Lesson 1
Lesson 2
Lesson 3
Lesson 4
Lesson 5
100
Earth spins on this imaginary line.
What is an "axis"?
100
The moon revolves around the Earth. It is a ___________.
What is a "satellite"?
100
The sun, nine planets, and their moons, and other objects that orbit the sun.
What is the "solar system"?
100
This spacecraft traveled toward the sun and around Venus and Earth before making its way to Jupiter.
What is "Galileo"?
100
A meteor or part of a meteor that reaches the ground.
What is a "meteorite"?
200
The Earth follows a path around the sun.
What is an "orbit"?
200
It takes about this long for the moon to revolve around the Earth.
What is "29 1/2 days or a month"?
200
These are the five smallest planets.
What are "Pluto, Mercury, Mars, Venus, and Earth.
200
This planet's moons come in a variety of sizes--there is tiny Phoebe to Titan, the size of some planets.
What is "Saturn"?
200
A large chunk of ice and dust that orbits the sun. One famous one is Hale-Bopp.
What is a "comet"?
300
It takes one year or 365 days for Earth to orbit the sun.
What is a "revolution"?
300
You see this on the night of a full moon.
What is a "full circle"?
300
The orbits of plants are really __________, or circles that have been flattened a little.
What are "ellipses"?
300
This was used to take pictures of Pluto because it has never been visited by a spacecraft.
What is the "Hubble Space Telescope"?
300
The Big Dipper is part of this called Ursa Major, or Big Bear.
What is "constellation"?
400
When the northern part of Earth is tilted towards the sun, it is _____________.
What is "summer"?
400
When the moon moves through the shadow of Earth.
What is a "lunar eclipse"?
400
This spacecraft landed on Mars to study Martian rocks an soil.
What is the "Pathfinder"?
400
This spacecraft proved that Uranus has a magnetic field around it.
What is "Voyager"?
400
These can't be seen from Earth when they are far away, and most of its orbit is far away from the sun.
What is a "comet"?
500
A form of sun's energy.
What is "sunlight"?
500
When the sky is dark, it is a ___________.
What is a "new moon"?
500
These two spacecrafts traveled to Venus.
What are "Pioneer and Magellan"?
500
The rings of this planet did not form at the same time as the planet.
What is "Uranus"?
500
This comet hit the surface of Jupiter in 1994, and this event was recorded by the Galileo spacecraft.
What is "Shoemaker-Levy 9"?
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