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Science_Lab_Yellow / Lesson 4: The Solar System

Solar System
What will we be learning today?

  • In this lesson, we are going to learn all about the Solar System.

  • Solar System is the Sun and the objects that are traveling around it.

  • The objects around the Sun include nine planets

  • Planets are objects that travel around a star in a path

  • The path is called an orbit

  • One complete trip of an object in its orbit around the Sun takes one year

  • A year is different from planet to planet

  • Earth one year is 365 days

  • Looking on the chart on the next slide you can see:

  • That Pluto has the longest year = 90,700 days = The farther away from the Sun, the longer it     takes to orbit the Sun, and the longer its year

  • That Mercury has the shortest year = 88 days



    This sentence will help you remember the order of the nine planets from the Sun outward:

    Mother Very Easily Made A Jam Sandwich Using No Paprika

    • Mercury

    • Venus

    • Earth

    • Mars

    • Jupiter

    • Saturn

    • Uranus

    • Neptune

    • Pluto

  • An invisible force holding the Sun and a planet together is called gravity

  • It is a force of attraction or pull, between any objects and any other around it

  • Sir Isaac Newton came up this whole gravity idea

  • His idea is called the law of universal gravitation

  • Let's Review What We Learned Today!

  • Solar System - The Sun and the objects that are traveling around it

  • Planets - Any of the nine objects that travel around the Sun and shine by reflecting its light

  • Gravity - A force of attraction or pull, between any object and any other objects around it