Social Studies

4. mail A system for sending messages between computers.
8. A sudden shaking of the ground caused by the movement of plates deep underground.
9. Also known as trash or garbage, it is anything we throw away because we no longer need or want it.
10. Taking materials that would otherwise be thrown away and turning them into new products.
11. A huge ocean wave caused by earthquakes, volcanoes, or landslides.

1. A natural resource extracted from the earth, used to power cars, make plastic, and turn into electricity.
2. The weather of a particular area over many years.
3. A mountain that can erupt with lava, ash, and gases from deep inside the Earth.
4. Required to power our homes, cities, and electronics; can come from air, sun, water, and oil, which can cause pollution.
5. calls Using video technology to talk to someone who isn’t usually in the same location as you.
6. The day-to-day condition of the atmosphere.
7. A powerful storm that forms over water and has strong winds and heavy rain.