Rapid Changes in Earth's Surface

A landslide is a slow process because overtime it will rain and then it will quickly fall down.

"Landslide." [Online image] 3 February 2015. <http://www.sciencekids.co.nz/pictures/space/mercury.html>.

An earthquake is a fast process it can happen quickly and the ground will start to shake and crack.

"Earthquake." [Online image] 3 February 2015. <http://www.sciencekids.co.nz/pictures/space/mercury.html>.

A volcano is a slow process because over time it will start to bubble up and when it's done it will quickly explode.

"Volcano." [Online image] 3 February 2015. <http://www.sciencekids.co.nz/pictures/space/mercury.html>.

A flood is a fast process because when it's raining hard and quick it starts to flood.