There are molecules of air at high elevations, so air pressure is less.
a. fewer
c. more
b. the same number of
d. no

Thomas his older brothers, who own a junk yard, on the weekends to earn extra money. he likes to them push broken-down cars to the back of the junk yard because it makes him feel strong. last saturday, they pushed three cars with different weights, and he noticed he used different amounts of force for each one. the cars were the following weights: white car: 2,700 kg red car: 1,500 kg blue car: 2,100 kg think about how much force is needed to move each car. which correctly lists the cars in order from the most to least amount of force needed to move them? a) white, blue, red b) blue, red, white c) red, white, blue d) white, red, blue

The solid that is formed and usually sinks to the bottom of a solution is the

It takes a lot of energy to get the temperature of water to increase and eventually boil because water has a high heat.