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Science Chapter 9 > Lesson 3 > Flashcards

Lesson 3 Flashcards

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Biology 101 flashcards
1
Q

What is the sun made of?

A

Hydrogen and helium

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2
Q

What is a sunspot?

A

Dark spot on the surface of the sun

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3
Q

What are solar flares?

A

Red streams and loops that are gases that shoot out from the sun

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4
Q

How long do sunspots and solar flares last?

A

A few days

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5
Q

Which color star is the hottest?

A

Blue

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6
Q

Which color star is the coolest?

A

Red

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7
Q

Which best describes the sun?

A

Medium-sized star

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8
Q

What are the 2 ways in which people classify groups of stars?

A

Constellations and galaxies

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9
Q

What is a galaxy?

A

A huge system of gases, dust and stars

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10
Q

What galaxy does our solar system belong to?

A

Milky Way

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11
Q

What is the shape of our galaxy?

A

Spiral

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12
Q

Why do constellations seem to change their locations?

A

Earth is moving, but the stars are not

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13
Q

What is a star?

A

A huge ball of superheated gasses

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14
Q

What is a constellation?

A

A group of stars that form and an imaginary picture in the sky

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15
Q

Define what the sun is?

A

It’s a star that is at the center of our solar system. It’s medium is yellow

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16
Q

What is a universe?

A

Everything that exist in space

17
Q

Constellations always change their locations in the sky. True or false?

A

False

18
Q

Sunspots and solar flares only last a few days.

True or false?

A

True

19
Q

The sun is the largest star. True or false?

A

True

20
Q

A long time ago, stars helped people with direction.

True or false?

A

True

21
Q

All galaxies are shaped the same.

True or false?

A

False

22
Q

List the two gases that mostly make up the sun.

A

Hydrogen and helium

23
Q

Name two ways that people classify stars.

A

Constellations and galaxies

24
Q

Name a constellation.

A

Big Dipper

Science Chapter 9 (3 decks)

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