- 1. An orbit is a ____________.
A) organ
B) island
C) street
D) path
- 2. Including Pluto (which may or may not be a true planet), how many planets are there?
A) five
B) seven
C) ten
D) nine
- 3. The solar system is made up of the ____________ and all of the objects around it.
A) Sun
B) Orbit
C) Planet
D) Moon
- 4. A planet is a large body of gas or ____________ that orbits the sun.
A) cloud
B) lunar
C) air
D) rock
- 5. Earth is the __________ planet from the sun.
A) second
B) third
C) fourth
D) fifth
- 6. The sun is a ___________ because it is a hot, glowing ball of gases.
A) star
B) satelite
C) moon
D) planet
- 7. Which planets are the first and eight planet?
A) Mercury and Neptune
B) Mars and Venus
C) Earth and Pluto
D) Saturn and Jupiter
- 8. What is a tool that is used to gather light to make faraway objects look closer?
A) telescope
B) microwave
C) microscope
D) telegraph
- 9. A curved piece of glass is called a _____________.
A) sphere
B) phone
C) ball
D) lens
- 10. Which of the following is not a part of the solar system?
A) the moon
B) the sun
C) the planets
D) the ocean
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