🚀 Launch Check
What is the force that keeps planets, moons, and satellites in orbit?
Gravity
How long does it take the Moon to complete one orbit around Earth?
29.5 Days
Location Sun Angle Temperature A 30° 5°C
B 60° 20°C
Which location receives the most sunlight?
Location B
A solar eclipse occurs when:
The Moon moves between the Sun and Earth
If Earth stopped rotating, what would happen to the day–night cycle?
One side of Earth would always face the Sun while the other side would remain dark.
The Earth rotates once approximately every:
24 Hours
What causes the phases of the Moon?
Different amounts of the Moon’s sunlit side visible
Month Sun Angle AvgTemp Jan 30° -1°C
Jul 75° 27°C
What pattern exists between sun angle and temperature?
Higher angle = higher temperature
A lunar eclipse occurs when:
Earth blocks sunlight from reaching the Moon
Why does the Northern Hemisphere experience summer when it is tilted toward the Sun?
Sunlight is more direct and concentrated, providing more energy.
Which movement of Earth causes the seasons?
Earth's tilted axis as it rotates the Earth
Which phase occurs when the Moon is between Earth and the Sun?
New Moon
Day Length Avg Temp
9 hours 5°C
15 hours 25°C
Longer days provide more solar energy
Solar eclipses only happen during which Moon phase?
New Moon
Astronauts observe the Moon from space and see half illuminated. What phase would observers on Earth most likely see?
Quarter Moon
Earth’s axis is tilted approximately:
23.5
During which phase is the entire sunlit half of the Moon visible from Earth?
Full Moon
City Sun Angle Temperature City A 70° 28°C City B 35° 12°C
Why is City A warmer?
Sunlight is more concentrated
Lunar eclipses only happen during which Moon phase?
Full Moon
Scientists observe that temperatures increase when the Sun is higher in the sky.
Sunlight is more concentrated
Why do we experience day and night?
Earth rotates on its axis
Why do we always see the same side of the Moon?
The Moon rotates once during each orbit around Earth
Which factor most affects how much solar energy an area receives?
Sun angle
Why don’t eclipses occur every month?
The Moon’s orbit is tilted
Two locations receive the same amount of sunlight, but one has a higher Sun angle. Which location will likely be warmer and why?
The location with the higher Sun angle because solar energy is more concentrated on a smaller area.