Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Grade 9 Science > Unit 2: Properties Of Matter > Flashcards

Unit 2: Properties Of Matter Flashcards

You may prefer our related Brainscape-certified flashcards:
Biology 101 flashcards
1
Q

Matter

A

Anything that has mass and takes up space (not counting energy)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Physical property

A

Anything that can be observed and/or measured without changing the chemical

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Qualitative

A

Properties that can be observed with 5 senses

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Quantitative

A

Measured and described by using numbers

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

The 3 states of matter

A

Solid, liquid and gas

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Lustre

A

Able to reflect light

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Optical clarity

A

How much light can go through

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Transparent, translucent and opaque

A

All light goes through, a bit of light, and no light goes through

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Transparent, translucent, and opaque

A

All light, bit of light and no light can go through it

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Viscosity

A

How thick a liquid flows

Ex:
Water: non viscous
Honey: viscous

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Hardness

A

Ability to resist scratching
Assigned a scale (1-10) : quantitative description

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Malleability

A

A material able to be hammered into thin sheets
Malleable vs non-Malleable (brittle)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Ductility

A

Ability to be drawn into wires

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Electrical conductivity

A

Ability to allow electricity to flow through
Conductive vs non-conductive (inculcating)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Colour

A

Appearance of object depending of light reflecting and/or absorbed

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Odour

A

The way matter smells (reminder to waft)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Texture/touch

A

The way matter feels

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Chemical Property

A

When a substance is created or is chemically changing

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Example of chemical properties

A

Flamability, reactivity with water, reactivity with other chemicals, toxicity, types of chemical bonds with its form, PH

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Flammability

A

The ability to burn

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Chemical property: Reaction with water

A

The ability for material to act with water

22
Q

Chemical property: reaction with acid

A

The ability for materials to act with acid

23
Q

The difference between physical and chemical properties

A

A physical property is anything that can be observed and/or measured without changing the property(s) itself

A physical property is the ability to change or create a new substance

24
Q

Difference between physical/chemical PROPERTY and physical/chemical CHANGE

A

The property is what type it is

The change is the reasoning behind it and the examples for the reasons

25
Q

Density

A

A measure of the amount of mass (matter) per unit of volume

26
Q

Density is… quantitative/qualitative

A

Density is the example of a quantitative physical property

27
Q

Equation for density

A

Mass ÷ volume = density

M / V = D

28
Q

Units for density

A

The units for density can be g/mL or g/cm³
Depending on the specific problem

29
Q

How to solve for mass

A

• Multiply both sides by V (Volume)

• Cancel out the v on the right side of the equation top and bottom

• Rewrite so that the variable you are solving for is on the left side

• Multiply Density and Volume to get Mass

30
Q

How to solve for volume

A

• Divide both sides by D

• Cancel D out on the right side of the equation (top and bottom)

• Rewrite so that the variable you are solving for is on the left

• Divide the Mass by Density to get Volume

31
Q

The 2 categories matter can be broken into

A

Pure substances and mixtures

32
Q

Homogeneous

A

• Mixtures that are of uniform composition throughout
• only one phase is visible

33
Q

Heterogeneous

A

• mixtures that are not of uniform composition throughout
• more than one phase is visible

34
Q

Homogeneous mixture: solutions

A

A mixture up of a solute and solvent

35
Q

Solute and solvent

A

• The substance that is dissolved

• The substance that does the dissolving

36
Q

Alloys

A

2+ solids mixed together

37
Q

All solutions are homogeneous (T/F)

A

True

38
Q

Types of heterogeneous mixtures

A

Ordinary Mechanical Mixtures (Mechanical)

Suspension

39
Q

Ordinary Mechanical Mixtures (Mechanical)

A

A mixture where you can see the (2+) seperate particles

Examples: veggie soup, snack mix, soil

40
Q

Suspensions

A

A cloudy mixture that the (2+) substances seperate after being left alone

Examples: Sand & Water, Oil & Water

41
Q

Mechanical Mixtures are mostly:

Homogeneous/Heterogeneous

A

Heterogeneous (not uniform, 2+ visible)

42
Q

Pure Substance

A

Made of 1 type of particle and cannot be separated

43
Q

Types of Pure Substances

A

Element and Compounds

44
Q

Element

A

An element on the periodic table, cannot be broken down simpler (physical or chemical)

45
Q

Atoms

A

Smallest unit of measurement of an element, has all properties of the element(s)

46
Q

Compounds

A

Formed by 2+ elements joined together

47
Q

Molecule

A

The smallest part of a compound

48
Q

Example of a compound & the molecule it made

A

Water (H²O)

Made up of: 2 hydrogen atoms + 1 oxygen atom = one carbon dioxide (CO²) molecule

49
Q

Chemical formula

A

The formula to make a compound and the molecule (when the elements mix into eachother)

50
Q

Law of Definite Porportions

A

That compounds are pure substances made up of 2+ elements together on definite ratios

Example: water will always be 2 hydrogen and 1 oxygen (this cannot change, since it would no longer be water)

51
Q

Particle Theory

A
  1. All matter is made up of tiny particles that have space between them
  2. Different substances that are made up of different kinds of particles
  3. The particles that are in constant random motion
  4. The particles of a substance move faster as its temperature increases
  5. Particles attract each other

Grade 9 Science (8 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions