Temperature measures a. the internal energy of an object
b. how much heat is in a substance
c. the average kinetic energy of atoms and molecules in a substance
d. the average speed of atoms and molecules in a substance

Two people each hold the end of a rope and create waves by moving their arms up and down. this wave is best classified as a transverse wave because a) both the rope particles and the wave are moving in the same direction. b) the wave is moving up and down as the particles of the rope move horizontally. c) the wave is moving horizontally as the particles of the rope move up and down. eliminate d) the wave is moving in a parallel direction with the motion of the person's arms.

Match these items with their examples. 1. liquid solution milk 2. solid solution aluminum foil 3. compound soda 4. colloid steel 5. element salt

Which of the following subject areas contains questions that can be answered by science? alchemy ethics forensics politics