Celestial Objects Notes & Practice

"Our Solar System" Notes & Practice

By: Mrs. Casiano & Mrs. Gonzales​

Write down these notes before moving onto the next page!

Write down these notes before moving onto the next page!

Fill in the Blanks

Multiple Choice

The sun contains what percentage of helium?

• 8%

• 70%

• 92%

• 90%

Multiple Choice

True/False: The Sun is considered a star.

• True

• False

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Write down these notes before moving onto the next page!

Multiple Choice

Which of the following is NOT a Galilean moon?

• Callisto

• Titan

• Io

• Ganymede

Multiple Choice

Earth's moon is the ________ largest Solar System.

• 3rd

• 4th

• 5th

• 6th

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Multiple Choice

"Heliocentric" means what?

• Earth Centered

• Heaven centered

• Center of planets

• Sun Centered

Celestial Objects Notes & Practice

By: Mrs. Casiano & Mrs. Gonzales​

​Now flip to this handout for notes

Write down these notes before moving onto the next page!

Write down these notes before moving onto the next page!

Write down these notes before moving onto the next page!

Multiple Choice

What are comets made of?

• Metals like iron and nickel
• Gas
• Hydrogen Gas
• Ice and rock

Multiple Choice

The orbit of comets is which shape?

• Circular
• Elliptical/Oval
• Comets do not orbit the Sun

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Multiple Choice

One similarity between asteroids, comets and meteoroids is that they all:

• are made of rock
• come from the Asteroid Belt
• come from the Oort Cloud
• orbit the sun

Multiple Choice

Huge chunks of rock and metal (some measuring miles wide) are believed to be left-over pieces of planets and moons called:

• Comets
• Meteors
• Asteroids
• Meteroids

Multiple Choice

I am a rock entering a planet's atmosphere.

• meteor
• meteorite
• asteroid
• comet