Astronomy Basics
The Inner Planets
The Outer Planets
The Non-Planets
Our Nearest Star
100

The study of objects in outer space is called this.

Astronomy

100

What is another word for inner planet?

Terrestrial planet.

100

What is another word for outer planet?

Gas giant.

100

This is an object made of dust, ice, and frozen gasses that orbits the sun.

Comet

100

These are cool dark spots on the Sun.

Sunspots

200

A scientist who studies objects in outer space is called this.

Astronomer

200

This planet rotates backwards, and its day is longer than its year.

Venus

200

This is the largest planet in the solar sytem.

Jupiter.

200

This is a rocky piece of a comet or asteroid that floats through space and can potentially reach a planet.

Meteoroid

200

These are eruptions of plasma near sunspots.

Solar flares or prominences.

300

This instrument can look at objects in outer space.

Telescope.

300

This is the smallest planet.

Mercury
300

This planet is the furthest planet from the Sun.

Neptune

300

This is a rocky piece of a comet or asteroid that has entered Earth's atmosphere and has begun to glow.

Meteor.

300

How old is the Sun?

5 billions years.

400

This is the Sun and everything that revolves around it.

The Solar System.

400

This is a reddish planet with two moons.

Mars

400

This planet has more known moons than any other planet.  It's also the furthest planet you can see without a telescope.

Saturn

400

This is a rocky piece of a comet or asteroid that has struck the Earth's surface.

Meteorite

400

I'm sure you noticed the weather is getting colder.  This is because of two things.  What are they?  It's not because Demeter is missing Persephone.

The Earth is revolving around the Sun, and the Northern Hemisphere is tilting away from the Sun.

500

This early astronomer used a telescope to observe the Sun.  DON'T TRY THIS AT HOME!

Galileo

500

Name four characteristics of inner planets.

Few moons, no rings, smaller, and solid surface.

500

Name four characteristics of outer planets.

Larger, made of gas, rings, and many moons.

500

What is between Mars and Jupiter?

The Asteroid Belt

500

As the weather gets cooler in the Northern Hemisphere, what is happening in the Southern Hemisphere and why?

It is getting warmer, because it is starting to tilt toward the Sun.

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