Arre there other planets

How many other planets are there in our solar system besides Earth? (0:36–0:41)

• Nine

• Seven

• Eight

• Six

What is the name of the scientists who study space? (1:00–1:01)

• Biologists

• Geologists

• Astronomers

• Historians

What is the outer layer of Earth made of? (1:45–1:53)

• Gas

• Water

• Rock and dirt

• Ice

What do living things need to survive on a planet? (1:33–2:20)

• Rings and moons

• Ground, air, and the right temperature

• Stars and asteroids

• Clouds and storms

What is the atmosphere? (2:20–2:31)

• The ground we walk on

• A layer of air and clouds around a planet

• A group of stars in the sky

• The solid core of the Earth

What happens if a planet is too close to its star? (2:46–2:53)

• It becomes very cold

• It becomes boiling hot

• It has no moons

• It has rings

What do scientists call the perfect distance from a star for life? (3:18–3:28)

• The Solar Zone

• The Life Zone

• The Goldilocks Zone

• The Earth Zone

Which planet is in the Goldilocks zone and bigger than Earth? (3:44–3:49)

• Jupiter

• Saturn

• Kepler-452b

• Mars

Why can’t humans visit Kepler-452b right now? (4:04–4:15)

• It is too small

• It has no air

• It is too far away

• It has too many moons