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Science > Matter > Flashcards

Matter Flashcards

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1
Q

Alchemists

A

Olden-day ‘chemist’ who mixed chemicals and tried to change ordinary metals into gold

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2
Q

Investigations

A

Activity aimed at finding information

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3
Q

Observations

A

Information by the use of our senses

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4
Q

Scientists

A

People who use experiments to find new things or how something works

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5
Q

Elements

A

Pure substance made up of only one type of atom

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6
Q

Atoms

A

Very small particles that make up everything

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7
Q

Atomic number

A

Number of protons in the nucleus of an atom

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8
Q

Chemical symbol

A

A symbol of the element

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9
Q

Compounds

A

Substance made up of two or more different types of atoms

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10
Q

Bonded

A

Force that holds particles of matter

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11
Q

Mixtures

A

A combination of substances together

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12
Q

Hydrogen

A

The element with the smallest atom

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13
Q

Oxygen

A

A gas in the air that we breath

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14
Q

Group

A

In the periodic table of elements where there are some that are similar

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15
Q

Inert

A

Not reactive

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16
Q

Noble gas

A

Elements in the last column of the table

17
Q

Solid

A

Hard and firm

18
Q

Liquid

A

Flows freely but is of constant volume

19
Q

Gas

A

Air-like fluid substance which expands freely to fill any space available

20
Q

Properties

A

Characteristics or features of an object or substance

21
Q

Diffusion

A

The spreading of one substance through another due to the movement of their particles

22
Q

Volume

A

The amount of space taken up by an object or substance

23
Q

Fluid

A

A substance that flows and has no fixed shape. Gases and liquids are fluids

24
Q

Particle model

A

A description of the moving particles that make up all matter and how they behave

25
Q

Expands

A

Increase in size due to the movement of particles in a substance

26
Q

Contracts

A

Shorten or become smaller in size

27
Q

Melting point

A

The temperature at which a solid substance turns into a liquid

28
Q

Boiling point

A

The temperature at which a liquid changes to a gas

29
Q

Sublimation

A

The change in state from a solid into a gas

30
Q

Precipitation

A

Falling water in solid or liquid form

31
Q

Meteorologist

A

Scientist who uses observation of the atmosphere to predict or explain the weather

Science (9 decks)

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