Science Unit B - Matter And Chemical Change (Section 1.0)

Front 1

What is matter?

Back 1

Anything that has mass and occupies space.

Front 2

What are the common hazard warnings?

Back 2

Flammable, toxic, explosive, irritant, corrosive, biological, and electrical.

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Back 3

Electric

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Back 4

Toxic

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Back 5

Flammable

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Back 6

Explosive

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Back 7

Irritant

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Back 8

Corrosive

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Back 9

Biological

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Back 10

Means Caution

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Back 11

Means Warning

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Back 12

Means Danger

Front 13

What does WHIMIS stand for?

Back 13

Workplace Hazardous Materials Information System

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Back 14

Compressed gas, WHIMIS.

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Back 15

Dangerously reactive material, WHIMIS.

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Back 16

Oxidizing Material, WHIMIS.

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Back 17

Poisonous and infectious causing immediate and serious toxic affects, WHIMIS.

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Back 18

Poisonous and infectious causing other toxic affects, WHIMIS.

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Corrosive material, WHIMIS.

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Flammable and combustable material, WHIMIS.

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Biohazardous infectious material, WHIMIS.

Front 22

What are the states of matter?

Back 22

Solid, liquid, and gas.

Front 23

A change from solid to liquid is..

Back 23

MELTING.

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A change from liquid to gas is..

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EVAPORATION OR VAPORIZATION.

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A change from a gas to a liquid is..

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CONDENSATION.

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A change from a liquid to a solid is..

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FREEZING.

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A change from a solid to a gas is..

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SUBLIMATION.

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A change from a gas to a solid is..

Back 28

DEPOSITION.

Front 29

What are properties?

Back 29

Characteristics that can be used to describe a substance.

Front 30

All mater has _ types of properties, and name them.

Back 30

2, physical and chemical.

Front 31

Examples of physical properties of matter?

Back 31

Hardness, lustre, density, solubility, ductility, CONDUCTIVITY, etc..

Front 32

MELTING POINT

Back 32

The melting point of a substance is the temperature at which it changes from a solid to a liquid.

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BOILING POINT

Back 33

The boiling point of a substance is the temperature at which its liquid phase changes to the gasphase.

Front 34

HARDNESS

Back 34

Hardness is a substance’s ability to resist being scratched. Hardness is usually measured on theMohs’ hardness scale from 1 to 10. The mineral talc is the softest substance on the scale (1).Diamond is the hardest (10).

Front 35

Malleability

Back 35

A substance that can be pounded or rolled into sheets is said to be malleable.

Front 36

Ductility

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Any solid that can be stretched into a long wire is said to be ductile. EX - COPPER

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Crystal shape

Back 37

The shape of a substance’s crystals can help identify it. Silicon crystals, for example, are diamondshaped.

Front 38

Solubility

Back 38

The ability of a substance to be dissolved in another.

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Density

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The amount of mass in a given volume of a substance.

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Conductivity

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The ability of a substance to conduct electricity or heat. A substance that conductselectricity or heat is called a conductor. A substance with little or no conductivity is an insulator.

Front 41

FOR FUN, what is Moh's hardness scale?

Back 41

Talc, Gypsum, Calcite, Fluorite, Apatite, Feldspar, Quartz, Topaz, Corundum, Diamond

Front 42

What does a chemical property describe?

Back 42

It describes how a substance interacts with other substances, such as acids.

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A chemical change always results in...

Back 43

The formation of a different substance or substances.

Front 44

What is a colloid?

Back 44

Also a cloudy mixture, but the particles of the suspended substance are so small they cannot be easily separated out from the other substance. Examples - milk and ketchup.

Front 45

What's a pure substance?

Back 45

A pure substance is made of only one kind of matter, and had a unique set of properties that sets it apart from any other kind of latter.

Front 46

A pure substance may either be an ___ or a ___.

Back 46

ELEMENT OR COMPOUND

Front 47

What is an element?

Back 47

A material that cannot be broken down into any simpler substance. Basically the building blocks for all compounds.

Front 48

How is a compound formed?

Back 48

When two or more elements combine chemically, in fixed and specific proportions.

Front 49

What is a mixture?

Back 49

A combination of pure substances. However, unlike compounds, they do not combine chemically.

Front 50

Explain a mechanical mixture

Back 50

The different substances that make up the mix are visible. Examples - soil, mixed vegetables. All HETEROGENEOUS.

Front 51

Explain a solution

Back 51

The different substances are not separately visible, one substance is dissolved into another, creating what looks like one HOMOGENEOUS substance. Examples - sugar in hot coffee, carbon dioxide gas in water to make carbonated pop.

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Chemists call a substance dissolved in water an..

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Aqueous solution !¡!

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What is a suspension?

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A cloudy mixture in which tiny particles of one substance are held within another m. Example - tomato juice

Front 54

A chemical change always results in...

Back 54

The formation of a different substance or substances.

Front 55

What is a colloid?

Back 55

Also a cloudy mixture, but the particles of the suspended substance are so small they cannot be easily separated out from the other substance. Examples - milk and ketchup.

Front 56

What is a physical change?

Back 56

When a material changes from from one state to another. It can also change back to its original state.

Front 57

What's a chemical change?

Back 57

Occurs when two or more materials reach and create new materialsz

Front 58

What's a pure substance?

Back 58

A pure substance is made of only one kind of matter, and had a unique set of properties that sets it apart from any other kind of latter.

Front 59

A pure substance may either be an ___ or a ___.

Back 59

ELEMENT OR COMPOUND

Front 60

What is an element?

Back 60

A material that cannot be broken down into any simpler substance. Basically the building blocks for all compounds.

Front 61

How is a compound formed?

Back 61

When two or more elements combine chemically, in fixed and specific proportions.

Front 62

What is a mixture?

Back 62

A combination of pure substances. However, unlike compounds, they do not combine chemically.

Front 63

Explain a mechanical mixture

Back 63

The different substances that make up the mix are visible. Examples - soil, mixed vegetables. All HETEROGENEOUS.

Front 64

Explain a solution

Back 64

The different substances are not separately visible, one substance is dissolved into another, creating what looks like one HOMOGENEOUS substance. Examples - sugar in hot coffee, carbon dioxide gas in water to make carbonated pop.

Front 65

Chemists call a substance dissolved in water an..

Back 65

Aqueous solution !¡!

Front 66

What is a suspension?

Back 66

A cloudy mixture in which tiny particles of one substance are held within another m. Example - tomato juice

Front 67

Examples of chemical changes

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Changes in colour, odour, state, or thermal energy during, or as a result of,the reaction between the original substances.

Front 68

EXAMPLES OF CHEMICAL PROPERTIES OF MATTER

Back 68

• reaction with acids

• ability to burn

• reaction with water

• behaviour in air

• reaction to heat