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Planets in Our Solar System
Definitions
Stars
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The Moon and The Sun
100
The third planet in our solar system
earth
100

The study of the universe beyond earth is called _______________.

What is Astronomy

100

The north star is also called this

Polaris

100

What is the first stage of a star life cycle

What is a nebula

100
when seen in the sky, it is difficult to detect because the sun is behind it, so that it's surface facing the Earth is non-reflective.
What is a New Moon?
200
The biggest planet in our solar system.
Jupiter
200

a celestial object made of ice and rock

comet

200

The name of our galaxy

the milky way


200


In this stage, a star spends most of its life. Hydrogen is fused into helium at a temperature of millions of degrees.

What is main-sequence?

200

The name for the eclipse which occurs when the sun, moon and earth line up in this order

Solar Eclipse

300
the smallest planet
mercury
300
what we use to measure distances in our solar system
Astronomical Unit
300

Groups of stars that seem to form

shapes or patterns are called _____________.

what is constellations

300

This stage is when a high mass star explode

What is a Supernova

300
The number of moon phases there are

What is 8

400
this planet orbits the sun on its side
Uranus
400
a system of millions or billions of stars, together with gas and dust, held together by gravitational attraction.
a galaxy
400

why stars appear brighter than others

size and distance from the earth

400

Where would you find the Asteroid Belt?

Between Mars and Jupiter

400
an eruption of intense high-energy radiation from the sun's surface, which is associated with sunspots.
solar flare
500

The four outer planets all have this in common. Please name them as well.

All gaseous planets.

Saturn Jupiter Uranus Neptune

500

What is the name of the astronomical event that is the start of spring and fall with equal daylight and darkness?

what is equinox

500

The sun is made of these two elements. 

Hydrogen and helium

500

How long does it take the International Space Station to orbit the earth?

what is 90 minutes

500

The name for the eclipse which occurs when the sun, earth and moon line up in this order

Lunar Eclipse