The Earth, the Sun, and the Moon
Why do the Sun and Moon appear to move across the sky?
The rotation of Earth makes the Sun and Moon seem to move
What causes day and night?
The rotation of Earth on its axis
Twice a year on Earth, the number of hours of darkness is equal to the number of hours of sunlight. These events , where both day and night are 12 hours, are the spring and autumn equinoxes. What describes the orientation of the sun and Earth on those two days?
The tilt of Earth's axis is neither toward nor away from the sun
How long does it take Earth to spin around on its axis one time?
a day (24 hours)
What is at the center of our solar system?
a star composed of hydrogen and helium
Why does the moon appear to change during the month?
because the moon reflects sunlight as it rotates around the Earth.
The moon orbiting the Earth causes?
moon phases
What revolves around planets?
moons
Which phase of the moon would a person on Earth see when the Moon is in between the Earth and the sun?
new moon
More solar energy reaches the equatorial regions than the polar regions because the equatorial regions?
receive sun rays closest to vertical
Which location on Earth receives the most direct sunlight?
the equator
Andy lives in the Southern Hemisphere. What seasons does he most likely experience in August?
winter
About how long does it take Earth to make one complete orbit around the Sun?
1 year
How long does it take for the moon to orbit the Earth one time?
29 days
What would probably happen if it took the Earth longer to orbit the Sun that it does now?
A year would have more than 365 days
If a full moon occurs on August 1, the next full moon will occur on?
August 30th
When you are getting up to go to school in Louisiana, a student on the other side of Earth is getting ready for bed. What is the reason for this?
Earth rotates on its axis
A________________eclipse occurs when the Moon passes directly behind Earth into its umbra. This only occurs when the Sun, Moon, & Earth are aligned exactly.
Lunar
A____________eclipse happens is a type of eclipse that occurs when the Moon passes between the Sun & Earth. The Moon fully or partially blocks the Sun.
Solar
What factor makes Earth different from all the other planets in the solar system in its ability to support life?
The Earth has a breathable atmosphere
In Alaska, there are fewer hours of daylight in the winter than in the summer. Why does this difference occur?
The Northern Hemisphere is tilted away from the Sun in the winter
What causes summer in the Northern Hemisphere?
The Northern Hemisphere receives more direct sunlight during the summer
What needs to happen for a lunar eclipse to occur?
The Sun, Moon, and Earth need to be in a straight line
If the Moon did not rotate at the same rate that it revolves, what would be true?
We would be able to see all sides of the Moon
