The True Cause of Earth's Seasons

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Which hemisphere experiences winter in December?

Northern Hemisphere (correct)

Neither hemisphere

Both hemispheres

Southern Hemisphere

During which solstice is the sun farthest south?

Summer solstice in the Northern Hemisphere

Winter solstice in the Northern Hemisphere

Winter solstice in the Southern Hemisphere (correct)

Summer solstice in the Southern Hemisphere

During which equinox is the noon sun directly overhead at the equator?

Both equinoxes (correct)

Vernal (spring) equinox

Fall (autumnal) equinox

Neither equinox

Which hemisphere receives the most direct sunlight in December?

Southern Hemisphere (B) Signup and view all the answers

What marks the beginning of fall in the Northern Hemisphere?

Fall (autumnal) equinox (C) Signup and view all the answers

During which solstice is the sun farthest north?

Summer solstice in the Northern Hemisphere (C) Signup and view all the answers

What is the weather like in the Northern Hemisphere in December?

Winter (B) Signup and view all the answers

What is the weather like in the Southern Hemisphere in December?

Summer (B) Signup and view all the answers

What is the weather like in the Northern Hemisphere in March?

Spring (A) Signup and view all the answers

What is the weather like in the Southern Hemisphere in March?

Summer (A) Signup and view all the answers

Which of the following is the correct reason for the change in seasons?

Earth's axis is tilted (C) Signup and view all the answers

What would happen if the distance from the sun was the cause of seasons?

People in the Northern and Southern hemispheres would have the same seasons at the same time (C) Signup and view all the answers

What is Earth's axis?

An imaginary line that passes through Earth's center and the North and South poles (C) Signup and view all the answers

What causes day and night on Earth?

Earth's rotation (A) Signup and view all the answers

How long does it take Earth to rotate once on its axis?

24 hours (C) Signup and view all the answers

What is the motion of Earth around the sun called?

Revolution (B) Signup and view all the answers

What would happen if Earth did not rotate on its axis?

There would be no day and night (B) Signup and view all the answers

What would happen if Earth's axis was not tilted?

There would be no seasons (A) Signup and view all the answers

Why are summers generally warmer than winters?

The tilt of Earth's axis (B) Signup and view all the answers

Where on Earth is the tilt of Earth least likely to affect seasons?

The equator (A) Signup and view all the answers

Which motion causes day and night?

Rotation (C) Signup and view all the answers

Which motion causes the change in seasons?

Revolution (B) Signup and view all the answers

What is the most common calendar system today?

Gregorian calendar (D) Signup and view all the answers

Why is it generally warmer near the equator than near the poles?

Due to the spread of sunlight (D) Signup and view all the answers

What did the ancient Egyptians do to adjust their calendar?

Added an extra 5 days at the end of the year (A) Signup and view all the answers

What did the Romans do to adjust the Egyptian calendar?

Added one day every four years (A) Signup and view all the answers

What did Pope Gregory XIII do to adjust the Roman calendar?

Dropped ten days from the year (B) Signup and view all the answers

How does Earth's tilted axis affect the strength of sunlight in different places?

It causes the sunlight to be less direct near the equator (A) Signup and view all the answers

What causes summer in the Northern Hemisphere?

Earth's tilt toward the sun (A) Signup and view all the answers

What is the length of a year according to the most common calendar system?

365 days (C) Signup and view all the answers