Solar System Review

How many planets are in our solar system?

• 10
• 8
• 7
• 4

Tags

NGSS.MS-ESS1-3

How are we able to see the planets from Earth?

• They create their own bright light.
• The reflect light from the moon.
• They reflect light from the sun.
• They move closer to the Earth sometimes, making them visible to us.

A natural satellite that revolves around a planet is called a _________________.

• asteroid
• comet
• meteor
• moon

Tags

NGSS.MS-ESS1-1

As planets are father away from the sun, their period of revolution _________________________.

• increases
• decreases
• stays the same
• varies

Tags

NGSS.MS-ESS1-2

Select the four INNER planets

• Mercury
• Venus
• Mars
• Earth
• Saturn

Select the four OUTER planets

• Saturn
• Uranus
• Jupiter
• Neptune
• Mercury

Why is Pluto considered a dwarf planet? Select two reasons.

• It is too small
• It is not perfectly round
• it does not move around the Sun
• it cannot clear its orbital path around the Sun

Rocky bodies that are smaller than planets, moving around the Sun, mostly found between the planets of Mars and Jupiter

• comets
• asteroids
• meteorites
• moons

Planet #1 is

• Earth
• Jupiter
• Saturn
• Mercury

Tags

NGSS.MS-ESS1-3

The planet closest to the Sun is

• Neptune
• Earth
• Mercury
• Mars