OpenSci Ed Earth in Space

Which statement is true?

• Earth rotates around the sun.
• The sun revolves around Earth.
• The Earth is larger than the sun.
• Earth revolves around the sun.

When it is summer in the southern hemisphere, it is

• winter in the northern hemisphere
• spring in the northern hemisphere
• summer in the northern hemisphere
• fall in the northern hemisphere

What does the Earth's rotation around it's axis cause?

• seasons 
• people
• seasons and
  day & night
• day and night

The equator is an imaginary line that divides the earth into...

• southern and northern hemisphere
• western and eastern hemisphere
• artic and antartic circle
• different countries

How long does it take the earth to orbit the sun?

• 24 hours
• 365 1/4 days
• 365 days
• 60 minutes

How long does it take the earth to rotate once?

• 24 hours
• 365 days
• 60 minutes
• 48 hours

If it is Summer in the Northern Hemisphere, what season is it in the Southern Hemisphere?

• Winter
• Spring
• Summer
• Fall

During an ___________, the length of nighttime and daytime are about the same because neither hemisphere is tilted toward the sun.

• equinox
• solstice
• earthquake
• solar eclipse

Which of the following events occurs once every 24 hours?

• The moon rotates on its axis.
• Earth rotates on its axis.
• The moon revolves around the Earth.
• Earth revolves around the sun.

How much sunlight does the North Pole receive on December 21st?

• 24 hours
• 12 hours
• 8 hours
• 0 hours