# Earth Rotation And Revolution Quiz For Grade 4

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Our planet earth moves in two different ways. While revolving around the sun, the earth also rotates about its axis. These two phenomenons are responsible for so many things that we observe during a typical day. Test your grade 4 knowledge of the earth's revolution and rotational movement.

• 1.

### What phenomenon is the length of shadows throughout the day related to?

• A.

Earth Rotation

• B.

Earth's Revolution

• C.

Both

• D.

None of the above

A. Earth Rotation
Explanation
The length of shadows throughout the day is related to Earth Rotation. As the Earth rotates on its axis, the position of the sun changes, causing the angle of sunlight to vary. This change in angle affects the length of shadows cast by objects on the Earth's surface. As the sun rises higher in the sky, the shadows become shorter, and as the sun sets, the shadows become longer. Therefore, the length of shadows is directly influenced by the rotation of the Earth.

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• 2.

### What phenomenon causes day and night?

• A.

Earth's Revolution

• B.

Earth Rotation

• C.

Both

• D.

None

B. Earth Rotation
Explanation
The phenomenon that causes day and night is Earth rotation. As the Earth rotates on its axis, different parts of the planet are exposed to the Sun's light, resulting in day and night. This rotation takes approximately 24 hours to complete, leading to the cycle of day and night that we experience on Earth. Earth's revolution around the Sun is responsible for the changing seasons, but not for the daily occurrence of day and night.

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• 3.

### How many days does it take the earth to revolve around the sun?

• A.

365 days

• B.

366 days

• C.

365. 25 days

• D.

367 days

C. 365. 25 days
Explanation
The correct answer is 365.25 days. This is because it takes the Earth approximately 365.25 days to complete one revolution around the sun. However, since we cannot have a fraction of a day, we round it to 365 days in a regular year and add an extra day every four years in a leap year, making it 366 days.

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• 4.

### What phenomenon is responsible for the change in the stars visible in the night sky throughout the year?

• A.

Earth's Rotation

• B.

Both

• C.

None

• D.

Earth's Revolution

D. Earth's Revolution
Explanation
The change in the stars visible in the night sky throughout the year is due to Earth's revolution. As Earth orbits around the Sun, the position of the stars relative to our planet changes. This causes different constellations and stars to be visible at different times of the year. Earth's rotation also plays a role in the changing night sky, but the primary factor responsible for this phenomenon is Earth's revolution around the Sun.

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• 5.

### How long does it take the earth to rotate on it's axis?

• A.

24hrs

• B.

48hrs

• C.

72hrs

• D.

12hrs

A. 24hrs
Explanation
The earth takes approximately 24 hours to complete one rotation on its axis. This rotation is what causes day and night on our planet. As the earth rotates, different parts of it are exposed to the sun's light, creating the cycle of day and night. This 24-hour period is known as a solar day and is the basis for our standard measurement of time.

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• 6.

### What phenomenon is responsible for the fact that we only certain planets at certain times?

• A.

Earth's Revolution

• B.

Earth Rotation

• C.

Both

• D.

None

C. Both
Explanation
Both Earth's revolution and rotation are responsible for the phenomenon of seeing certain planets at certain times. Earth's revolution around the Sun causes the position of the planets in the night sky to change over time. This means that different planets will be visible at different times of the year. On the other hand, Earth's rotation on its axis causes the apparent movement of the planets across the sky during the night. This means that different planets will be visible at different times of the night. Therefore, both Earth's revolution and rotation play a role in determining which planets are visible at certain times.

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• 7.

### The earth's 24 time zones are related to _____

• A.

Earth Rotation

• B.

Earth's Revolution

• C.

Both

• D.

None

A. Earth Rotation
Explanation
The earth's 24 time zones are related to Earth Rotation. As the earth rotates on its axis, different parts of the earth experience daylight and darkness at different times. This rotation creates the concept of time zones, where each zone represents a specific area of the earth that experiences the same time. This allows for standardization of time across the globe, making it easier for people to coordinate activities and schedules across different regions.

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• 8.

### Seasons are a result of _____

• A.

Earth's Rotation

• B.

Earth's Revolution

• C.

None

• D.

Both

B. Earth's Revolution
Explanation
Seasons are a result of Earth's Revolution. The Earth revolves around the sun in an elliptical orbit, causing different parts of the Earth to receive varying amounts of sunlight throughout the year. This variation in sunlight leads to changes in temperature and weather patterns, resulting in the four seasons - spring, summer, autumn, and winter. As the Earth moves closer or farther away from the sun during its revolution, the angle at which sunlight hits the Earth's surface changes, causing the seasons to change. Earth's rotation also plays a role in determining day and night but is not the primary factor in causing seasons.

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• 9.

### The sea's tides are as a result of _____

• A.

Earth Rotation

• B.

Earth's Revolution

• C.

Both

• D.

None

D. None
Explanation
The sea's tides are not a result of either Earth's rotation or Earth's revolution. Tides are primarily caused by the gravitational forces exerted by the Moon and the Sun on the Earth's oceans. These forces create a bulge in the ocean on the side facing the Moon and on the opposite side, resulting in high tides. As the Earth rotates, different parts of the ocean experience these gravitational forces, causing the tides to change throughout the day. The Earth's revolution around the Sun also affects the tides, but to a lesser extent compared to the Moon's gravitational pull. Therefore, the correct answer is None.

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• 10.

### How many times does the earth rotate on its axis in one year?

• A.

24 times

• B.

48 times

• C.

365.25 times

• D.

12 times

C. 365.25 times
Explanation
The earth rotates on its axis once every 24 hours, which means it completes 365.25 rotations in one year. This is because there are 365 days in a year, and an additional 0.25 days (approximately 6 hours) account for the leap year, where an extra day is added to the calendar every four years to keep the calendar year synchronized with the solar year. Therefore, the correct answer is 365.25 times.

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• Mar 22, 2023
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• Mar 15, 2019
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