1. Unit 3
Get to the ROOT of it!

2. ROOTS Root Meaning Origin Greek birth, race,kind geo Earth aer pyr
air, atmosphere
pyr
birth, race,kind

3. geography—an area of study that deals with the location of countries, cities, rivers, mountains, lakes; the natural features such as rivers and mountains of a place
The astronauts gazed at the beautiful mountains, lakes, and rivers that made up Earth’s geography.

4. geode—a rock containing a cavity lined with crystals or other mineral matter
I admired the deep purple crystals that sparkled inside the geode.

5. geothermal—of, relating to, or using the natural heat produced inside the Earth
The geothermal energy from deep inside the Earth can be used to generate electricity.

6. aerial—performed in the air, performed by an airplane
We were amazed by the aerial acrobatics of the circus performers.

7. aerodynamic—of or having a shape that reduces the drag from air moving past
An airplane’s exterior must be aerodynamic in order to minimize resistance as it flies through the air.

8. aerobic—strengthening the heart and lungs by making them work hard for several minutes or more; using oxygen
Your breathing rate will increase when performing aerobic activities such as running or swimming.

9. aerate—to put air or a gas into something, such as soil or a liquid
The bubbles created by the aquarium pump helps aerate the water, which provides more oxygen for the fish.

10. pyrotechnics—a bright display of fireworks
The show ended with pyrotechnics that lit up the night sky for miles.

11. pyromania —a mental disorder that makes people have a strong desire to set fires
The fires were set by a mentally ill person suffering from pyromania.

12. pyroclastic—relating to or consisting of fragments of rock erupted by a volcano
The pyroclastic flow of hot rock and gas traveled down the sides of the erupting volcano.