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Science Flashcards

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1
Q

What is an element made of

A

An element is made up of only one type of atom

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2
Q

What is a mixture made of

A

A mixture is made of more than one type of substance that has not reacted

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3
Q

What is a compound

A

A compound is made of more than one atom joined together

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4
Q

What is a molecule

A

A molecule is a small group of atoms bonded together

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5
Q

Is carbon dioxide a mixture or compound

A

It is a compound because it is made up of one carbon atom and 2 oxygen atoms

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6
Q

Define sublimation

A

Solid to gas

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7
Q

Define reverse sublimation/deposition

A

Gas to solid

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8
Q

What is solid to gas

A

Sublimation

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9
Q

What is gas to solid

A

Reverse sublimation/deposition

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10
Q

Another word for precipitation

A

Rain

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11
Q

Another word for collection

A

Accumulation

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12
Q

What is a solute

A

A solid you are trying to dissolve

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13
Q

What is a soluble

A

A substance that can be dissolved

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14
Q

What is a Solution

A

A solution is made when a solute is dissolved in a solvent

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15
Q

Solvent

A

Liquid you are trying to dissolve it into

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16
Q

Define physical change

A

A physical change is reversible change which can be separated back into its original substance. In physical change state changes only occur and no new substance are made

17
Q

Chemical change

A

New substances are made by rearranging the atoms of existing substances by breaking old bonds to form new bonds

18
Q

Signs of chemical change

A

Change of color, bubbling, gas forming, heat)

19
Q

What is an independent variable

A

Change this to see what happens

20
Q

Control variable

A

Factor we keep that same

21
Q

Dependent variable

A

Measure this to write a conclusion

22
Q

What is the process of the water cycle

A

Evaporation-condensation-precipitation-collections-runoff

23
Q

Maori names for the water cycle

A

WaI maori, waI mate, papatuanuku, waI tai, waI ora

24
Q

Is a change of state physical or chemical

A

A chang of state is physical change as it is reversible

25
Q

What is matter

A

Tiny particles that make up the living world

26
Q

Define intermolecular forces

A

Attraction between particles

27
Q

Define state

A

Different ways particles can be rearranged (solid,liquid,gas)

28
Q

Attraction between particles

A

The state of a substance depends on how strongly the particles are attracted to each other and how much energy they have

29
Q

What happened when a substance gains or loses energy

A

As a substance gains or loses energy the substance can change star from solid to liquid to gas

30
Q

Kino….

A

Ora,maori,kino,mate,tai,tapu

Science (2 decks)

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