Habitable Earth

Front

In order for life as we know it to exist, a planet must have _____________.

Back

Liquid water is essential for life as it supports biological processes.

Tags

NGSS.MS-ESS2-4

Front

Which helps protect the earth from radiation?

Back

The atmosphere protects the Earth from harmful radiation from space.

Front

All of the following are ways that atmosphere makes the existence of life on Earth possible except:

Back

Maintains a constant temperature is not a function of the atmosphere.

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

Front

Why do astronauts need to routinely exercise while in space?

Back

Zero gravity weakens muscles and bones, so exercise is necessary to maintain strength.

Front

To offset the effects of the low-gravity space environment on the body, astronauts must __________.

Back

Exercise regularly to keep their muscles and bones strong.

Front

What is the primary component of Earth's atmosphere?

Back

Nitrogen, which makes up about 78% of the atmosphere.

Front

What role does liquid water play in supporting life?

Back

Liquid water is a solvent for biochemical reactions and is essential for all known forms of life.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

NGSS.MS-LS2-3

Front

How does the atmosphere contribute to temperature regulation on Earth?

Back

The atmosphere traps heat through the greenhouse effect, maintaining a stable temperature.

Tags

NGSS.MS-ESS2-6

Front

What is the significance of gas exchange between plants and animals?

Back

Gas exchange allows plants to take in carbon dioxide and release oxygen, which is vital for animal life.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Front

What happens to astronauts' bodies in a zero-gravity environment?

Back

Muscle atrophy and bone density loss occur due to the lack of gravitational force.