Universe (The Universe) Quiz - ICSE Class 8 Science
Free practice quiz: Universe (The Universe) (ICSE Class 8 Science). 51 multiple-choice questions with answers and explanations. Play online, no sign-up needed.
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Which celestial body is known as Earth's natural satellite?
- The Sun
- Mars
- The Moon
- Venus
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Answer: C. The Moon
The Moon orbits the Earth and is its only natural satellite. The Sun is a star, and Mars and Venus are planets.
What is a constellation?
- A group of stars that form a pattern in the night sky
- A celestial body that emits its own light
- A large cloud of gas and dust
- A planet with rings
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Answer: A. A group of stars that form a pattern in the night sky
A constellation is an area on the celestial sphere in which a group of visible stars forms a perceived outline or pattern, usually representing an animal, mythological figure, or inanimate object.
What is a black hole?
- A star that has burned out
- A region of spacetime where gravity is so strong that nothing, not even light, can escape
- A large cloud of gas and dust
- A fast-spinning neutron star
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Answer: B. A region of spacetime where gravity is so strong that nothing, not even light, can escape
A black hole is an object or region of spacetime that has such immense gravity that nothing, not even light, can escape from it once it has crossed the event horizon.
What is the term for a planet that orbits a star outside of our solar system?
- Rogue planet
- Binary star
- Exoplanet
- Nebula
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Answer: C. Exoplanet
An exoplanet, or extrasolar planet, is a planet that orbits a star that is not our Sun.
Which of the following is not a type of star?
- Red Giant
- White Dwarf
- Nebula
- Neutron Star
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Answer: C. Nebula
A nebula is a cloud of gas and dust, which is where stars are born. Red Giants, White Dwarfs, and Neutron Stars are all stages in the life cycle of stars.