4th Grade Science Test 5 Flashcards

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1
Q

How much of the earth is covered by water

A

three fourths

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2
Q

What is anything the takes up space and has weight

A

matter

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3
Q

What are the smallest piece of a substance that still has the qualities of that substance?

A

molecules

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4
Q

What makes up water?

A

hydrogen and oxygen

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5
Q

Molecules in which state (solid, liquid, gas) are packed close together?

A

solid

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6
Q

Molecules in which state (solid, liquid, gas) are the fastest-moving molecules?

A

gas

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7
Q

Water has a high ___, that allows object to float on it.

A

surface tension

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8
Q

Water changes to ice at what temperature?

A

32 degrees Fahrenheit

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9
Q

What causes molecules to move more rapidly?

A

heat

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10
Q

Solid, Liquid, Gas or Not Matter: air

A

gas

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11
Q

Solid, Liquid, Gas or Not Matter: ice

A

solid

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12
Q

Solid, Liquid, Gas or Not Matter: patriotism

A

not matter

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13
Q

Solid, Liquid, Gas or Not Matter: milk

A

liquid

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14
Q

Solid, Liquid, Gas or Not Matter: tree trunk

A

solid

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15
Q

Solid, Liquid, Gas or Not Matter: water vapor

A

gas

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16
Q

Solid, Liquid, Gas or Not Matter: your soul

A

not matter

17
Q

Solid, Liquid, Gas or Not Matter: steam

A

gas

18
Q

Solid, Liquid, Gas or Not Matter: hydrogen

A

gas

19
Q

Solid, Liquid, Gas or Not Matter: paper

A

solid

20
Q

What is the ability to do work?

A

energy

21
Q

What is a push or pull on an object?

A

force

22
Q

What is the force which draws things down toward the center of the earth?

A

gravity

23
Q

What supplies the energy in steam?

A

heat

24
Q

What gas makes up most of the air?

A

nitrogen

25
Q

How far does the atmosphere extend?

A

1,000 miles

26
Q

What does the weight of the atmosphere create?

A

air pressure

27
Q

What is the process by which liquid water becomes water vapor?

A

evaporation

28
Q

What is the process of changing water vapor back into liquid water called?

A

condensation

29
Q

Know what these kinds of cloud look like. Look in your book or on a worksheet.

A

cirrus
cumulus
stratus

30
Q

What is a rain or storm cloud called?

A

nimbus

31
Q

What is any form of water that falls from clouds to earth?

A

precipitation

32
Q

What is the amount of water vapor in the air?

A

humidity

33
Q

What is the frozen water vapor formed in clouds?

A

snow

34
Q

What is the temperature at which water condenses?

A

dew point

35
Q

What is a large body of air that has the same temperature and humidity?

A

air mass

36
Q

What is the temperature at which water boils?

A

212 degrees Fahrenheit

37
Q

What are frozen raindrops that have been blown back into the cloud to form more frozen layers?

A

hail

38
Q

What is a cloud on the ground?

A

fog

39
Q

Be able to recognize these birds. Look them up.

A

California gull

common loon