What two factors keep planets orbiting around a star like the sun? Inertia Gravity.
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Transcript of What two factors keep planets orbiting around a star like the sun? Inertia Gravity.
![Page 1: What two factors keep planets orbiting around a star like the sun? Inertia Gravity.](https://reader030.fdocuments.us/reader030/viewer/2022032702/56649cb15503460f949763ce/html5/thumbnails/1.jpg)
What two factors keep planets orbiting around a
star like the sun?
•Inertia
•Gravity
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Planet- one of the 8 celestial bodies revolving around thesun. Planet requirements-
1. Revolve around sun 2.be spherical 3.clear orbital path.
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We ___________ around the sun.revolve
When we orbit or revolve around the sun, we do not travel in a perfect circle. We revolve around the sun in an elliptical path.
An ellipse is kind of like a squashed circle.
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Pluto is a considered a dwarf planet. It lost its ‘planet’ status because it had NOT cleared its orbital neighborhood.
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•Mercury•Venus•Earth•Mars•Jupiter•Saturn•Uranus•Neptune
What are the planets ofour solar system?
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How can we remember the order of these 8 planets?
By remembering this sentence:
My very eager mother just served us nachos!
Revolving
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Since there are two planets in The Solar System that start with M, Mercury and Mars, how can we remember which is
first?M = VEM =JSUN
My = Mercury
Mother = Mars
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Name the inner planets?
Name the outer planets?
How are they different?
Mercury, Venus, Earth, Mars
Jupiter, Saturn, Uranus, Neptune
Inner planets are terrestrial or rocky.Outer planets are gaseous.
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What do we say to remember our planets?
My Very Eager Mother Just
Served Us Nachos!
Mercury Venus Earth Mars Jupiter
Saturn Uranus Neptune
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An asteroid belt separates the inner and outer planets.
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Pretend you are traveling out from the Sun to Neptune.
Feel the distances!
http://www.classzone.com/books/earth_science/terc/content/visualizations/es2701/es2701page01.cfm
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