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Yr 8 Quizizz 5 - C3 & B3

Total questions: 21

Worksheet time: 13mins

Name
Class
Date
1.

The mode score on science test was 94! Which of these interpretations must be correct?

a)
99 was the highest score on the test.
b)
More students received a 94 than any other score
c)
No student scored below a 50
d)
A score of 91 was slightly below average.
2.
On a graph, which axis shows the dependent variable?
a)
x-axis
b)
y-axis
c)
neither
d)
it changes
3.

a solution with a pH value less than 7.

a)
acid
b)
decomposition
c)
balanced symbol equation
d)
weak acid
e)
thermite reaction
4.

a soluble base.

a)
alkali
b)
endothermic reaction
c)
chemical reaction
d)
word equation
e)
universal indicator
5.
A change in which atoms are rearranged to create new substances.
a)
chemical reaction
b)
thermal decomposition
c)
conservation of mass
d)

chemical solution

e)
word equation
6.

Substances used to identify whether unknown solutions are acidic or alkaline. The colour is different in acidic and alkaline solutions.

a)
indicator
b)
chemical symbol
c)
acid
d)
exothermic reaction
e)
decomposition
7.

A reaction where an acid cancels out a base or a base cancels out an acid.

a)
neutralisation
b)
irritant
c)

chemical decomposition

d)
chemical reaction
e)
alkali
8.
A graph that is drawn when one of the data sets is discontinuous (discrete) or categoric data.
a)
bar chart
b)
anomalous
c)
x-axis
d)
variable
e)
valid conclusion
9.

Respiration takes place in

a)

the cells

b)

the lungs

c)

the heart

d)

the brain

10.

Do plant cells carry out respiration

a)

Yes

b)

No

11.
What are the products of anaerobic respiration?
a)
Glucose and oxygen
b)
Carbon dioxide and water
c)
Lactic acid
d)
Carbon monoxide
12.

Many chemicals in cigarettes are considered carcinogenic because they cause what?

a)

Emphysema

b)

Cancer

c)

Heart disease

d)

Liver Failure

13.

Smoking interferes with the lungs' ability to provide what to the rest of the body?

a)

Oxygen

b)

Ammonia

c)

Water

d)

Carbon dioxide

14.
When you breathe, your lungs take in ___ and remove ___. 
a)
air/oxygen
b)
oxygen/carbon dioxide 
c)
carbon dioxide/waste 
d)
waste/air 
15.
Oxygen from the air enters the blood stream at what location?
a)
Cardiac Notch
b)
Pulmonary Vein
c)
Alveoli
d)
Paranasal Sinuses
16.
As you breathe this contracts and flattens to give your lungs room to fill up with air.
a)
larynx
b)
lung balloon
c)
diaphragm
d)
heart
17.

Which organelle is responsible making food (glucose) using sunlight?

a)

Cell Membrane

b)

Nucleus

c)

Chloroplast

d)

Mitochondria

18.

Select all that are raw materials for photosynthesis.

a)

Water

b)

Carbon Dioxide

c)

Oxygen

d)

Sunlight (Light Energy)

e)

Glucose (Sugar/food)

19.

Is glucose (C6H12O6) a reactant (raw material) or product of photosynthesis?

a)

Product

b)

Reactant

c)

Neither

20.
How does carbon dioxide get into the leaves of a plant?
a)
It's absorbed by the roots
b)
It's made in a chemical reaction in the stem
c)
It enters through the stomata
d)
It goes through the flowers
21.

What do plants use glucose (sugar) for?

a)

It can be stored for later use.

b)

It can be used for growing.

c)

It can be used to make new cells.

d)

It can be used to make seeds and flowers.

e)

All of the above.

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