Hypothesis #6: If an empty plastic bottle is filled with hot water, emplied quickly and immersed in cold water, then the plastic bottle will be crushed.

Agraduated cylinder contains 63.0 ml of water. a piece of gold, which has a density of 19.3 g/ cm3, is added to the water and the volume goes up to 64.5 ml. calculate the mass in grams of the gold that was added to the water. explain how you got your answer.

Which of the following list the divisions of the geologic time scale in order from longest to shortest

Four friends, a, b, c, and d are standing varying distances away from a speaker which is producing sound waves.