Question

Revision test of science(3-02-21)

Stars and the solar system

Answer the following questions:
1.What is solar system?
2. What is constellation?
3. What are celestial objects?
4. Name outer planets.
5. Which planet is the brightest?
6. What are meteoites?
7. What are artificial satellites?
8. Why is Saturn a beautiful and unique planet?
9. Give a brief introduction of the universe.
10. What is the difference between a star and a constellation?​

Answer 1

Answer:

The Solar System is the gravitationally bound system of the Sun and the objects that orbit it, either directly or indirectly. Of the objects that orbit the Sun directly, the largest are the eight planets, with the remainder being smaller objects, the dwarf planets and small Solar System bodies.

A constellation is an area on the celestial sphere in which a group of visible stars forms a perceived outline or pattern, typically representing an animal, mythological person or creature, or an inanimate object. The origins of the earliest constellations likely go back to prehistory.

A celestial object is a naturally occurring physical entity, association, or structure that exists in the observable universe. In astronomy, the terms object and body are often used interchangeably.

Jupiter, Saturn, Uranus, and Neptune are the outer planets.

Venus is the brightest planet.

A meteorite is a solid piece of debris from an object, such as a comet, asteroid, or meteoroid, that originates in outer space and survives its passage through the atmosphere to reach the surface of a planet or moon.

Artificial satellites are human-built objects orbiting the Earth and other planets in the Solar System.

The second largest planet in the solar system, Saturn is a "gas giant" composed primarily of hydrogen and helium. But it's best known for the bright, beautiful rings that circle its equator. The rings are made up of countless particles of ice and rock that each orbit Saturn independently.

The universe is all of space and time and their contents, including planets, stars, galaxies, and all other forms of matter and energy. The Big Bang theory is the prevailing cosmological description of the development of the universe.

Star is a celestial body which emits its own light but constellation is a group of stars which together form many shapes .

Explanation:

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