Outer Space

It takes the Earth ___________ to revolve around the sun.

• 1 month
• 24 hours
• 365.25 days
• 365 days

The Earth rotates on its axis completely in 24 hours, which creates day and night.

• true
• false

the Earth is the 3rd planet from the sun.

• true
• false

The elliptical path a planet travels around the sun is called:

• orbit
• route
• circle

this famous telescope helped us to learn a lot about outer space and the solar system

• Viking
• Voyager
• Hubble

What object in the solar system is considered a dwarf planet?

• Mercury
• Mars
• Pluto
• Neptune

Which planets separate the asteroid belt?

• Earth and Mars
• Mars and Jupiter
• Jupiter and Saturn
• Neptune and Uranus

When a piece of rock from outer space hits the earth's surface? 

• meteor
• meteoroid
• all of them
• meteorite

the tail of a comet always points

• toward the sun
• it varies
• away from the sun
• doesn't have a tail

The number of planets in our solar system:

• 6
• 7
• 8
• 9