Explorer7g: Earth and Space

Earth's atmosphere helps support the existence of life. Which of the following functions does it not perform?

• Protects against small object collisions

• Allows gas exchange among organisms

• Maintains the same temperature

• Protects against excessive radiation

The Earth's inner core is liquid iron, while the outer core circulates the iron, creating a magnetic field.

What would be the most likely effect on Earth without a magnetic field?

• Solar radiation would make the Earth's surface too hot

• Gas exchange would decrease due to a lack of oxygen

• Heat absorption would decrease making the Earth cold

• Asteroids would constantly batter the Earth's surface

What activity do NASA astronauts perform to help prevent bone loss while in space?

• Drink extra fluids

• Wear extra layers

• Eat more calories

• Exercise regularly

What function does the insulating layer, or cooling garment, of a space suit perform?

• Communications

• Radiation shielding

• Carbon dioxide removal

• Temperature regulation

Tags

NGSS.MS-PS3-3

What spacecraft system is required for manned space flight?

• Propulsion

• Life support

• Communications

• Navigation

Which factor causes tools, equipment, and astronauts to float away if not properly tethered?

• Friction

• Microgravity

• Pressure

• Radiation

Based on the data provided, which planet could support life?

• Planet A

• Planet B

• Planet C

• Planet D

Based on the data provided, which planet could support life?

• Planet W

• Planet X

• Planet Y

• Planet Z

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

Which three options support the existence of life?

• 1,2,3

• 2,4,5

• 1,3,5

• 2,3,4

Tags

NGSS.MS-ESS2-4

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which three options support the existence of life?

• 1,2,4

• 2,4,5

• 1,3,5

• 3,4,5

Tags

NGSS.MS-ESS3-4

NGSS.MS-LS1-5

NGSS.MS-LS2-1

NGSS.MS-LS4-4