Name
A Planet on the Move
Objects in the Sky
Earth
Write the best word for each sentence.
Use the word bank.
Word Bank
Earth
nighttime
days
orbits
sun
daytime
year
rotates
axis
planet
hours
line
1. Earth rotates on its _________________.
2. The axis is a pretend _________________ from Earth’s North Pole to its
South Pole.
3. It takes 24 _________________ for Earth to spin all the way around on its axis.
4. We have day and night because Earth _________________ on its axis.
5. When one side of Earth faces the _________________, that side is lit.
6. It is _________________ on the lit side of Earth.
7. The side of _________________ that is not facing the sun is dark.
8. It is _________________ on the side of Earth that is not facing the sun.
9. Earth _________________ around the sun.
10. An orbit is the path a _________________ or an object takes around another
planet or object.
11. It takes about 365 1_4 _________________ for Earth to orbit all the way around
the sun.
12. One _________________ on Earth is about 365 1_4 days long.
Bonus Box: What would happen to our year if Earth’s orbit around the sun were
longer than 365 1_4 days? Write your answer.
©The Mailbox® • Teacher’s Helper ® • TEC47051 • Oct./Nov. 2010
53
Answer Key
“A Planet on the Move”
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
axis
line
hours
rotates
sun
daytime
Earth
nighttime
orbits
planet
days
year
Bonus Box: Our year would be longer.
©The Mailbox® • Teacher’s Helper ® • TEC47051 • Oct./Nov. 2010
54
Objects in the Sky