Solar System and the Universe

Vocabulary

100

The system of sun, planets and other objects

What is the solar system

200

Astronomers use this to observe stars and planets from Earth

What is a telescope?

300

The blue-white hot core of a star after its outer layers have drifted away

What is a white dwarf?

400

9.46 trillion kilometers

What is a light year?

Galaxies

100

a galaxy that has an egg-like shape

What is an elliptical galaxy?

200

The Milky Way is an example of this

What is a spiral galaxy?

300

This galaxy has an unorganized shape, with no clear structure

What is an irregular galaxy?

400

A galaxy with a black hole in the center

What is a quasar galaxy?

Electromagnetic Spectrum

100

These are the slowest waves with the lowest energy

What are radio waves?

200

These waves have the highest energy and highest frequency. They can destroy cancer cells but also can cause harmful radiation.

What are gamma rays?

300

These waves are used for thermal imaging, like night vision goggles

What are infrared waves?

400

This is the part that humans can perceive with their eyes

What is visible light?

Stars

100

the brilliant explosion of a giant star. This is only in the high-mass stars cycle.

What is a supernova?

200

This is the beginning stage of both high-mass or low-mass stars

What is a protostar?

300

This star has the life cycle:

protostar > red giant > planetary nebula > white dwarf

What is the low-mass or medium-mass star?

400

This star has the life cycle:

 protostar > supergiant > supernova > black hole or neutron star

What is a high-mass star?

Solar System

100

The formation of the universe, an explosion

What is the Big Bang?

200

Our solar system is part of this galaxy

The Milky Way

300

The planets Jupiter, Saturn, Uranus and Neptune are known as these.

What are the Gas Giants?

400

These are the rockiest planets in the solar system

What are the inner planets? (Mercury, Venus, Earth, Mars)