Chemistry and the Sun Flashcards

1
Q

Matter

A

anything that has mass and volume

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2
Q

Solid

A

definite volume and shape

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3
Q

Liquid

A

no definite shape; definite volume

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4
Q

Gas

A

no definite shape or volume

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5
Q

Plasma

A

gas where some particles are ionized

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6
Q

Element

A

a substance that cannot be broken down into simpler substances

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7
Q

Element examples

A

oxygen, hydrogen, chlorine

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8
Q

Atom

A

the smallest part of an element that has all the properties of that element

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9
Q

What are the 3 main subatomic particles?

A

electrons, protons, neutrons

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10
Q

Nucleus

A

protons and neutrons

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11
Q

What charge does the nucleus have?

A

positive

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12
Q

Electron cloud

A

energy levels inhabited by electrons

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13
Q

What is the overall charge of the electron cloud?

A

negative

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14
Q

What does fusion do to atoms?

A

combine

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15
Q

What does fission do to atoms?

A

splits

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16
Q

What does hydrogen fuse into? Where?

A

helium; in the sun

17
Q

What type of temperatures does fusion create?

A

higher temperatures

18
Q

What atoms start the reaction of fission? Where?

A

uranium; at nuclear power plants

19
Q

What does fission create?

A

radioactive waste

20
Q

What is the sun made of?

A

plasma

21
Q

What is the sun’s average rotation?

A

27 days

22
Q

What is the surface temperature of the sun?

A

5500 degrees C; 9932 degrees F

23
Q

What is the interior temp of the sun?

A

15,000,000 degrees C; 27,000,000 degrees F

24
Q

The sun ____________ energy into space.

A

radiates

25
Q

What is the energy that the sun radiates into space called?

A

electromagnetic energy

26
Q

What does electromagnetic energy travel in?

A

radiation

27
Q

What does it mean if energy travels in radiation?

A

travels in straight lines; in rays

28
Q

What takes place in the sun?

A

fusion

29
Q

What energy does the sun mostly emit?

A

ultraviolet, visible light, and infrared waves

30
Q

Cosmic Waves

A

high-energy particles that flow into our solar system

31
Q

What are cosmic waves deflected by?

A

Earth’s magnetic field