1. Vocabulary LT: I can define important vocabulary Earth and Space
Credit: Katie Brown, Shuksan Middle School

2. Axis (noun)
Definition: An imaginary line that goes through the center of the earth.
Sentence: The earth’s axis goes from the north pole to the south pole.
The earth tilts on its axis.

3. Rotation (noun) root word = rotate
Definition: To turn or spin around a central point or axis.
Sentence: The Earth’s rotation takes 24 hours.
Which direction does the earth rotate?
What gesture can you create that shows rotation?

4. Revolution (noun) root word = revolve
Definition: To move in a curved path around a central object, such as a star or planet.
Sentence: The Earth revolves around the sun. It makes one revolution every days (1 year).

5. What is the difference between the words “rotate” and “revolve?”
Rotate means ___________, but revolve means_________.

6. Use these words: rotation, axis, revolution
The earth rotates on its central point, or ________. It makes one full ____________ on its axis every 24 hours and one ______________ around the sun every days.

7. Orbit (noun or verb)
Definition: The curved path of an object around a central object in space.
Sentence: (noun) The comet might cross the earth’s orbit.
Sentence: (verb) The planet Mercury orbits the sun.
“Orbit” is a thing
“Orbit” is an action

8. What’s the difference between “revolve” and “orbit?”
THINK
PAIR
SHARE

9. Satellite (noun)
Definition: A natural object that orbits around another object in space.
Sentence: The earth is a satellite of the sun.

10. Are these statements correct?
Why or why not?
The earth is a satellite of the sun. The sun is a satellite of the earth. The earth orbits the sun. We put a satellite into orbit.
THINK….
THEN SHOW!

11. Solar System (noun)
Definition: A system of planets or other bodies orbiting another star.
Sentence: There are eight planets in our solar system.

12. Galaxy (noun)
Definition: Group of billions of stars and their planets, within the universe.
Sentence: Our solar system is located in the Milky Way galaxy.

13. Universe (noun)
Definition: All matter and energy, including galaxies, solar systems, and all of the contents of space.
Sentence : Scientists love to explore the universe to learn new things about deep space.

14. Which is bigger?
A solar system?
A galaxy?
The universe?

15. Star (noun)
Definition: A sphere of hot glowing gases that releases energy in the form of heat and light.
Sentence: When the sky is clear, you can see many stars.
They look like this!
Not like this!

16. Planet (noun)
Definition: A massive, spherical (circular) space object that orbits a star.
Sentence: Two planets in our solar system are called Mercury and Venus.

17. Comet (noun)
Definition: A mass of frozen gas, cosmic dust, ice crystals, and organic material that orbits the sun.
Sentence: The light of a passing comet is exciting to watch.

18. Asteroid (noun) Definition: A mostly rocky object that orbits the sun.
Sentence: Many people want to know what would happen if a large asteroid hit the earth.

19. Meteoroid (noun)
Definition: A solid object moving in space that is smaller than an asteroid.
Sentence: A meteoroid that comes near earth usually breaks up in the atmosphere.

20. Mostly made of ice or gas
Comparison Matrix
Put an “x” in the correct box
Orbits the Sun
A solid object
Mostly made of ice or gas
Mostly made of rock
Comet
Asteroid
Meteoroid

21. Using the correct word Meteoroid Meteor Meteorite
A solid object moving in space, smaller than an asteroid
Meteor
The streak of light that is produced when a meteoroid burns as it enters the atmosphere
Meteorite
A meteroid that strikes a planet

22. Meteoroid? Meteor? Meteorite?
If you saw a flash of light go across the sky, like a shooting star, it would most likely be a _________.
If you found a rock in the desert that came from space, it might be a ___________.
If you saw an object space that looked smaller than an asteroid, it may be a __________.
If you see something burning up in the atmosphere, it could be a ____________.

23. Words to use: Galaxy Universe Star Satellite Orbit
What does this picture represent? Explain why. (There can be more than one answer)
Words to use: Galaxy Universe Star Satellite Orbit

24. Words to use: Galaxy Universe Star Satellite Orbit
What does this picture represent? Explain why. (There can be more than one answer)
Words to use: Galaxy Universe Star Satellite Orbit

25. Words to use: Meteoroid Meteor Meteorite Asteroid Comet
What does this picture represent? Explain why. (There can be more than one answer)
Words to use: Meteoroid Meteor Meteorite Asteroid Comet

26. Words to use: Rotation Revolution Axis Planet Orbit
What does this picture represent? Explain why. (There can be more than one answer)
Words to use: Rotation Revolution Axis Planet Orbit

27. What does this picture represent. Explain why
What does this picture represent? Explain why. (There can be more than one answer)
Words to use: Rotation Revolution Axis Planet Orbit

28. Words to use: Meteoroid Meteor Meteorite Asteroid Comet
What does this picture represent? Explain why. (There can be more than one answer)
Words to use: Meteoroid Meteor Meteorite Asteroid Comet