1. Solar System Review What you need to know… HW: Quiz Friday
Two ways our models of the solar system has changed
The model of our current solar system
The difference between AND LOCATION OF Comets, ASTEROIDS, AND Meteoroids.
HW: Quiz Friday

2. Vocabulary Ellipse: Oval shape of the planet orbits
Orbit/Revolution: To move around an object
Rotation: To spin on an Axis
Comet: Celestial object made of ice dust and rock that orbits the sun.
Asteroids: LARGE ROCKS IN SPACE
Meteoroids: broken pieces of asteroids and comets
Meteor: rock that streaks across the atmosphere
Meteorite: Piece of rock from space that reaches earth’s surface.

3. Difference in models We used to think… Now we know…
Everything in the solar system revolved around earth
Planets and the sun revolved in little circles in big circles (corkscrew shaped)
Now we know…
The sun is in the center of the solar system.
Our planets revolve in ellipses.

4. Our solar system starting from the sun.
My……mercury
Very…..Venus
Energetic…..Earth
Mother…..Mars
Just…..Jupiter
Served….Saturn
Us……Uranus
Nachos…..Neptune

5. Inner Planets vs. Outer planets
Hot
Small
No rings
Close together
Revolve quickly
Close to sun
Cold
Large
Rings
Far apart
Revolve slowly
Far from sun

6. Comets Made of Ice, gas, and dust Found beyond pluto in the oort cloud
Revolve around the sun.
Has a tail and coma

7. Asteroid vs. Meteoroid both in space
Large rock or metal in space
Found in the asteroid belt between mars and Jupiter.
Broken piece of asteroids and comets (smaller).
Found in the asteroid belt between mars and Jupiter.

8. Meteors vs meteorite Meteoroid that reaches the atmosphere.
Shooting stars
Meteor that reaches earth’s surface.