What Makes a Planet Habitable

Why is the Goldilocks Zone important for life on a planet?

• It’s too close to the sun.

• It has the right temperature for liquid water to exist.

• It is very cold

Why is the Goldilocks Zone important?

• It gives planets more moons.

• It allows liquid water to exist.

• It makes Earth warmer.

Why is liquid water important for life on a planet?

• Living things need it to survive
  

• It is only needed for drinking.

• It makes the Earth colder.

The Goldilocks Zone is a place where a planet is…

• Not too hot and not too cold
  

• Very far from the star and very cold

• Very close to the star and very hot

Why is a stable orbit important for a planet’s habitability?

• It keeps the planet in the right place, so it doesn’t get too hot or cold.

• It makes the planet move faster.

• It makes the planet spin faster.

What makes a planet warm enough for life?

• It has sunlight and energy from its star.

• It has a lot of dust storms.

• It has many moons.

A good planet for life must have:

• only liquid water

• Water, air, right temperature, solid surface

• Rocks, fire, gas and water

How does the Earth's atmosphere protect life on Earth?

• It provides oxygen for breathing.

• It protects us from harmful solar radiation.

• Both a and b.

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

• It determines the planet's temperature.

• It affects the planet's rotation speed.

• It has no effect on life.

Why is having many plants and animals important?

• It is not important

• It makes the planet more beautiful

• They help each other survive