Which of the following is the best example of a proper hypothesis? a. water will flow faster through tightly packed soil than through loosely packed soil. b. i think there is no effect on hearing if you listen to loud music for only three hours a day. c. if different types of leaves are exposed to low temperatures, then they will change colors. d. grapes taste better than apples because grapes are sweeter.

The diagrams show objects’ gravitational pull toward each other. which statement describes the relationship between diagram x and y? gravity attracts only larger objects toward one another. gravity attracts larger objects only if they are close to one another. if the masses of the objects increase, then the force between them also increases. if distance between the objects increases, then the amount of force also increases.

Using the first volume and temperature reading on the table as v1 and t1, solve for the unknown values in the table below. remember to use the rules of significant figures when entering your numeric response.

The atoms of a solid aluminum can are close together, vibrating in a rigid structure. if the can is warmed up on a hot plate, what happens to the atoms?