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

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.

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?

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 365.25 days (1 year).

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

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 365.25 days.

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

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

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

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!

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

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.

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.

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

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!

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.

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.

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.

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.

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

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

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 ____________.

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

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

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

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

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

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