1. Comet, Meteor, Asteroid, Meteoroid, Meteorite
Using your textbook and internet resources, identify the following objects in the pictures:
Comet, Meteor, Asteroid, Meteoroid, Meteorite A. B. E. C. D.

2. Support your choice with evidence from your research.
Object A is __________. I know this because:__________________
Object B is _______________. I know this because:__________________
Object C is __________. I know this because:_____________________
Object D is ____________. I know this because:____________________
Object E is __________________. I know this because:___________________________

3. What other objects are there in space?
Review
What other objects are there in space?

4. As you watch the video, try to identify the objects on your sheet
Other Objects in Space
As you watch the video, try to identify the objects on your sheet

5. Object A
Asteroid
How do you know?

6. between Mars and Jupiter
Asteroid Belt
between Mars and Jupiter

7. Asteroid Belt
Have not formed a planet due to the gravitational pull of Jupiter.

8. Vesta is one of the largest asteroids visited by a spacecraft (330 miles in diameter), it is also considered a proto-planet

9. Object E
Comet
How do you know it’s a comet?

10. Comets
Made of dust, rock particles, ice, methane, and ammonia.

11. Comets come from the Oort Cloud
-Located beyond Pluto surrounding the solar system

12. Life of a Comet

13. Life of a comet

14. Object B
Meteoroid
How do you know?

15. Meteoroids
As comets vaporize and break up, they leave behind small particles of dust and rocks. These are meteoroids.

16. Meteoroid Trail/Orbit

17. Object C
Meteor
How do you know?

18. Meteors
A meteoroid that enters Earth’s atmosphere (speeds of km/s) and burns up is called a meteor.
Each time Earth passes through an old comet orbit, a meteor shower occurs.

20. Object D
Meteorite
How do you know?

21. Meteorite
If a meteor is too large to burn up completely, it will strike the Earth-now it’s called a meteorite.

22. Meteorites Crater in Arizona formed 50,000 years ago
100-foot-wide (30-meter-wide) meteor weighing 100,000 tons slammed into the Arizona desert at an estimated 12 miles (20 kilometers) a second.
The resulting explosion exceeded the combined force of today's nuclear arsenals and created a 0.7-mile-wide (1.1-kilometer-wide), 650-foot-deep (200-meter-deep) crater.

23. The two lakes shown here, are the result of some of the largest impact craters still preserved on the surface of the Earth. NASA officials said asteroids currently threatening Earth could devastate an entire region, but not the entire globe.
Lake Bosomtwe in Ghana, Africa
Lake Manicouagan in Quebec, Canada,

24. Moon Craters

26. The sky this week

27. 9. Why do I care?
Comets, asteroids and meteorites formed early in the history of the solar system. Studying these objects helps scientists learn how the Earth formed and how other Earth-like planets may also form in the Universe.
Plus, knowing where these things are might help us avoid being killed by it.

28. What is it?
Comet
Asteroid
Meteoroid
Meteor
Meteorite