1.
How many planets revolve around the sun?
Correct Answer
B. 8
Explanation
There are eight recognized planets that revolve around the Sun in our solar system. These planets, listed in order of their distance from the Sun, are:
Mercury
Venus
Earth
Mars
Jupiter
Saturn
Uranus
Neptune
2.
Who was the first man to walk on the moon?
Correct Answer
B. Neil Armstrong
Explanation
Neil Armstrong was the first man to walk on the moon. He achieved this historic feat on July 20, 1969, as part of NASA's Apollo 11 mission. Armstrong took a small step onto the lunar surface and famously said, "That's one small step for man, one giant leap for mankind." His iconic moonwalk marked a significant milestone in human space exploration and secured his place in history as the first person to set foot on the moon.
3.
What does NASA stand for?
Correct Answer
D. National Aeronautics and Space Administration
Explanation
NASA stands for National Aeronautics and Space Administration. This is the correct answer because NASA is a government agency in the United States that is responsible for the nation's civilian space program and for aeronautics and aerospace research. The acronym accurately reflects the organization's focus on both aeronautics (the science of flight within the Earth's atmosphere) and space exploration.
4.
Is the sun a star or a moon?
Correct Answer
A. A Star
Explanation
The sun is a star because it is a massive, glowing ball of gas that produces its own light and heat through nuclear fusion. It is the closest star to Earth and is the center of our solar system. Moons, on the other hand, are natural satellites that orbit planets, and the moon specifically refers to Earth's natural satellite.
5.
What planet is approximately the same size as the Earth?
Correct Answer
A. Venus
Explanation
Venus is the correct answer because it is the only planet in the given options that is approximately the same size as Earth. Venus has a diameter of about 12,104 kilometers, which is only slightly smaller than Earth's diameter of about 12,742 kilometers. Mercury is smaller than Earth, while Pluto is much smaller and is no longer classified as a planet.
6.
True or FalseMercury has no air
Correct Answer
A. True
Explanation
Mercury has no air because it has a very thin atmosphere consisting mostly of trace amounts of helium and hydrogen. The planet's proximity to the Sun means that the high temperatures cause any gases to escape into space. The lack of air on Mercury is due to its small size and weak gravity, which cannot hold onto gases as effectively as larger planets like Earth.
7.
Which planet is called the red planet?
Correct Answer
B. Mars
Explanation
Mars is known as the red planet because of its reddish appearance. This is due to the iron oxide (rust) on its surface, which gives it a distinctive reddish color. Additionally, Mars has a thin atmosphere that scatters sunlight in a way that makes the planet appear red when viewed from Earth.
8.
Which planets among the following have rings?
Correct Answer
A. Jupiter and Uranus
Explanation
Four planets within our solar system are distinguished by the presence of rings encircling them. These planets, namely Jupiter, Saturn, Uranus, and Neptune, showcase the unique celestial feature of ring systems, contributing to the diverse and captivating characteristics found within our cosmic neighborhood.
9.
What galaxy shares its name with a chocolate bar?
Correct Answer
D. Milky Way
Explanation
The correct answer is Milky Way. The Milky Way galaxy shares its name with a popular chocolate bar. This chocolate bar is named after the galaxy due to its smooth and creamy texture, which is said to resemble the vastness and beauty of the Milky Way galaxy. The name association adds a sense of wonder and allure to the chocolate bar.
10.
What is the planet called?
Correct Answer
C. Neptune
Explanation
Neptune is the correct answer because it is one of the planets in our solar system. It is the eighth planet from the sun and is known for its beautiful blue color. Neptune is a gas giant and has a thick atmosphere made up mostly of hydrogen and helium. It is also known for its strong winds and storms, including the famous Great Dark Spot.
11.
What is this planet called?
Correct Answer
A. Jupiter
Explanation
Jupiter is the correct answer because it is a planet in our solar system. It is the largest planet and is known for its distinct bands of clouds and the Great Red Spot, a giant storm. Jupiter is named after the Roman king of the gods and is the fifth planet from the Sun. It is easily visible from Earth and has been studied extensively by scientists.
12.
What is the name of this satellite?
Correct Answer
B. Moon
Explanation
The correct answer is Moon because the question is asking for the name of the satellite, and the Moon is Earth's natural satellite. Mars, Pluto, and Venus are not satellites of Earth, so they are not the correct answers.