First
This is the nearest star to Earth.
What is the sun?
The hemisphere tilted toward the sun receives more [x] hours than the hemisphere tilted away from the sun.
What are daylight hours?
To spin on its rotational axis is to
The sun has a diameter that's this times greater than Earth's.
What is 100?
This is an imaginary line on which the Earth rotates.
What is an axis?
Earth [x] around the sun.
What is revolves?
This day occurs when the Earth's rotation axis is the most toward or away from the sun.
What is solstice?
The summer solstice is [x] in the northern hemisphere.
June 20 or June 21
The winter solstice is on [x] in the northern hemisphere.
What is December 21 or December 22?
This day occurs when Earth's rotation axis is leaning along Earth's orbit, neither toward nor away from the sun.
What is an equinox?
The sun's core reaches temperatures over....
What is over 15,000,000 degrees celsius?
The surface reaches temps of....
What is 5,500 degrees celsius?
The hemisphere titled toward the sun receives more total [x] than the hemisphere tilted away from the sun.
What is sunlight?
A small part of the sun's energy reaches Earth as these two types of energy.
What are light and thermal energy?
What is March 20 or March 21?
Because the Earth's surface is [x], different parts of Earth's surface receive different amounts of the sun's energy.
What is curved?
Earth's tilt causes the sun's [x] to strike the hemispheres at different [x]
What are radiation and angles?
The Earth's orbit around the sun is due to the sun's...
What is Earth's orbit?
Fall equinox occurs on what day?
What is September 22 or September 23?
This causes the seasons to change.
What is the tilt of Earth's rotation axis combined with Earth's motion around the sun.
Earth makes one complete revolution every [x] days.
What is 365.24 days?
The [x] is not centered in the ellipse.
The ellipse between the [x] and the [x] change during the year.
When the north end of Earth's axis is tilted toward the sun, North America will experience...
What are more indirect rays and shorter days?