Stars
Heat Transfer
The Sun
Galaxies
The Universe/ objects in it
100

The property of stars that scientists use to determine the temperature of a star.

What is color?

100
Heat Transfer by touch

What is conduction?

100

This is where nuclear fusion takes place in a star. 

What is the core?

100

A type of galaxy with new stars-middle age stars and arms that rotate like a hurricane.

What is spiral galaxy?

100

Two main features of the universe. (Think what is smaller than the universe, what is the next smallest after that) 

What are star systems and galaxies?

200

This is how bright a star appears from Earth

What is apparent brightness/magnitude?

200

Heat transfer through any space

What is radiation?

200

The layer of the sun next to the core where energy is radiated upwards to the outer layers of the sun.

What is the radiation zone?

200

A type of galaxy with older stars and very little dust/gas.

What is elliptical galaxy?

200

Large chunks of rock and iron that orbit the sun. 

What are asteroids?

300

The most common elements in which stars are composed of.

What are hydrogen and helium?

300

Heat transfer through air or water currents

What is convection?

300

The visible layer of the sun's atmosphere

What is the photosphere?

300

This is the type of galaxy in which our star belongs.

What is a spiral galaxy?

300

Small pieces of asteroids that break off and drift through space. If they burn up in the atmosphere we sometimes call them shooting stars.

What are meteors?

400

This is how bright a star actually is. 

What is absolute brightness/luminosity?

400

Can convection occur in through solid objects?

No

400

The layer of the Sun next to the corona.

What is the chromosphere?

400

This is the amount of stars a galaxy can hold.

What are billions and billions of stars?

400

A large ball of ice, rock, dust, and gas that forms a tail as it gets closer to the sun. 

What is an asteroid?

500

This is what changes the apparent brightness of a star. 

What is a distance from Earth?

500

If heat transfers from a liquid into a gas, is that convection? (Such as from ocean water into the air) 

No

500

The outermost layer of the sun that extends for millions of miles. 

What is the corona?

500

This type of galaxy has no definite shape, no center point, and very young stars

What is an irregular galaxy?

500

What are galaxies made of?

Stars, Dust, and Gas