Question: Q: Scientists think that stars and galaxies make up only a small part of the matter in the universe. what is the rest of the matter called? Choices: - typical matter - light matter - cold matter - dark matter A:
Answer: dark matter

Question: Q: What kind of energy is released when the thermochemical reaction of a campfire converts wood to carbon dioxide and water? Choices: - ultraviolet - light - smoke - heat A:
Answer: heat

Question: Q: What property of certain states of matter can be given in units of millimeters of mercury? Choices: - solvency - gravity - velocity - pressure A:
Answer:
pressure