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Earth and Space > Stars > Flashcards

Stars Flashcards

1
Q

What two things do stars give off?

A

Light and Heat

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2
Q

What two gases are stars made of?

A

Hydrogen and Helium

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3
Q

What is the process called when hydrogen atoms fuse together to form helium and a star releases energy?

A

Nuclear Fusion

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4
Q

How are stars formed?

A

Stars are born in large clouds of dust and gas called nebula (nebulae).

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4
Q

What are the largest stars called?

A

Supergiants

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5
Q

What are the second largest stars called?

A

Giants

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6
Q

Medium sized stars are called…

A

Yellow Dwarf

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7
Q

What are the smallest stars called…

A

Dwarfs

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8
Q

What size is our sun considered?

A

Yellow Dwarf (medium sized)

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9
Q

How do astronomers tell how hot stars are?

A

Astronomers can tell how hot stars are by the colors they see when they look at them through a special telescope.

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10
Q

What color are the hottest stars?

A

Blue

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11
Q

What color are the second-hottest stars?

A

White

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12
Q

Stars with average heat are what color?

A

Yellow

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13
Q

The coolest (coldest) stars are what color?

A

Red

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14
Q

How are stars classified (named)?

A

Stars are classified by their size and color.
Be able to identify some of these

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15
Q

What is it called when a star explodes violently and dies?

A

Supernova

16
Q

When a star collapses in on itself and dies, it can form a…

A

Black Hole

17
Q

Why do large stars appear to be so small in the night sky?

A

The larger, brighter stars are so far away.

18
Q

Why does the sun appear to be bigger than distant stars?

A

It looks bigger because it is so much closer to Earth.

19
Q

Is the Sun or the Earth at the center of our solar system?

A

The Sun (Heliocentric)

20
Q

The sun is the source of most of the _____ on Earth.

A

energy

21
Q

The _____ is the only object in our solar system that produces its own _____.

A

sun
light

Earth and Space (5 decks)

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