1. Science Starter
Name as many planets as you can in order (closest to farthest from the sun).
2. Do you know any acronyms for remembering the order of the planets?
3. What makes life possible on Earth?

2. Lesson Essential Question
How did the solar system form?

3. Ancient Worlds??

4. Our Galaxy

5. Sooo… How’d it happen?

6. Directions for Notes You only need to write the information in YELLOW.
Please write your notes in your notebook under Unit 1: Astronomy
Day 1: Formation of our Universe

7. The Beginning…
Big Bang Theory- 14 Billion years ago a massive explosion started our universe

8. Solar Nebula Theory Nebula-cloud of dust & gas in space
Nebular Theory-the sun and planets formed from a rotating disk of dust and gases.

9. Our Solar System

10. How to remember the order…
My = Mercury
Very = Venus
Educated = Earth
Mother = Mars
Just = Jupiter
Sold = Saturn
Us = Uranus
Nine = Neptune
Pizzas = Pluto

11. DO NOW
1. Our galaxy is called the _____________. 2. According to the Big Bang theory, the universe began about ____. 3. Name all of the planets in order (remember the acronym) 4. The formation of the solar system from a huge cloud of dust and gases is called the _________.
9/8/2015

12. Size Comparison
99.85% of our solar system’s mass is contained in the sun
The planets make up the remaining 0.15%
The sun’s gravitational force guides the planets as they orbit

13. Turn & Talk
Turn to the partner at your side and share with them the following:
What information do you know about our sun? (if any)

14. Our Sun Do you know- 1.3 million earths can fit inside
870,000 miles wide
93 million miles away from earth
8 ½ minutes for light to reach earth
How hot?
10,000 million degrees

15. The power of the Sun…
The Sun gives us heat, light, our food, and the air that we breathe.
It powers the atmosphere to give us the winds and rain. Even the coal and oil that generate electricity for light and power come from plants and animals that lived hundreds of millions of years ago and depended on the Sun for life.

16. We Aren’t as Big as We Think.

20. Terrestrial & Jovian Planets
Terrestrial Planets – Mercury, Venus, Earth, & Mars (small & rocky)
Jovian Planets – Jupiter, Saturn, Uranus, & Neptune (huge gas giants)
Pluto does not fit well into either category

21. Who discovers all this?? Stephen Hawking Astrophysicist
Black holes & Radiation
Amyotrophic Lateral Sclerosis (ALS)
Many books, movies, and TV shows

22. Compare & Contrast
Use your textbook (reading, tables, & figures on pgs ) to create a chart comparing Terrestrial & Jovian Planets
You have 10 minutes to work quietly in your desk – you may discuss your chart with students sitting near you

23. Compare & Contrast Factors to consider: Distance between planets
Size of diameter
Density
Speed of Rotation
Atmosphere
Composition (what are these planets made of)
Terrestrial Planets
Jovian Planets

24. Compare & Contrast Terrestrial Planets Jovian Planets
Orbits are close together
Orbits are far apart
Smaller diameter
Larger diameter
More dense
Less dense
Rotate slower
Rotate faster
Thin or no atmosphere
Thick atmosphere
Composed mostly of rocky & metallic substances, with few gases & ices
Mostly made of gases and ices, but with rocky and metallic materials in their cores