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Definition of some the words in the text:

Asteroid: (noun) a small rocky body orbiting the sun.

Asteroid belt: (noun) the region of space between the orbits of Mars and Jupiter in which most asteroids are located.

Comet: (noun) a body moving about the sun consisting of a central mass surrounded by an envelope of dust and gas that may form a tail that streams away from the sun.

Meteoroid: (noun) a small body moving in the solar system that would become a meteor if it entered the earth’s atmosphere.

Meteor:(noun) a small body of matter from outer space that enters the earth’s atmosphere becoming incandescent as a result of friction and appearing as a streak of light.

Elliptical: (adjective) refers to the shape of an ellipse, which is an elongated circle, stretched into an oval.

Exert: (verb) apply or bring to bear

Theorize: (verb) form a theory about something.

Solar system

The words “solar system” refer to the Sun and all of the objects that travel around it. These objects include planets, natural satellites such as the Moon, the asteroid belt, comets, and meteoroids. Our solar system has an elliptical shape and is part of a galaxy known as the Milky Way. The Sun is the center of the solar system. It contains 99.8% of all of the mass in our solar system. Consequently, it exerts a tremendous gravitational pull on planets, satellites, asteroids, comets, and meteoroids. Astronomers believe the solar system formed 4.5 billion years ago. However, they differ in their beliefs about how the system formed. Some believe the whole solar system formed from a single flat cloud of gas, while others believe it formed when a huge object passed near the Sun, pulling a stream of gas off of the Sun. Astronomers theorize the planets then formed from this gas stream.

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Answer these questions:

Q1. What is solar system?

Q2.What are the objects around the sun?

Q3.What makes the gravity?

Answer to the questions:

A1. It is the sun and all of the objects that travel around it.

A2. They are planets, natural satellites such as the Moon, the asteroid belt, comets, and meteoroids.

A3. The sun contains 99.8% of all of the mass in our solar system so it exerts gravitational pull on planets, satellites, asteroids, comets, and meteoroids.

Resource: www.starchild.gsfc.nasa.gov