1.
Earth's trip around the Sun takes 24 hours.
Correct Answer
B. False
Explanation
The statement is false. Earth's trip around the Sun actually takes approximately 365.25 days, which is equal to one year. The rotation of the Earth on its axis takes 24 hours to complete, resulting in day and night. However, this rotation is not related to Earth's orbit around the Sun.
2.
The Earth's seasons are caused by the tilt in its axis as it revolves around the Sun.
Correct Answer
A. True
Explanation
The Earth's seasons are caused by the tilt in its axis as it revolves around the Sun. This tilt causes different parts of the Earth to receive varying amounts of sunlight throughout the year, which results in the changing seasons. When one hemisphere is tilted towards the Sun, it experiences summer, while the other hemisphere is tilted away and experiences winter. As the Earth continues its orbit, the tilt gradually changes, leading to spring and autumn. This phenomenon is consistent with the true statement that the Earth's seasons are caused by the tilt in its axis as it revolves around the Sun.
3.
Gravity on the Moon is weak.
Correct Answer
A. True
Explanation
Gravity on the Moon is weak because the Moon has less mass compared to Earth. The force of gravity is directly proportional to the mass of an object, so the Moon's weaker gravity is a result of its smaller mass. This means that objects on the Moon weigh less than they do on Earth and that the Moon's gravitational pull is not as strong as Earth's. Therefore, the statement "Gravity on the Moon is weak" is true.
4.
Moonlight comes directly from the Moon.
Correct Answer
B. False
Explanation
Moonlight does not come directly from the Moon. Moonlight is actually sunlight that is reflected off the surface of the Moon and then reaches the Earth. The Moon does not emit its own light but rather reflects the light from the Sun. Therefore, the statement that moonlight comes directly from the Moon is false.
5.
Day and night on Earth is caused by
Correct Answer
B. Earth's rotation.
Explanation
Day and night on Earth is caused by Earth's rotation. As the Earth rotates on its axis, different parts of the planet are exposed to the Sun's light, creating day and night. The rotation takes approximately 24 hours, resulting in the cycle of day and night that we experience. The Moon's movement, the Sun's rotation, and Earth's orbit do not directly cause day and night, although they do have other effects on our planet.
6.
The inner planets are ALL
Correct Answer
A. Made of solid, rock-like materials.
Explanation
The correct answer is "made of solid, rock-like materials." This is because the inner planets, also known as terrestrial planets, are primarily composed of dense, rocky materials such as silicates and metals. These planets, including Mercury, Venus, Earth, and Mars, have solid surfaces and lack the thick atmospheres and gas giants found in the outer planets.
7.
What is the name of the phase of the Moon when it is between the Sun and Earth?
Correct Answer
D. New
Explanation
The phase of the Moon when it is between the Sun and Earth is called the "New" Moon. During this phase, the side of the Moon facing Earth is not illuminated by the Sun, making it appear dark or completely invisible from our perspective. This occurs because the Sun's light is not directly reaching the side of the Moon that faces us.
8.
Which two planets are the largest in the solar system?
Correct Answer(s)
A. Jupiter
D. Saturn
Explanation
Jupiter and Saturn are the largest planets in the solar system. Jupiter is the largest planet overall, with a diameter of about 86,881 miles. Saturn is the second largest planet, with a diameter of about 72,367 miles. Both planets are gas giants and have a much larger size compared to the other planets in the solar system.
9.
Correct Answer
D. Gibbous Moon
10.
What is a comet?
Correct Answer
B. Chunks of ice that moves in a long, narrow orbit
Explanation
A comet is composed of chunks of ice that move in a long, narrow orbit. Comets are celestial bodies that consist of a nucleus made up of ice, dust, and other organic compounds. As a comet approaches the sun, the heat causes the ice to vaporize, creating a glowing coma (a cloud of gas and dust) around the nucleus, and often a tail that points away from the sun. Comets are known for their distinctive appearance and are often referred to as "dirty snowballs" due to their icy composition. They originate from the outer regions of the solar system and periodically enter the inner solar system.
11.
To revolve means to move around an object.
Correct Answer
A. True
Explanation
The statement accurately defines the meaning of the word "revolve" as moving around an object. Therefore, the correct answer is True.