Christmas Test Prep 2024

Question 1

Whats the function of the cell membrane?

Answer 1

Controls what exits and enters the cell

Question 2

Whats the function of the nucleus?

Answer 2

Carrie genes that control cell activities

Question 3

What is the function of cytoplasm?

Answer 3

Watery fluid where parts of the cell float and chemical reactions take place

Question 4

What is the definition of a hypothesis

Answer 4

An educated guess

Question 5

What’s an independent variable?

Answer 5

A factor you change in an experiment to see what happens

Question 6

What’s a dependent variable?

Answer 6

A factor you measure in response to the change you made

Question 7

If one variable affects the other, then do they have?

Answer 7

A relationship.

Question 8

What’s the control of an experiment?

Answer 8

The group where a variable isn’t being tested.

Question 9

What’s a fair test?

Answer 9

An experiment that only changes one variable at a time.

Question 10

How many times should you repeat and experiment for reliable results?

Answer 10

You should repeat it three times.

Question 11

What are ethical considerations in an experiment?

Answer 11

Moral choices

Question 12

What is quantitative data?

Answer 12

A quantity that can be measured eg. Distance

Question 13

What is qualitative data?

Answer 13

A record of the qualities of something, eg. Flavour

Question 14

What is SALT for a graph?

Answer 14

S- scale…is the scale suitable?
A- axis…are the intervals equal?
L- label…are the axes labeled, is there a unit of measurement?
T-title…what is the graph’s purpouse?

Question 15

Which axis on a graph does the dependent variable go on?

Answer 15

The Y axis (vertical)

Question 16

Which axis on a graph does the independent variable go on?

Answer 16

The X axis (horizontal)

Question 17

What’s a zero error?

Answer 17

When a measuring instrument doesn’t start at zero.

Question 18

What’s a parallax error?

Answer 18

When a scale is read from the wrong angle.

Question 19

What measurement instrument would you use to measure a small curved line?

Answer 19

An opisometer

Question 20

What measurement instrument would you use to measure something like the diameter of a ring?

Answer 20

Vernier Callipers

Question 21

What is temperature?

Answer 21

The measurement of how hot or cold an object is.

Question 22

What is mass?

Answer 22

Mass is the amount of matter in an object?

Question 23

What is volume?

Answer 23

The measurement of how much space an object takes up

Question 24

If your reading volume from a graduated cylinder, what do you need to do?

Answer 24

You need to become eye level with the meniscus and read it from there.

Question 25

What is the formula to calculate the volume of a cuboid?

Answer 25

The length x width x height

Question 26

How do you calculate density?

Answer 26

The mass divided by the volume

Question 27

How do you calculate volume?

Answer 27

The mass divided by the density.

Question 28

How do you calculate mass?

Answer 28

Density times volume

Question 29

Will an object sink in a liquid it is denser than?

Answer 29

Yes, it will sink.

Question 30

What are the seven characteristics of a living thing?

Answer 30

1. Movement 2.respiration 3.sensitivity 4.nutrition 5.Excretion 6.reproduction 7. Growth

Question 31

What is respiration?

Answer 31

Release of energy from food

Question 32

What is excretion?

Answer 32

Release of waste

Question 33

What is a group of cells called?

Answer 33

A tissue

Question 34

What is a group of tissue called?

Answer 34

An organ

Question 35

Whats a group of organs called?

Question 36

What’s a group of systems called?

Answer 36

An organism

Question 37

What’s an organism?

Answer 37

A living thing

Question 38

What is the function of cytoplasm?

Answer 38

A watery fluid in which the parts of the cell float, also where chemical reactions take place.

Question 39

That’s the function of mitochondria?

Answer 39

Releases energy from respiration

Question 40

What’s the function of ribosome?

Answer 40

Makes proteins eg.hormones

Question 41

What’s the function of chloroplast?

Answer 41

Contains a green pigment called chlorophyll this is where photosynthesis occurs.

Question 42

What’s the function of the cell wall?

Answer 42

Provides protection, shape and structure.

Question 43

What’s the large vacuole used for?

Answer 43

Storing food and water

Question 44

Do plant cells contain the same ribosomes as animal cells?

Answer 44

Yes

Question 45

What are the parts of the animal cell?

Answer 45

1. Cytoplasm 2.nucleus 3.cell membrane 4.ribosomes 5.mitochondria

Question 46

What are the parts of a plant cell?

Answer 46

1. Nucleus 2. Cytoplasm 3.cell membrane 4.mitochondria 5.ribosomes 6.chloroplasts 7.large vacuole 8.cell wall

Question 47

What are the steps of creating a slide?

Answer 47

1. Clean the slide 2. Out a drop of iodine on top 3.peel a piece of onion, and put it flat on the slide 4.place the coverslip on top at 45 degree angle for no bubbles

Question 48

What would you stain a cheek cell with?

Answer 48

Methylene Blue

Question 49

What are the three types of matter?

Answer 49

1. Gas 2. Liquid 3. Solid

Question 50

Does air have a mass?

Answer 50

Yeeeeeesssssssss

Question 51

What’s an atom?

Answer 51

The smallest part of a chemical element

Question 52

What’s an element?

Answer 52

A substance that contains only one type of atom

Question 53

What’s a molecule?

Answer 53

A group of atoms joined together

Question 54

When writing an element which of the letters is capitalised?

Answer 54

The first

Question 55

What is a chemical change?

Answer 55

When atoms change in a different way to give us a new substance called a compound

Question 56

What is a physical change?

Answer 56

When atoms form in a new way to give us a mixture, but not a new substance

Question 57

What is a mixture?

Answer 57

A mixture is two or more different substances that are physically mixed and the change can be easily reversed