of two or more atoms bonded together. Both elements and compounds can be composed of molecules.
- 20. Any change of state from a liquid to a gas. When the liquid is below its boiling point, it is called evaporation. When this occurs at the liquid's boiling point, it is called boiling.
- 25. The force of attraction between any two objects originating in the matter they contain.
- 26. A fluid state of matter in which particles are close together but can move freely about.
- 28. A fluid state of matter made of extremely high-temperature ionized particles.
- 29. The force of gravitational attraction for an object's mass.
- 31. Done when a force acts on a moving object in the same or opposite direction of its motion.