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

Front

What is the habitable zone?

Back

The habitable zone is the region around a star where conditions are just right for liquid water to exist, which is essential for life as we know it.

Front

Which planet is known to be in the habitable zone?

Back

Earth is the only planet in our solar system known to be in the habitable zone.

Front

What gases make up Earth's atmosphere?

Back

Earth's atmosphere is composed of approximately 79% Nitrogen, 20% Oxygen, and 1% other gases like carbon dioxide and water vapor.

Front

Why is the Sun important for life on Earth?

Back

The Sun provides the energy necessary for photosynthesis, which is the foundation of the food chain and essential for life.

Front

What is an atmosphere?

Back

An atmosphere is a layer of gases that surrounds a planet, providing essential conditions for life.

Front

What is the significance of temperature in the habitable zone?

Back

The temperature in the habitable zone is just right for liquid water to exist, which is crucial for life.

Front

What role does water play in supporting life?

Back

Water is essential for all known forms of life; it serves as a solvent, a means of transport for nutrients, and is involved in metabolic processes.

Front

What is the primary gas in Earth's atmosphere?

Back

Nitrogen is the primary gas in Earth's atmosphere, making up about 79% of it.

Front

How does the distance from a star affect a planet's ability to support life?

Back

The distance from a star affects a planet's temperature and the presence of liquid water, which are critical for supporting life.

Front

What is the greenhouse effect?

Back

The greenhouse effect is the process by which certain gases in a planet's atmosphere trap heat, keeping the planet warm enough to support life.