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Science term 3 Year 8 > Exam Revision > Flashcards

Exam Revision Flashcards

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Biology 101 flashcards
1
Q

atom

A

The smallest particle
of an element

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2
Q

atomic number

A

The number by which
elements are ordered in the
periodic table

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3
Q

boiling point

A

The temperature at which
a substance change from
liquid to gas

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4
Q

brittle

A

Easily broken

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5
Q

chemical bond

A

An attractive force that
holds two atoms together

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6
Q

chemical formula

A

A symbol that shows the
chemical composition
of a substance

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7
Q

chemical reaction

A

The re-arrangement of
atoms to form one or more
new substances

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8
Q

chemical symbol

A

One or two letters used to
represent an element

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9
Q

compound

A

A substance made up of
two or more types of atom
bonded together

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10
Q

element

A

A substance made up of
only one type of atom

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11
Q

group

A

A column in the periodic
table

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12
Q

lattice

A

A repeating arrangement of
atoms in a solid

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13
Q

Malliable

A

Able to be hammered
or pressed into shape
without breaking

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14
Q

melting point

A

The temperature at which
a substance changes from
solid to liquid

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15
Q

metal

A

A shiny element that
conducts heat and electricity

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16
Q

mixture

A

A combination of
substances that can be
physically separated

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17
Q

molecule

A

A group of atoms bonded
together

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18
Q

noble gas

A

An element that is highly
non-reactive

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19
Q

non-metal

A

An element that typically
does not conduct heat
or electricity

20
Q

non-reactive

A

Tending not to chemically
interact with other
substances

21
Q

period

A

A row in the periodic table

22
Q

periodic table

A

A grid arrangement of all
known chemical elements

23
Q

pure substance

A

A single substance without
anything mixed in

24
Q

reactive

A
25
Q

chemical bond

A

An attractive force that
holds two atoms together

26
Q

chemical change

A

A change in matter
that forms one or more
new substances

27
Q

combustion

A

A chemical change where a
substance burns

28
Q

condensation

A

A physical change from
a gas to a liquid

29
Q

deposition

A

A physical change from
a gas to a solid

30
Q

digestion

A

The breakdown of
food by physical and
chemical changes

31
Q

dissolving

A

A physical change where a
solid spreads through a liquid

32
Q

endothermic
reaction

A

A reaction that absorbs heat

33
Q

evaporation

A

A physical change from
a liquid to a gas

34
Q

exothermic
reaction

A

A reaction that releases heat

35
Q

fuel

A

Any substance that can burn

36
Q

gas

A

A substance with no fixed
shape or volume

37
Q

liquid

A

A substance with a fixed
volume that flows and
changes shape

38
Q

melting

A

A physical change from a
solid to a liquid

39
Q

matter

A

Any substance that takes up
space and has mass

40
Q

mixing

A

A physical change where
two or more substances
are combined

41
Q

particle

A

An atom or molecule

42
Q

physical change

A

A change in matter that does
not form new substances

43
Q

rusting

A

A chemical change where
iron combines with oxygen
and water

44
Q

solid

A

A substance with a fixed
shape and volume

45
Q

solidification

A

A physical change from a
liquid to a solid

46
Q

state of matter

A

One of the forms that
matter can take, such as
solid, liquid or gas

47
Q

sublimation

A

A physical change from a
solid to a gas

Science term 3 Year 8 (1 decks)

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