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Study Guide
Objects in the Sky
Study guide passed out on Wednesday, November 2, 2016
Study guide due Thursday, November 3, 2016
Test on Monday, November 7, 2016
1.
What are the two things that cause the seasons on earth?
The earth’s tilt and the earth revolving around the sun causes the seasons to change.
2. What causes day and night?
The earth rotating or spinning on its axis causes day and night.
3.
How long does it take for the earth to revolve around the sun?
It takes about 365 days (1 year, 12 months, 52 weeks) for the earth to revolve around the sun.
4. How long does it take for the moon to revolve around the earth?
It takes about 29 days for the moon to revolve around the earth.
5.
What are the four seasons?
The four seasons are winter, spring, summer, and fall (Autumn).
6.
Does the earth revolve clockwise or counterclockwise around the sun?
The earth revolves counterclockwise around the sun.
7.
How is the earth tilted when it is summer in the Northern Hemisphere?
The Northern Hemisphere is tilted toward the sun when it is summer.
8.
What day has the most daylight?
The first day of summer has the most daylight.
9.
When is the day with the least amount of daylight?
The first day of winter has the least of amount of daylight.
10. Why does the moon appear to change shape?
The moon appears to change shape because we can only see the part of the moon that reflects
the sun as the moon revolves around the earth.
11. What is a lunar eclipse?
A lunar eclipse occurs when the earth comes directly between the sun and the full moon,
blocking the moon.
12. How long does it take for the earth to make one complete rotation?
The earth takes 24 hours (1 day) to make a complete rotation.
13. What direction does the earth rotate?
The earth rotates counterclockwise.