Unit 6.2 Vocabulary

2. The transfer of heat through a material.
3. Having small holes that allow air or water to pass through.
4. Light that passes through
5. A representation or imitation of something, often used to help understand or explain it
6. The average of a set of numbers (1+2+3+4)/4 = 2.5
8. Limitations or restrictions that must be considered in a situation or project
10. The energy that comes from the movement of particles in a substance.
14. The process of a gas changing into a liquid
16. Light cannot pass through something and you cannot see through it
17. A system in which matter is not allowed to enter or leave
19. Variable that is changed in an experiment (only 1)
21. The transfer of thermal energy from one substance to another.
23. Variable that is affected by the change and measured in an experiment

1. A system in which matter can enter from or escape to the surroundings
2. Variable in an experiment that is purposely kept the same or constant
7. The process of one substance taking in something from another substance.
9. The energy of motion
11. A group of two or more atoms chemically bonded together
12. Light can pass through something and you can see through it
13. Standards or requirements used to judge or evaluate something.
15. A group of things or parts that work together as a whole
18. Any characteristic that is changed in an experiment
20. A measure of how hot or cold something is by measuring the kinetic energy in a substance.
22. Light that bounces off
24. The process of a liquid changing into a gas