Day & Night
What causes day and night on Earth?
Earth's rotation on its axis
What causes the seasons on Earth?
The tilt of Earth's rotation axis and its revolution
What keeps Earth in its orbit around the Sun?
The Sun's gravity pulling on the Earth
Why is it warmer at the equator?
Sunlight is less spread out and more concentrated near the equator
200: What would happen to Earth if the Sun's gravity suddenly disappeared?
Earth would fly off in a straight line
When is Earth closest to the Sun?
January 3rd
How long does it take Earth to complete one REVOLUTION around the Sun?
365.24 days
What happens to temperature as you move from the equator to the poles?
it gets colder
300: How long does it take Earth to complete one full ROTATION?
24 hours
what is it called when Earth's rotation axis is most toward or away from the Sun?
solstice
What causes the Sun's apparent motion across the sky from east to west?
Earth's west-to-east rotation
400: Which direction does Earth rotate when viewed from above the North Pole?
Counterclockwise direction, from West to East
What happens during an equinox?
There are about 12 hours of daylight and 12 hours of darkness everywhere on Earth
Why is Earth warmer at the equator than at the poles?
Sunlight is less spread out and more concentrated near the equator
500: What is the imaginary line Earth spins around called?
the rotation axis
Does the tilt of the Earth’s rotation axis ever change?
no it does not change
Earth's curved surface causes temperatures to vary by location, ________ at the equator and _________ at the poles
warmer;colder