Show:
Planets
Non-Planets
The Sun and Stars
Technologies
Beyond the Solar System
100
Liquid Water on the surface.
What is Earth and/or Mars?
100
Dirty Snow Balls that orbit the sun and have long tails.
What are comets?
100
Dark regions on the surface of the sun.
What are sun spots?
100
The most common device used for looking into space; uses visible light to create an image.
What is the telescope?
100
The idea that the Universe will continue to expand endlessly.
What is the Big Bang Theory?
200
The Red Planet, with the largest volcano in the Solar System
What is Mars?
200
Large, round objects with other debris and materials in their orbits around the sun.
What are dwarf planets?
200
Stars that burn out the fastest.
What are Giant stars?
200
Worn by astronauts when they leave the space station or shuttle.
What is a space suit?
200
The idea that the Universe will condense into one small point (Big Crunch) before beginning again.
What is Oscillating Theory?
300
The smallest terrestrial planet.
What is Mercury?
300
Shooting Stars, that burn as they enter Earth's atmosphere.
What are meteors?
300
Other than the core, the hottest layer of the sun, that emits out from the surface of the sun. It is only visible during an eclipse.
What is the Corona?
300
Orbit the Earth, transmitting signals all over the Earth, including GPS.
What is a satellite?
300
Shape of the Milky Way.
What is a Spiral Galaxy?
400
Europa and Ganymede are two of its moons, the planet with the most moons.
What is Jupiter?
400
Space rocks that are found at the surface of the Earth.
What are meteorites?
400
Clouds of stardust.
What are nebulae?
400
Provide the force necessary to send objects into space.
What is rocket propulsion?
400
A very large and very dense region that has such gravitational pull that not even light can pass through.
What is a Black Hole?
500
The planet with many large rings made of rock and ice.
What is Saturn?
500
Round holes on the surface of a celestial body that are a result of a collision with space materials.
What are craters?
500
A phenomenon caused when charges particles from the sun are attracted to the magnetic north and south of the Earth.
What is Aurora Borealis and Aurora Australis (Northern and Southern lights)?
500
Travel to remote regions of space, sending information back to the Earth.
What is a space probe?
500
Two ideas that attempt to explain the beginnings of our Solar System.
What are Stellar Collision Theory and the Nebular Hypothesis?