According to the kinetic theory of matter, all matter is made of molecules which continuously and randomly move. however, the amount of particle motion is dependent upon the state or phase of the matter. which of the following objects would experience the least amount of motion?
a. steam
b. soda
c. star
d. book

What must be true for natural selection to heppen

Sally and sue were investigating the topic of friction in science. they used a small car and a ramp as seen in the picture to test what they were learning. they knew that they slipped easily on waxed floors but not on carpet, so they decided to change the material on the surface of the ramp to see what happened. they planned to use glass, carpet, aluminum foil, and sandpaper and run the car down the ramp over each surface. what would be the best research question to guide the girls' experiment? a) does the amount of surface area affect the friction on the moving car? b) will the car travel fastest on the glass surface? c) how does the angle of the ramp affect the speed of the car? d)do rougher surfaces tend to create more friction than smooth surfaces?

When plants use sunlight to make food, the energy of sunlight is