The Solar System

Which planet is the hottest?

• Venus

• Mars

• Neptune

• Mercury

The fifth planet from the Sun is...

• Earth

• Jupiter

• Uranus

• Saturn

Which component is responsible for keeping Earth's temperature stable?

• Atmosphere

• Core

• Oceans

• Winds

Which planet is NOT a gas giant

• Jupiter

• Venus

• Saturn

• Uranus

Why is Pluto not considered a planet anymore?

• It is too small

• It is too far from the Sun

• It does not have its own gravitational pull

• It is not able to clear its path of other rocks

The Sun is a star composed of hot gases

• True

• False

The Sun's (...........?) is responsible for keeping our Solar System in its position

• Nuclear reaction

• Heat

• Gravity

• Light

What type of nuclear reaction is responsible for producing the Sun's energy?

• Nuclear fission

• Nuclear fusion

How was Earth's moon formed?

• A collision of an asteroid with Earth

• An accumulation of Earth debris

• The moon was always there

• Meteors colliding with each other and forming one big rock

What is a meteor?

• A meteor is a meteoroid that reaches a planet's surface

• Any form of space rock

• Not what we call a 'shooting star'

• A meteor that burns up in the atmosphere, not reaching the surface