planets
the sun
the moon
miscellaneous
vocab
100
This is the planet that is closest to the sun.
What is Mercury?
100
The sun is the center of this system.
What is the solar system?
100
The moon is a natural type of this that revolves around a bigger object.
What is a satellite?
100
This moon phase occurs when the moon is between the earth and sun so that the dark side of the moon faces earth.
What is the new moon phase?
100

A rock entering Earth's atmosphere, about the size of a pebble

What a meteor?

200
This is the 3rd planet from the sun.
What is earth?
200
The sun is a type of this gas sphere that gives off light and heat.
What is a star?
200
These are hollow pits on the surface of the moon.
What are craters?
200
When the sun light shines on more and more of the moon, we say that the moon is doing this.
What is waxing?
200

A mass of dust and ice, has a tail made of dust and gas

What is a comet?

300
This is what all the planets have in common?
What is "they revolve around the sun?"
300
It takes the earth 365 days to do this.
What is revolve (orbit) around the sun?
300
The moon's gravitational pull causes this rise and fall of the ocean.
What are tides?
300

Rocky object, not large enough to be classified as a planet

What is an asteroid?

300

Located just outside of Neptune. A doughnut-shaped region of icy bodies in the outer solar system

What is the Kuiper belt?

400
These are the rocky planets.
What is Mercury, Venus, Earth, and Mars?
400
This is how long it takes earth to complete one rotation.
What is 24 hours --or one day?
400
These are the apparent shapes of the moon.
What are phases?
400
These two things cause the earth to experience seasons.
What is the tilt of the earth and its revolution around the sun?
400

A sphere of icy particles surrounding the solar system.

What is an Oort cloud?

500
These are the gas giants.
What are Jupiter, Saturn, Uranus, and Neptune?
500
The sun is responsible for this first step of the water cycle.
What is evaporation?
500
These are higher and lower than normal tides.
What are spring tides?
500
Coal, oil, and natural gas are all types of this energy source.
What are fossil fuels?
500

The Moon stays in orbit around Earth instead of orbiting the Sun directly

What is Gravity?

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