LEAP Earth-Sun-Moon System Patterns 3 — Questions and Answers
Question 1: In Louisiana, the Sun appears highest in the sky at noon during which season?
- Winter
- Spring
- Fall
- Summer (Correct answer)
Correct answer: Summer
During summer in the Northern Hemisphere, Earth's axial tilt causes the Sun to reach its highest point in the sky at noon.
Question 2: What causes a solar eclipse?
- Earth passes between the Sun and Moon
- The Moon passes between Earth and the Sun, blocking sunlight (Correct answer)
- Earth's shadow falls on the Moon
- The Sun temporarily dims its light output
Correct answer: The Moon passes between Earth and the Sun, blocking sunlight
A solar eclipse occurs when the Moon moves between Earth and the Sun, casting a shadow on Earth's surface.
Question 3: Why do we always see the same side of the Moon from Earth?
- The Moon does not rotate at all
- The Moon rotates once per orbit around Earth (synchronous rotation) (Correct answer)
- The Moon rotates too fast for us to notice
- Earth's gravity prevents the Moon from rotating
Correct answer: The Moon rotates once per orbit around Earth (synchronous rotation)
The Moon's rotation period equals its orbital period—about 27 days—so the same side always faces Earth.
Question 4: A crescent moon is visible just after sunset in the western sky. What phase is the Moon in?
- Waning crescent
- Third quarter
- Waxing crescent (Correct answer)
- New moon
Correct answer: Waxing crescent
A waxing crescent appears shortly after a new moon and is visible in the western sky just after sunset.
Question 5: Earth completes one full rotation on its axis every 24 hours. What observable pattern does this directly cause?
- The seasons changing
- The phases of the Moon
- The daily cycle of day and night (Correct answer)
- The annual position of constellations
Correct answer: The daily cycle of day and night
Earth's 24-hour rotation on its axis causes the cycle of day and night as different parts of Earth face toward or away from the Sun.
Question 6: During the Northern Hemisphere's summer solstice, what is true about the North Pole?
- The North Pole experiences 24 hours of darkness
- The North Pole experiences 24 hours of daylight (Correct answer)
- Day and night are equal at the North Pole
- The North Pole is closest to the Sun
Correct answer: The North Pole experiences 24 hours of daylight
At the summer solstice, Earth's North Pole is tilted toward the Sun, resulting in continuous daylight for the entire polar region.
Question 7: Which phase of the Moon comes directly after a full moon?
- Waxing gibbous
- Waning gibbous (Correct answer)
- First quarter
- New moon
Correct answer: Waning gibbous
After a full moon, the visible lit portion begins to shrink, entering the waning gibbous phase.
LEAP Earth-Sun-Moon System Patterns 3
In Louisiana, the Sun appears highest in the sky at noon during which season?