Life in space & Accommodations in space - 7th Grade Review

Front

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

Back

liquid water

Front

What is a layer of gases that surround a planet?

Back

atmosphere

Front

Why is the atmosphere important to life on Earth?

Back

It blocks the Sun's dangerous radiation and traps heat, making Earth a comfortable temperature.

Front

True or False: Without solar energy, people would not have any plants to eat.

Back

True

Front

Why is it important for a planet to be in the habitable zone for life to exist there?

Back

The habitable zone is where the temperature is just right for life.

Front

What is the definition of the habitable zone?

Back

The region around a star where conditions are suitable for liquid water to exist on a planet's surface.

Front

What role does solar energy play in supporting life on Earth?

Back

Solar energy is essential for photosynthesis, which allows plants to grow and produce oxygen.

Front

What is the primary gas in Earth's atmosphere that supports life?

Back

Oxygen.

Front

How does the atmosphere protect life on Earth?

Back

It filters harmful solar radiation and maintains a stable climate.

Front

What is the significance of liquid water for life?

Back

Liquid water is essential for biochemical reactions and is a solvent for nutrients.