SCIENCE CLASS

BLOCK 5

Earth and Space

What are the patterns in space?

I will learn:

*about the Solar system.


Lesson 3 . What is the solar system?

1. Read and mark (x) the statements that are false.

    The solar system includes the sun, the eight planest and their moon, and other objects. The sun, a medium-sized star is at the center of the solar system. The planets and other revolve around the sun. The path that each object follows is its orbit. The sun´s gravity keeps planets in their orbits. Gravity is the force that pulls objects toward each other. Because, the sun is so massive, its gravity is the strongest in the solar system.

    The sun´s gravity pulls planets toward it. As a result, the planets do not move in straight lines. They move in curved paths around the sun. A planet´s orbit is shaped like an ellipse, a slightly streched-out circle. 

1. Basically, the solar system consist of eight planets and their moons. ____

2. Earth and the other seven planets revolve around the sun. ____

3. Beacuse the sun is the smallest object in the solar system, its gravity attracts all the other objects in toward it. ____

4. Planets move around the sun, following their own elliptical orbit.

Watch the following video to know more information about the following topics:

* Objects in the solar system.

* Planets and Moons.

* Inner planets.

* Outer planets.