Elective Science (Grade 7)

1. What layer of the atmosphere does most weather occur in?

A) Mesosphere
B) Stratosphere
C) Thermosphere
D) Troposphere

2. What is the most common gas in the atmosphere?

A) carbon
B) Nitrogen
C) Hydrogen
D) oxygen

3. What is the middle of a hurricane called?

A) center
B) circle
C) eye
D) belly

4. What contributes to the damaging of the atmosphere?

A) A. Strong winds damage the atmosphere.
B) Burning gasoline and fossil fuels
C) too many trees
D) rain

5. Oceanic crust is thicker than continental crust.

A) False
B) True

6. Where do hurricanes form?

A) A. over warm ocean water
B) in the desert
C) in open fields
D) in mountain ranges

7. What layer of the atmosphere do you find the ozone layer?

A) Thermosphere
B) Stratosphere
C) Mesosphere
D) Troposphere

8. There are two parts to the core of the Earth Layers. What are they called?

A) A. Inner and outer
B) Fasciani and Necroto
C) C. Core and exocore
D) B. Solid and liquid

9. What is a volcano?

A) A violent shaking of the Earth that occurs when two tectonic plates bump into each other.
B) A large storm with very high speed winds.
C) An opening in the Earth's crust where magma erupts to the surface.
D) A large cloud that generates rain, hail, and lightning.

10. The heavy waves of a hurricane are called this.

A) Tornadoes
B) Thunderstorms
C) Volcanoes
D) Storm Surge

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