Earth
Sun & Moon
Our Solar System
Outside of the Solar System
Eclipses
100

Why is the climate warmer on the Earth's equator and colder near the poles?

The tilt of the Earth leads to  different amounts of light being concentrated at different sections of Earth throughout the year

100

Our solar system contains 8 planets called:

Mercury
Venus
Earth
Mars
Jupiter
Saturn
Uranus
Neptune

100

Astronomers calculate and compare distances in space. In our solar system, kilometers are too small to be useful. Instead scientists use:

Astronomical Units

100

To view a partial solar eclipse, a viewer stands in this part of the shadow…

Penumbra
200

I am the spinning of a celestial body on its axis. For Earth, I cause day and night.

Rotation

200

I am the force of attraction between any two objects with mass. I keep the planets in orbit around the Sun and the Moon around Earth.

Gravitational Force
OR
Gravity

200

In distances farther away then the edge of our solar system, astronomers use the following to measure distance:

Light Year

200

The Earth's shadow makes me turn red at night,

Hiding my silvery, usual light.

What am I?

Lunar Eclipse
300

The flat plane in which Earth's orbit resides is called:

Orbital Plane

300

Why do the planets orbit the sun and not each other?

The sun has the highest mass (99.8%) in the solar system

300

Outside of the solar system, Astronomers quickly realized that the solar system is within...

The Milky Way Galaxy

300

I happen when the Moon's in the way,

Blocking the Sun in the middle of the day.

What am I?

Solar Eclipse

400

Which planets are the rocky planets

Mercury, Venus, Earth, Mars (any order)

400

The force that prevents the Earth, along with any other planet, from falling into the sun

Velocity

400

How is a light year defined

The distance light travels within one year

400

I'm the darkest, central part of a shadow, where the light source is completely blocked. If you're in me during a solar eclipse, you see totality!



Umbra

500

Looking out your window at night throughout the course of a year you notice that different constellations are visible in the night sky.

Why does this happen?

Earth’s revolution 



Explanation: As Earth moves around the sun, this results in the side of Earth facing away from the sun (night time) facing a different direction in space.

500

The theory that explains how the solar system formed: 

Nebula Theory

500

I am a celestial object with gravity so strong that nothing, not even light, can escape me. I can form from the collapse of a massive star. Found at the center of all galaxies

 a supermassive black hole

500

To have an eclipse, the moon must enter the “  “   and line up with either the sun or moon

Orbital Plane
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