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Everything > Science > Flashcards

Science Flashcards

1
Q

What’s the job of a nucleus in a cell

A

Carries genes that control the cell

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2
Q

What’s cryptoplast in a cell

A

Watery fluid in which parts of the cell float

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3
Q

What the job of the cell membrane

A

Controls what enters and exits the cell

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4
Q

What’s the job of the ribosomes

A

Makes protein

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5
Q

Whats the job of mitochondria

A

Releases energy from food

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6
Q

What the job of chloroplast in a plant cell

A

Contains a green pigment ( chlorophyll) this is where photosynthesis occurs

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7
Q

What’s the job of the vacuole in a plant cell

A

Stores food and water

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8
Q

What’s the job of a cell wall

A

Provides protection, shape and structure

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9
Q

What do do you have to do to find the volume

A

Length x width x height

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10
Q

What the definition of volume

A

The amount of space an object takes up

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11
Q

How to find the mass

A

Use the mass balance

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12
Q

Mass definition

A

The amount of material in an object

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13
Q

How to find the density of something

A

Mass ➗ volume

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14
Q

What are the three states of matter

A

Gas, solid and liquid

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15
Q

Definition of atoms

A

Smallest particle of matter ( makes up everything)

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16
Q

Definition of molecules

A

Two atoms bonded together

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17
Q

Element

A

Molecules of only one type of atom

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18
Q

Compound

A

Molecules of more than one type of atom

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19
Q

What’s the 6 stages in the scientific method

A

Observe
Research
Hypothesis
Experiment
Conclusion
Share results

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20
Q

What does independent variable mean

A

It is a factor I change to see what happens

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21
Q

What is a dependent variable

A

It is a factor I measure in response to the change I made

22
Q

What is the control group

A

No change made to the independent variable and measure what happens to the dependent variable

23
Q

What is fair testing

A

Only changing one variable at a time . Everything else remains the same

24
Q

Draw a graph on paper

A

Draw a graph

25
Q

What is quantitive data

A

A quantity can be measured e.g distance, weight, time

26
Q

What is qualitative

A

A record of the qualities of something e.g texture, flavour,emotion.

27
Q

What is the s.i unit for time

A

Seconds

28
Q

What is the s.i unit for distance

A

Metre

29
Q

What is the s.i unit for area

A

Metre squared

30
Q

What is the s.i unit for volume

A

Metre cubed or litres

31
Q

What is the s.i unit for mass

A

Kilograms

32
Q

What is the s.i unit for temperature

A

Degrees Celsius

33
Q

What is a meniscus

A

Read volume from the bottom of meniscus

34
Q

Definition of density

A

Describes how tightly matter is compacted together in a substance

35
Q

What the characteristics of a living thing

A

M= movement
R= respiration
S= sensitivity
N = nutrition
E=excretion
R= reproduction
G= growth

36
Q

What the job of the nucleus

A

Carries genes that control the cell

37
Q

Mitochondria

A

Releases energy from food

38
Q

Ribosomes

A

Makes protein

39
Q

Cytoplasm

A

Watery fluid In which parts of the cell float

40
Q

Cell membrane

A

Controls what enters and exits the cell

41
Q

Chloroplast

A

Green pigment

42
Q

Cell wall

A

Provides protection, shape and structure

43
Q

Large vacuole

A

Stores food and water

44
Q

What are the three states of matter

A

Gas, Liquid and solids

45
Q

What’s an atom

A

Smallest part of a chemical element ( makes up everything )

46
Q

Element

A

Is a substance that contain more than one atom but thyre all the same

47
Q

Compound

A

Is a substance that contains more than one type of atom

48
Q

What’s a physical change

A

Doing something to the material

49
Q

What’s chemical change

A

Chemical reaction that cannot be reversed

50
Q

Draw a diagram of the two cells and label

A

….

51
Q

What’s an independent variable

A

A variable I change to see what happens

52
Q

What a dependent variable

A

Variable I measure in response to the change I made

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