1.
The path a planet takes around the sun is:
Correct Answer
C. Orbit
Explanation
The correct answer is "orbit". The path a planet takes around the sun is called an orbit. This is the result of the planet's revolution around the sun, which is its motion around the sun in a curved path. Rotation, on the other hand, refers to the planet's spinning motion on its own axis. Therefore, "orbit" is the most appropriate term to describe the path a planet takes around the sun.
2.
One complete trip around the sun is a planet's:
Correct Answer
B. Revolution
Explanation
A complete trip around the sun is referred to as a planet's revolution. This term describes the movement of a planet as it orbits around the sun. Rotation, on the other hand, refers to the planet spinning on its axis. Orbit is a broader term that encompasses both rotation and revolution, as it refers to the path that a planet takes around the sun. However, in this context, the specific term used to describe a complete trip around the sun is revolution.
3.
One turn on a planet's axis (that makes day and night) is its:
Correct Answer
A. Rotation
Explanation
Rotation refers to the spinning motion of a planet on its axis. This rotation causes day and night as different parts of the planet are exposed to the Sun's light. Revolution, on the other hand, refers to the planet's movement around the Sun. Orbit refers to the path that a planet follows as it revolves around the Sun. Therefore, the correct answer is rotation.
4.
Our closest star is:
Correct Answer
A. The sun
Explanation
The correct answer is the sun. The sun is our closest star, located at the center of our solar system. It provides us with heat, light, and energy, and is essential for life on Earth. The moon is not a star but a natural satellite that orbits the Earth, and Brad Pitt is a famous actor who is not related to stars in this context.
5.
What is a ball of burning gases?
Correct Answer
C. Star
Explanation
A ball of burning gases refers to a star. Stars are massive celestial objects made up of hot, glowing gases, primarily hydrogen and helium, that emit light and heat through the process of nuclear fusion. They are the building blocks of galaxies and are responsible for providing energy and light to the universe. Planets, on the other hand, are celestial bodies that orbit around stars, and reflection is the process of bouncing back light or sound off a surface.
6.
Which planet has liquid water?
Correct Answer
Earth
Explanation
Earth is the only known planet in our solar system to have liquid water. Water is essential for life as we know it, and the presence of liquid water on Earth has allowed for the development and sustenance of a wide variety of organisms. The combination of Earth's distance from the sun, its atmosphere, and its moderate temperature range creates the conditions necessary for water to exist in its liquid form. This unique characteristic sets Earth apart from other planets in our solar system and makes it a prime candidate for supporting life.
7.
Which is the largest planet?
Correct Answer
Jupiter
Explanation
Jupiter is the largest planet in our solar system. It has a diameter of about 143,000 kilometers, which is more than 11 times the diameter of Earth. Its massive size is due to its composition, which consists mainly of hydrogen and helium. Jupiter also has a strong gravitational pull, and it is known for its iconic Great Red Spot, a giant storm that has been raging for over 300 years. Its size and unique features make Jupiter the largest planet in our solar system.
8.
Which planet recently found out it wasn't a planet anymore?
Correct Answer
Pluto
Explanation
Pluto was recently found out to not be a planet anymore. This decision was made by the International Astronomical Union (IAU) in 2006. They redefined the criteria for what constitutes a planet, and Pluto no longer met the requirements. It was reclassified as a "dwarf planet" instead. This decision caused some controversy and debate among scientists and the public.
9.
Which planet is most similar in size to Earth?
Correct Answer
Venus
Explanation
Venus is the correct answer because it is the planet that is most similar in size to Earth. Venus has a diameter that is only slightly smaller than Earth's, making it the closest match in terms of size among all the planets in our solar system. While other planets like Mars and Mercury also have sizes relatively close to Earth, Venus is the closest in size, making it the most similar planet in this aspect.
10.
How many moons does Earth have?
Correct Answer
one
1
Explanation
Earth has one moon. The moon is Earth's only natural satellite and it orbits around our planet. It is the fifth-largest moon in the solar system and plays a significant role in various aspects of Earth, including tides, stabilizing the tilt of the planet, and providing a natural satellite for space exploration. The answer "one" and "1" both indicate that Earth has a single moon.
11.
Which planet is closest to the sun?
Correct Answer
Mercury
Explanation
Mercury is the planet closest to the sun. It has the shortest distance from the sun compared to any other planet in our solar system. Its proximity to the sun means that it has a very hot surface temperature, reaching up to 800 degrees Fahrenheit. Mercury also has a very short year, completing one orbit around the sun in just 88 Earth days. Its close proximity to the sun makes it an interesting subject for scientific study and exploration.
12.
What is at the center of our solar system?
Correct Answer
sun
Explanation
The sun is at the center of our solar system. It is a star that provides heat and light to the planets, asteroids, and other celestial bodies that orbit around it. The sun's immense gravitational pull keeps all the planets, including Earth, in their respective orbits. It is the primary source of energy for life on Earth and plays a crucial role in maintaining the balance and stability of our solar system.