Solar and Earth Systems

How many known planets are in our solar system?

• 4

• 7

• 8

• 9

What dwarf planet was downgraded from planetary status in 2006?

• Mercury

• Uranus

• Neptune

• Pluto

What is the age of the Sun?

• Nearly 5 billion years old.

• Nearly 500 million years old.

• Nearly 1 billion years old.

• Nearly 10 billion years old.

Which of these planets is the farthest from the sun? (Hint: Pluto is considered a dwarf planet)

• Mercury

• Earth

• Neptune

• Jupiter

What is in our Solar System?

• Planets

• Moons

• Sun

• All of the above

What is a planet?

• a group of stars that forms a pattern in the sky
• a large ball of hot gases that gives off heat and light
• a large ball or rock or gas that moves around the sun
• a toy aliens play with

Which thing is a huge ball of hot gases that gives off heat and light?

• a moon
• a planet
• a star
• a spaceship

Which planet is the largest?

• Earth
• Jupiter
• Neptune
• the Sun

All planets are the same size.

• True
• False

Which is the largest object in our solar system?

• Sun
• Jupiter
• Earth
• Pluto