When a volcano erupts, hot lava and ask come out of the crater and move down the volcano. The lava makes the earth crack because it is so hot. If the force is..

Lightning happens when warm air rises to the sky. In the sky, the tiny drops of water cool and form thunder clouds. At the top of the clouds, the water...

Eg. As soon as the shaking starts, get down on your hands and knees. Cover your head with your arm. If you are inside, crawl under a strong table..