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

Front

What is the role of the atmosphere in supporting life on Earth?

Back

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

Front

How do plants use sunlight?

Back

Plants convert the Sun's radiant energy into food through a process called photosynthesis.

Front

What is the habitable zone?

Back

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

Front

Why are planets outside the habitable zone unsuitable for life?

Back

They don't have the right temperatures for liquid water to exist.

Front

What is UV radiation and why is it important?

Back

UV radiation is a type of harmful radiation from the Sun that the Earth's atmosphere filters to protect living organisms.

Front

What happens to Earth if it moves farther from the Sun?

Back

It would get colder and water could freeze.

Front

What is photosynthesis?

Back

Photosynthesis is the process by which plants convert sunlight into chemical energy (food) using carbon dioxide and water.

Front

Why is the Sun considered a vital source of energy for Earth?

Back

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

Front

What is the significance of liquid water for life?

Back

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

Front

How does the atmosphere protect Earth from space debris?

Back

The atmosphere burns up most small meteoroids before they can reach the surface, protecting life on Earth.