1.
The earth spins on an angled tilt called a(n)
Correct Answer
A. Axis
Explanation
The earth spins on an angled tilt called an axis. The axis is an imaginary line that runs through the center of the earth from the North Pole to the South Pole. This tilt is responsible for the changing seasons and the length of daylight hours throughout the year.
2.
Rotation of the earth is what causes_______________
Correct Answer
B. Day and night
Explanation
The rotation of the earth causes day and night. As the earth rotates on its axis, different parts of the planet are exposed to the sun's light, creating daylight, while the opposite side experiences darkness, creating night. This rotation takes approximately 24 hours to complete, resulting in the cycle of day and night that we experience on Earth.
3.
Rotation of the earth takes___________
Correct Answer
A. One day
Explanation
The rotation of the earth takes one day. This is because the earth rotates on its axis, completing one full rotation in approximately 24 hours. This rotation causes the cycle of day and night, with half of the earth facing the sun experiencing daylight while the other half experiences darkness.
4.
Revolution of the earth takes_________________
Correct Answer
B. One year
Explanation
The revolution of the earth takes one year because it orbits around the sun in an elliptical path. This journey around the sun takes approximately 365.25 days to complete, resulting in one full year. This revolution is responsible for the changing of seasons and the different lengths of daylight throughout the year.
5.
The earth's revolution is called an orbit, and we orbit around________
Correct Answer
B. The sun
Explanation
The earth's revolution is called an orbit because it revolves around the sun. This is known as heliocentric orbit, where the earth moves in an elliptical path around the sun due to the gravitational force between them. The sun is at the center of our solar system, and all the planets, including Earth, orbit around it.
6.
Which of the followings happens in one year’s time?
Correct Answer
B. Earth makes one complete revolution around the sun.
Explanation
In one year's time, Earth makes one complete revolution around the sun. This is known as a "year" and it takes approximately 365.25 days for Earth to complete this orbit. This revolution around the sun is responsible for the changing seasons and the cycle of daylight and darkness.
7.
Which is caused by the rotation of Earth?
Correct Answer
B. Days and nights
Explanation
The rotation of the Earth causes the phenomenon of days and nights. As the Earth rotates on its axis, different parts of the planet are exposed to the Sun's light, creating daytime, while the opposite side experiences darkness, creating nighttime. This rotation takes approximately 24 hours to complete, resulting in the cycle of day and night that we experience on Earth.
8.
Because of the Earth's revolution around the sun, we have different__________
Correct Answer
C. Seasons
Explanation
Due to the Earth's revolution around the sun, we experience different seasons. As the Earth orbits the sun, its axis is tilted, causing different parts of the planet to receive varying amounts of sunlight throughout the year. This tilt, along with the Earth's rotation, leads to changes in temperature, weather patterns, and the length of daylight hours. These changes create the four distinct seasons: spring, summer, autumn, and winter.
9.
During which season are the days the longest?
Correct Answer
A. Summer
Explanation
During the summer season, the days are the longest. This is because the Earth's axis is tilted towards the Sun during this time, causing the Sun to be higher in the sky and resulting in longer daylight hours. In contrast, during the winter season, the Earth's axis is tilted away from the Sun, causing the Sun to be lower in the sky and resulting in shorter daylight hours. Spring and fall are transitional seasons where the length of the days gradually changes towards either summer or winter.
10.
During which seasons are the days the shortest?
Correct Answer
B. Winter
Explanation
In winter, the days are the shortest because the Earth's axis is tilted away from the sun. This means that the sun's rays are spread out over a larger area, resulting in less direct sunlight and shorter days. Additionally, the angle at which the sunlight hits the Earth's surface is lower, leading to less daylight hours. As a result, winter experiences shorter days compared to other seasons.
11.
Which of the following best describes why the Earth has four seasons?
A. The sun is closer to the Earth during summer and farther away during winter
B. The sun shines directly onto the equator all year long
C. The 23.5° tilt of the Earth is the primary reason for the seasons
Correct Answer
C. The tilt of the Earth is the primary reason for the seasons
Explanation
The Earth has four seasons primarily because of its 23.5° tilt. This tilt causes the angle at which the sun's rays hit the Earth to change throughout the year. When a hemisphere is tilted towards the sun, it receives more direct sunlight and experiences summer. Conversely, when a hemisphere is tilted away from the sun, it receives less direct sunlight and experiences winter. This variation in sunlight intensity and duration leads to the different seasons experienced on Earth.
12.
How long does it take for the Earth to go once around its axis?
Correct Answer
B. 24 hours
Explanation
The Earth takes 24 hours to complete one rotation around its axis. This period of time is known as a day. As the Earth rotates, different parts of the planet experience daylight and darkness, resulting in day and night. This rotation is responsible for the regular cycle of day and night that we observe on Earth.
13.
Which of the following correctly describes the movement of Earth, Moon and sun?
Correct Answer
A. Moon revolves around Earth, Earth revolves around sun
Explanation
The correct answer is that the Moon revolves around Earth and Earth revolves around the sun. This is known as the heliocentric model, which is the widely accepted scientific understanding of the movement of celestial bodies in our solar system. The Moon orbits around Earth due to Earth's gravitational pull, while Earth orbits around the sun. This movement of Earth around the sun is responsible for the changing seasons and the length of a year.
14.
Why do we see different phases of the Moon here on Earth?
Correct Answer
C. The point of view of the moon changes and Earth sees different amounts of lit and unlit moon.
Explanation
The correct answer is that the point of view of the moon changes and Earth sees different amounts of lit and unlit moon. This is because the moon orbits around the Earth, and as it moves, the angle between the sun, moon, and Earth changes. This changing angle causes different portions of the moon to be illuminated by the sun, resulting in the different phases of the moon that we see from Earth.