Q: What is the boiling and freezing point of water in celcius? Choices: - 100 degrees c and 32 degrees c - 212 degrees c and 0 degrees c - 212 degrees c and 32 degrees c - 100 degrees c and 0 degrees c A:
100 degrees c and 0 degrees c

Q: Tanning salons claim to use a "safe" form of what light, with a longer wavelength than that in sunlight? Choices: - infrared - microwave - X rays - uv (ultraviolet) A:
uv (ultraviolet)

Q: What are electrons at the outermost energy level of an atom are called? Choices: - core electrons - ions - shell electrons - valence electrons A:
valence electrons

Q: What do you call a type of mixture that has the same composition throughout? Choices: - transition - structure - transfusion - solution A:
solution