Assessment Solar System

Front

What is the Solar System?

Back

The Solar System is the sun and the group of objects that move around it, including planets, moons, asteroids, and comets.

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What is the Period of Rotation?

Back

The Period of Rotation is the time it takes an object to complete one rotation, or spin on its axis.

Front

What are Asteroids?

Back

Asteroids are millions of rock objects that orbit the Sun in the asteroid belt and are usually not spherical.

Front

What is the Oort Cloud?

Back

The Oort Cloud is a region at the outer edge of the Solar System where some comets originate.

Front

What is the order of the planets from closest to the sun?

Back

The order of the planets from closest to the sun is: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune.

Front

What is a Dwarf Planet?

Back

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

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What is a Comet?

Back

A Comet is a small icy body that, when passing close to the sun, heats up and begins to release gases, forming a glowing coma and tail.

Front

What is an Astronomical Unit (AU)?

Back

An Astronomical Unit (AU) is a standard unit of measurement used in astronomy, equal to the average distance from the Earth to the Sun, about 93 million miles.

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What is the difference between a Meteor and a Meteorite?

Back

A Meteor is a small rock or particle from space that burns up upon entering Earth's atmosphere, while a Meteorite is a meteor that survives its passage through the atmosphere and lands on Earth.

Front

What are the Outer Planets?

Back

The Outer Planets are the four planets farthest from the Sun: Jupiter, Saturn, Uranus, and Neptune, known for being gas giants.