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MARY > Grade 5 - Properties of Matter > Flashcards

Grade 5 - Properties of Matter Flashcards

1
Q

True or False: All forms of matter doesn’t exhibit properties.

A

False:
All forms of matter exhibit properties.

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2
Q

The properties can be classified as _______ or ______.

A

physical
chemical

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3
Q

Matter may be classified as _____ or _____.

A

pure substance
mixture

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4
Q

___ may be an element or a compound.

A

Pure substance

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5
Q

Is the simplest form of a substance. It consists of only one kind of atom.

A

element

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6
Q

True or False: Each element has characteristic properties and is represented by a chemical symbol.

A

True

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7
Q

Elements may chemically combine to form a _____.

A

compound

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8
Q

A ______ consists of two or more different elements. It is represented by a chemical formula.

A

compound

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9
Q

A ______ is another classification of matter. It consists of two or more components that are not chemically combined.

A

mixture

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10
Q

True or False: The individual components of a mixture retain their characteristic properties.

A

True

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11
Q

______ are properties that can be measured or observed without changing the basic identity of an object.

A

Physical properties

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12
Q

The physical properties include?

A

mass
volume
weight
color
temperature
shape
texture
magnetism
density
solubility in water
strength
durability
resistance to water

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13
Q

_____ is the amount of matter in an object. It is usually expressed in grams (g) and kilograms (kg).

A

Mass

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14
Q

Different types of balances that are used to measure mass.

A

spring balance
platform balance

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15
Q

_____ is the pull of gravity on Earth.

A

Weight

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16
Q

The pull of gravity indicates _____.

A

force

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17
Q

The unit used to express weight is _______.

A

newton (N)

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18
Q

The unit used to express weight which was named after the great physicist.

A

Sir Isaac Newton

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19
Q

_____ is the amount of space occupied by an object.

A

Volume (V)

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20
Q

Volume (V) is usually expressed in ?

A

cubic centimeters (cm3)
milliliters (mL)
liters (L)

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21
Q

Liquid volume may be measured using a _______.

A

graduated cylinder

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22
Q

A ______ is the curve on the surface of a liquid.

A

meniscus

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23
Q

True or False: The reading of volume must always be taken at eye level and at the lowest level of meniscus.

A

True

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24
Q

The volume of an irregularly shaped object can be measured using the ______.

A

water displacement method.

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25
Q

The volume of a regularly shaped object can be measured using a ________.

A

mathematical formula

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26
Q

Formula: Volume of a cube.

A

V= s x s x s

s = sides

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27
Q

Formula: Volume of a rectangular solid

A

V= l x w x h

l = length
w= width
h= height (thickness)

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28
Q

Is another physical property of objects. It describes how much matter (mass) is in a given volume.

A

Density (D)

29
Q

The _____ of an object also determines whether it will float or sink in water.

A

density

30
Q

The formula for Density (D).

A

D = M/V

M = mass
V = volume

31
Q

True or False: The unit for density will depend on the units used for mass and volume.

A

True

32
Q

Is another physical property of matter. It refers to hotness and coldness of an object.

A

Temperature (T)

33
Q

Temperature (T) can be measured directly using a ______.

A

Thermometer

34
Q

Temperature may be expressed in different units:

A

degree Celsius (℃)
degree Fahrenheit (℉)
Kelvin (K)

35
Q

Formula: ℉ to ℃

A

℃ = ℉-32 / 1.8

(refer to page 31 of your book)

36
Q

Formula: ℃ to ℉

A

℉ = (℃ x 1.8) +32

37
Q

Formula: ℃ to K

A

K = ℃ + 273

38
Q

Pure substances have characteristic properties such as _______ and ________.

A

boiling point
freezing/melting point

39
Q

Is the temperature at which a liquid gains enough energy to boil and become gas.

A

Boiling point

40
Q

Is the temperature at which a liquid starts to solidify or a solid starts to melt.

A

Freezing point or melting point

41
Q

True or False: All forms of matter have properties that can be observed using the five senses.

A

True

42
Q

When you describe the shape, size, color, taste, and smell of an object, you are giving its?

A

physical properties

43
Q

Is the ability of a solid to return to its original shape after being distorted.

A

Elasticity

44
Q

Is the ability of a solid to bend easily without breaking.

A

Flexibility

45
Q

Refers to the ability of metal to be drawn into wire.

A

Ductility

46
Q

Is the ability of a material to be easily broken into pieces.

A

Brittleness

47
Q

Is the ability of a metal to be hammered or rolled into sheets.

A

Malleability

48
Q

Is the ability of a metal to resist being easily scratched or worn away.

A

Hardness

49
Q

A characteristic of a substance that describes its ability to change into a new substance.

A

chemical property

50
Q

To observe a chemical property, the substance must undergo a _____.

A

chemical change

51
Q

The ability of materials that will burn easily is called.

A

flammability

52
Q

Materials that are easily burn are called?

A

flammable materials

53
Q

Occurs when oxygen is combined with a substance.

A

Oxidation

54
Q

In the presence of water, Iron reacts with oxygen to form _____.

A

rust

55
Q

True or False: Rust is a different substance from iron nail.

A

True.

56
Q

True or False: Some substances corrode when they react with acid. Acid rain corrodes buildings, monuments, and other structures.

A

True

57
Q

How does rain becomes acid rain.

A

When the rainfall that has become acidic. It is produced when sulfur dioxide and nitrogen oxide react with water vapor in the atmosphere.

58
Q

The property of some substances that causes harm to humans or animals is called?

A

toxicity

59
Q

True or False: Toxic substances are hazardous to health. Mercury is a toxic substance, when inhaled or injected, mercury causes brain damage.

A

True

60
Q

True or False: Waste materials harm the environment and all the living things in it.

A

True

61
Q

The first step in keeping your environment clean and safe.

A

Sorting waste materials.

62
Q

The 5Rs of waste management?

A

reducing
reusing
recycling
repairing
recovering

63
Q

Examples of reducing in waste management.

A

Using durable and reusable products instead of disposable ones.

Use ceramic plates and cups in place of those made from plastic or paper.

Dry dishes using a clean cloth rather than paper towels, or use cloth napkins instead of paper napkins.

64
Q

Examples of reusing in waste management.

A

Glass and plastic bottles, particularly those with beautiful shapes and forms, can be reused by turning them into decorative items. They can also be repurposed as containers for sewing materials such as threads, needles, buttons and pins, or as holders for some school materials such as rulers, pens, pencils, and scissors.

Old clothes, toys, appliances, and furniture can be sold or donated to charities.

65
Q

Examples of recycling in waste management.

A

Glass, metal waste, and plastic waste may be packaged separately and sold in some collection centers, such as junk shops. These are then sold to other companies that process, remanufacture, and sell them as new materials.

Old colored magazines can be recycled into bags and old tires can be repurposed into furniture such as chairs.

66
Q

Examples of repairing in waste management.

A

Damaged appliances or furniture that can be repaired should not be discarded.

Damaged appliances that are to be replaced or old appliances can be given away to people who are willing to accept them and have them repaired.

67
Q

Examples of recovering in waste management.

A

Some of the components of appliances, machines and furniture can be recovered and reused.

Wood, screws, or nails can be removed and reused.

Concerned groups collect used batteries in order to recover metals that can be recycled.

68
Q

Is the building block of matter?

A

Atom

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