Science Content: This is a short video explaining how earthquakes occur and why they are important to the earth's sustained existence. It also shows actual footage of earthquakes occurring and the way that people respond. Very informative in regards to how it happens and what it looks like.
Rock Cycle [More important than you think! When picking rocks for hardscapes you want to use Metamorphic rock in most cases, especially with water (so it doesn't leach anything into the water) but it is also important to know what type of rockscape your c