Studied by 80 people
The Solar System
A collection of 8 planets and their moons in orbit around the sun
Galaxies
A group of stars and planets all clustered together.
Summer solstice
Day with the most daylight hours
Winter solstice
Day with fewest daylight hours
What causes the seasons?
The earth's tilted axis in relation to the Sun?
What causes the tides?
The moon's gravitational pull on the earth.
How long does it take for the earth to complete one rotation around it's axis?
24 hours.
How long does it take the moon to complete one revolution around the earth?
27 days
How long does it take the earth to complete one revolution around the Sun?
365 1/4 days
Which famous scientist was imprisoned for arguing that the planets revolved around the Sun?
Gallileo
How many stars are there in our Solar system?
More than 1 billion
What are the 8 phases of the moon?
New moon, crescent moon, quarter moon, Gibbous moon, full moon, Gibbous moon, quarter moon, crescent moon
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Flashcard (40)