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Grade 9 science > Unit 1 > Flashcards

Unit 1 Flashcards

(53 cards)

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0
Q

Independent variable

A

The cause

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1
Q

Hypothesis

A

An educated guess about the relationship between the independent and dependent variable

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2
Q

Dependent variable

A

The effect

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3
Q

Controlled variable

A

Is something that always stays the same

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4
Q

HHPS

A

Hazardous household product symbol

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5
Q

WHMIS

A

Workplace hazardous material information system

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6
Q

Mass

A

The amount of particles in an object

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7
Q

Weight

A

The force of gravity acting on an object

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8
Q

Volume

A

The amount of space occupied by an object

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9
Q

Quantitative

A

Observations based on measurements or counting

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10
Q

Solubility

A

How much of a substance can be dissolved in a solvent

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11
Q

Observation

A

A description of an object or event using your senses

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12
Q

Ductility

A

The ability of a substance to be stretched out into a wire-like shape

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13
Q

Malleability

A

The ability of a substance to be moulded or flattened into a sheet

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14
Q

Viscosity

A

The thickness

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15
Q

State of matter

A

A solid liquid or gas

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16
Q

Translucent

A

Half see through

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17
Q

Transparent

A

See through

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18
Q

Opaque

A

Non see-through

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19
Q

Colourless

A

Has no colour

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20
Q

Crystalline

A

Containing the nature of crystals

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21
Q

Form (give an example)

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A

A way of describing every object ex: crystal , powder

22
Q

Inference

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A

An educated guess of what an observation means

23
Q

Clarity

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A

The ability of a substance to transmit light

24
Lustre
The ability of a substance to reflect light
25
Qualitative
Describes measurable characteristics of a substance
26
Line graph (give an example)
Both dependent and independent variables are quantitative example: distance vs time
27
Bar graph (give an example)
One is qualitative and the other is quantitative example: amount of precipitation per month
28
Pie graph (give an example)
One is qualitative and the other one is quantitative and changed to a percentage ex: percentage of students vs favorite type of music
29
Corrosive
A substance capable of exploding or destroying itself
30
Biohazard
A virus or toxic hazard to humans
31
Meniscus
A curved substance
32
What are the steps in a scientific method ?
1. Clearly states a goal or objective 2. Provide an overview or list of materials needed 3. Address any safety procedures that need to be followed 4. Include all the steps for the procedure 5. Use diagrams for clarification is needed 6. The instructions that are completely in step-by-step fashion
33
What are all the six criteria of science?
1. Consistent 2. Observable 3. Natural 4. Predictable 5. Testable 6. Tentative
34
Give a testable question
Does this type of soil make the plant grow faster?
35
Which one is the independent variable: If the amount of sunlight the plant gets increases, then the growth increases
The amount of sunlight
36
Give a proper hypothesis for an experiment
Is the height that the rubber ball is dropped from increases, the height that it bounces up increases
37
What does a rubber stopper do?
It plugs the mouth of the flasks so contents don't spill or evaporate
38
Graduated cylinder
Accurately measures amounts of liquids
39
Bunsen Burner
Produces a flame to heat chemicals
40
Beaker tongs
Safely transport a hot beaker from place to place
41
Retort stand
Clamps will attach to it to hold objects in the air
42
Test tube holder
Used to carry a hot test tube
43
Test tube rack
Holds test tubes
44
Mortar and pestle
Used to crash solids into smaller pieces or powder
45
Ring clamp
Attaches to support stand to hold objects
46
Beaker
Holds Liquids for experiments
47
Scopula
Used to scoop chemicals out of jars
48
Erlenmeyer flask
Holds liquids, if shaken Liquids won't easily spill out
49
Wire gauze
Placed on a ring clamp so a ring clamp can be placed on top
50
Test tube
Can hold small amounts of solids or liquids for experimentation
51
List the names of the 10 safety rules
1. Better safe then sorry 2. Safety glasses 3. Horse play out 4. Clean up all messes 5. Bunsen burner safety 6. Smelling chemicals 7. Heating substances 8. No eating in the classroom 9. Eliminate clutter 10. In case of an emergency
52
What's the difference between HHPS and WHMIS
HHPS is stuff you would find at home and WHMIS is stuff you would find at a workplace

Grade 9 science (3 decks)

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