What is the Universe? Hint: It isn't 42

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NGSS.HS-ESS1-2

NGSS.HS-ESS1-3

What is a light year

• Distance light travels in a year

• ~6 trillion miles

• ~10 billion miles

• ~60 billion trillion miles

• The farthest we can see

A galaxy is...

• an assembly of stars, related matter, and gas.

• held together by mutual gravity.

• always a disk shape like this image.

• also known as a milky way.

A star is a sphere of ________.

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NGSS.HS-ESS1-1

What is a planet?

• An orbiting body large enough to become round due to its own gravity

• Any celestial body orbiting a star

• An orbiting body large enough to dominate the vicinity of its orbit

• The nine bodies that revolve around the sun and their moons

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NGSS.MS-ESS1-3

Why is Pluto now considered a dwarf planet by the IAU?

• It isn't large enough to be round by the force of its own gravity

• It isn't the dominate body in it's orbit

• It is smaller than India and the IAU bases it's decisions on size comparison to continents on Earth

• It technically doesn't orbit the sun.

What is a moon?

• A natural satellite of a planet

• Any object in orbit

• A object that is no bigger than 1/4th the size of the body it orbits

• A naturally occurring satellite that is smaller than a dwarf planet

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NGSS.MS-ESS1-1

When we look out into space, we...

• look back in time.

• stare into a void of nothing.

• see objects as they are.

• see only the stars of far off galaxies.

Our moon's average distance from earth is _______ miles.

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NGSS.MS-ESS1-1

NGSS.MS-ESS1-3

The gas and dust of a nebula signify...

• Death

• Birth

• Remains of old stars

• Raw materials for new stars

• The presence of a black hole

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NGSS.HS-ESS1-3