Spaceship Earth- Mystery 1 & 2

1. True or False? When you watch a sunset, the Sun is really moving across the sky?

• True
• False

Tags

NGSS.MS-ESS1-1

2. From Sunday evening to Friday evening, how many complete spins does the Earth make?

• A. 1
• B. 2
• C. 4
• D. 5

3. If the Earth were to spin TWICE (2) as fast as it does now, how many hours would be in one day (one complete spin)?

• A. 12
• B. 24
• C. 48
• D. 72

4. If the Earth were to spin HALF as fast as it does now, how many hours would be in one day (one complete spin)?

• A. 12
• B. 48
• C. 24
• D. 72

5. From what direction does the sun rise?

• A. North
• B. East
• C. South
• D. West

6. From what direction does the sun set?

• A. North
• B. East
• C. South
• D. West

7. In ancient times, why would a cloudy day make it hard to know what time it was?

• A. Ancient civilizations did not know how to make clocks for cloudy days.
• B. The sun was needed in order to create a shadow clock or sundial.
• C. Ancient civilizations did not have shadow clocks.
• D. Clouds caused the numbers on the clock to shine so brightly that they could not be seen.

8. Would a shadow clock still work if the Earth stopped spinning?

• A. Yes, since the sun did not stop shining.
• B. No, since the shadow created by the sun would not change positions.

Tags

NGSS.MS-ESS1-1

9. At what time of day is your shadow the shortest?

• Noon
• 4pm
• Sunrise

10. Why did the Ancient Egyptians use 12 segments in order to divide the day?

• A. They used a base 10 model for counting based on the number of fingers on a human's hands.
• B. They used a base 12 model for counting based on the segments of a human's hand.