Solar system

How many planets are in our solar system?

• Six

• Seven

• Eight

• Nine

What is the largest planet in our solar system?

• Earth

• Jupiter

• Mars

• Saturn

What is the solar system?

• A collection of celestial bodies bound by gravity, including the Sun, planets, moons, asteroids, comets, and meteoroids.

• A single planet that supports life.

• A group of stars that form a constellation.

• A vast empty space with no celestial bodies.

What is the Milky Way?

• A type of star

• A galaxy that contains our solar system and billions of other stars

• A planet in our solar system

• A black hole in the universe

What is the significance of the Sun's gravity in the solar system?

• The Sun's gravity keeps the planets, moons, and other objects in orbit around it, maintaining the structure of the solar system.

• The Sun's gravity causes the planets to collide with each other.

• The Sun's gravity has no effect on the solar system's structure.

• The Sun's gravity only affects the inner planets, not the outer ones.

What is a dwarf planet?

• A celestial body that orbits the Sun and clears its orbit of other debris.

• A celestial body that orbits the Sun and is similar to a planet but does not clear its orbit of other debris.

• A large asteroid that is located in the asteroid belt between Mars and Jupiter.

• A moon that orbits a planet and has a similar size to the planet.

What is gravity?

• A force that repels two bodies away from each other.

• A force that attracts two bodies towards each other, keeping planets in orbit around the Sun.

• A type of energy that can be harnessed for power.

• A phenomenon that only occurs on Earth.

What is a comet?

• A large rock that orbits the Earth

• A small icy body that releases gas and dust when close to the Sun

• A type of star that emits light

• A planet with rings around it

What is the main source of light and heat in the solar system?

• The Moon

• The Sun

• Jupiter

• Earth

What are gas giants?

• Large planets mostly made of gas, including Jupiter, Saturn, Uranus, and Neptune.

• Small rocky planets like Earth and Mars.

• Planets that are primarily composed of ice and dust.

• Planets that have a solid surface and are smaller than Earth.