When light passes the

layer of diffrent densities

A light refracted

B both Choices

C a marige is created

What are three types of variables in a controlled experiments?

An electric train is going south which way is the smoke blowing

if a teacher put a penny in an overhead projector could you see Abraham Lincoln's face

When a rock is altered by extreme heat and pressure, what type of rock is the result? A. Sedimentary B. Igneous C. Metamorphic D. Clastic

Suppose you drive 1500 m due east in 2 minutes. You then turn due north and drive the same distance in the same time.

Which best compares freezing and condensation? a. Both involve changes between liquids and gases. b. Both involve changes between gases and solids. c. Both involve the release of heat. d. Both involve the absorption of heat.

Suppose an endothermic reaction has a positive change in entropy greater than the heat absorbed. What can be said about the spontaneity of this reaction?

What are two ways that convention currents in the ocean distribute the suns energy?

An astronaut on a strange planet has a mass of 80 kg and a weight of 240 n. what is the value of the acceleration due to gravity on this planet?

A 165g arrow is shot straight up into the air with a speed of 16m/s reaches a maximum height of 12.0612m. a. Find the initial kinetic energy. The acceleration of gravity is 9.8m/s^2. b. Find the potential energy at its highest position. c.