What happens to light as it moves at an angle into a medium that has a higher index of refraction?
O. A. It speeds up, and the angle decreases.
B. It speeds up, and the angle increases.
c. It slows down, and the angle decreases.
O D. It slows down, and the angle increases.

As you move from right to left on the periodic table the atomic radius fill in the blank

Earth's axis of rotation is tilted at an angle of 23.5 degrees. what is one change you would see on earth if its axis was not tilted?

Which of the following is an example of physical change not a chemical change? a) a log gives off heat and light as it burns. b) a tree stores energy from the sun in its fruit. c) a penny lost in the grass slowly changes color. d) a water pipe freezes and cracks on a cold night.