Across
- 3. change from one pure substance to another by the rearrangement of atoms in a chemical reaction
- 5. change in state from a gas directly to a solid caused by removing energy
- 10. two or more chemically bonded atoms
- 11. fluid state of matter in which the particles are free to move but are held close to each other; has unchanging volume but changeable shape
- 12. change of state from a solid to a liquid at the melting point that is caused by adding energy
- 15. fluid state of matter in which the particles move so fast and are so far apart as to have little interaction with each other; changeable shape and volume
- 18. change in matter that doesn't alter its chemical identity
- 19. the hotness or coldness of a substance, stated in degrees
- 21. pure substance made of only one kind of atom
- 22. fluid state of matter made of extremely high temperature ionized particles; have changeable shape and volume
- 23. ability to do work
- 24. amount of space that an object occupies
- 25. change in state from a liquid to a solid caused by removing energy
- 28. states that matter and energy cannot be created or destroyed, but can only transfer between objects or transform to a different form
- 31. change of one element into another element by changes occurring in the nucleus of the atom
Down
- 1. charged atom or group of atoms caused by a charge imbalance, which is produced by an unequal number of protons and electrons
- 2. anything that has mass and takes up space
- 3. change in state from a gas to a liquid caused by removing energy
- 4. a rigid state of matter in which the particles align in a fixed arrangement; has an unchanging shape and volume
- 6. change in state from a solid directly to a gas caused by adding energy
- 7. change in state from a liquid to a gas caused by adding energy
- 8. change of state from a liquid to a gas at the boiling point
- 9. material made of only one kind of element or compound
- 13. attractive force between any two objects based on their masses
- 14. force of gravitational attraction between an object's mass and its resident planet
- 16. they physical form of matter described by its physical characteristics and can be solid, liquid, gas, or plasma
- 17. a physical combination of two or more substances
- 20. change of state from a liquid to a gas below the boiling point but above the freezing point
- 25. push or a pull on an object
- 26. smallest neutral particle of an element that retains the characteristics of that element
- 27. done when a force acts on a moving object in the same or opposite direction of its motion or when energy is transferred from one object to another
- 29. measurement of the amount of matter in an object
- 30. pure substance formed by chemically combining two or more elements