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Science Revision - Cambridge Checkpoint

Total questions: 50

Worksheet time: 53mins

Name
Class
Date
1.

What is the main function of kidneys?

a)

Remove urea

b)

Secretion of antibiotics

c)

Creating red blood cells

d)

Produce sweat

2.

The kidneys and bladder belong to

a)

The excretory system

b)

The digestive system

c)

The respiratory system

d)

The cardiovascular system

3.

What organ is responsible for filtering the blood?

a)

Lungs

b)

Bladder

c)

Kidneys

d)

Heart

4.

What is #2?

a)

Kidney

b)

Ureter

c)

Bladder

d)

Urethra

5.
What is #3?
a)
Kidney
b)
Ureters
c)
Bladder
d)
Urethra
6.
What determines the electrical charge of an atom?
a)
Neutron
b)
Electron
c)
Proton
d)
Nucleus
7.

An ion with -2 charge is formed when

a)

an atom loses two electrons

b)

an atom gains two electron

8.

What is the name given to Group 1 elements?

a)

halogens

b)

noble gases

c)

alkali metals

d)

alkaline earth

9.

What is the atomic symbol for Potassium?

a)

P

b)

K

c)

Pb

d)

Pd

10.

Which one of these is not a noble gas?

a)

Helium

b)

Argon

c)

Iodine

d)

Neon

11.

Thermal energy moves from an object with a

a)

lower temperature to an object with higher temperature

b)

bad smell to an object with a good smell

c)

higher temperature to an object with lower temperature

d)

lower mass to an object with higher mass

12.

What is heat?

a)

A form of energy

b)

A measure of how hot or cold something is

13.

What type of heat energy transfer occurs when two things are in contact (touching)?

a)

Conduction

b)

Convection

c)

Radiation

14.

Transfer of thermal energy through 'space or vacuum'

a)

Conduction

b)

Convection

c)

Radiation

15.

Is there a reaction?

Lead + copper sulfate ------>. ??

a)

Yes - lead sulfate will be formed

b)

No reaction

16.

Cell in the roots that absorb water from the soil

a)

Root hair cells

b)

Xylem

c)

Phloem

d)

Stomata

17.

What is the function of root hair?

a)

it is place to store the glucose

b)

to increase surface area for water and minerals absorption

18.
Water vapour exits a plant leaf by
a)
the stomata
b)
the epidermis
c)
the palisade cells
d)
the spongy mesophyll
19.

The tissue that transports water and minerals UPWARDS from a plant's roots is know as ______.

a)

Chlorophyll

b)

Phloem

c)

Stomata

d)

Xylem

20.
What kind of circuit is this?
a)
Series
b)
Consecutive
c)
Parallel
d)
Training
21.
this is the symbol for a _____?
a)
switch
b)
light 
c)
battery
d)
wires
22.

Electric current is measured in ______.

a)

Watts

b)

Volts

c)

Amperes

d)

Ohms

23.
As the resistance in a circuit increases, the electric current __________.
a)
increases
b)
decreases
c)
stays the same
24.
This is the symbol for a _____?
a)
an AC current source
b)
a DC current source
c)
an ammeter
d)
a voltmeter
25.
This is the symbol for a _____?
a)
Lamp
b)
Water wheel
c)
Loudspeaker
d)
Motor
26.

How does resistance affect current?

a)

Less resistance - Less current

b)

More resistance - More current

c)

Resistance does not affect current

d)

More resistance - Less current

27.

How do you calculate resistance?

a)

Current x Voltage

b)

Voltage ÷\div Current

c)

Current ÷\div Voltage

28.

If the current through a resistor is 2A, and the voltage across it is 12V, what is the resistance?

a)

12 Ω\Omega

b)

24 Ω\Omega

c)

6 Ω\Omega

d)

0.167 Ω\Omega

29.

What are nebulae?

a)

groups of exploding stars

b)

clouds of gas and dust in space

c)

a collection of stars

d)

groups of stars forming a pattern

30.
Currently, the Sun is fusing ___
a)
hydrogen into helium
b)
helium into hydrogen
c)
helium into carbon
d)
hydrogen into carbon
31.
Stars can take different paths due to having different _____________
a)
temperature
b)
mass
c)
brightness
d)
color
32.
After the main sequence, a low mass star becomes a
a)
black dwarf
b)
protostar
c)
red giant
d)
supergiant
33.

After a super (red) giant, a high mass star explodes and forms a

a)

supernova

b)

red giant

c)

planetary nebula

34.

Joshua is testing how the volume of water (used to water) a plant affects its height after 5 days. What would be the INDEPENDENT VARIABLE in his experiment?

a)

The type of pot he used

b)

The amount of sunlight each plants get

c)

The height of the plant after 5 days

d)

The volume of water he used for each plant

35.

In which medium sound can't travel?

a)

solid

b)

liquid

c)

gas

d)

vacuum

36.
Frequency is measured in ____
a)
newtons
b)
hertz
c)
inches
d)
loudness
37.
Low pitches are produced by objects vibrating _______________.
a)
quickly
b)
slowly
38.

The idea where the better-adapted organisms survive to pass traits along to offspring.

a)

Natural Selection

b)

Extinction

c)

Artifical Selection

39.

Which important process allows plants to absorb carbon dioxide from the atmosphere?

a)

transpiration

b)

respiration

c)

breathing

d)

photosynthesis

40.
All of the carbon in existence is continually recycled in the carbon cycle
a)
True
b)
False
41.

What type of plate margin or boundary which is shown by the illustration?

a)

Destructive

b)

Constructive

c)

Conservative

d)

Collision

42.
This type of plate boundary is when two plates slide past each other.
a)

Convergent

b)

Transform

c)

Divergent

43.

Which of these are key pieces of evidence of continental drift?

a)

Continent shapes

b)

Fossil record

c)

Rock layers

d)

All of the above

44.

When sodium and chlorine combine to form sodium chloride, sodium chloride is the:

a)

Reactant

b)

Product

45.

The law of conservation of mass

4 grams of hydrogen and 32 grams of oxygen will combine to form:

a)

36 grams of water

b)

28 grams of hydroxide

c)

32 grams of oxygen

d)

36 grams of helium

46.
If the distance represented by the letter A were increased, how would it change the way the sound was heard?
a)
The sound would be higher. 
b)
The sound would be lower. 
c)
The sound would be softer. 
d)
The sound would be louder. 
47.
Frank has an eraser. It has a mass of 4g, and a volume of 2cm3. What is its density?
a)
8 g/cm3
b)
2 g/cm3
c)
1/2 g/cm3
d)
24 g/cm3
48.
An irregularly shaped piece of gold was lowered into a graduated cylinder holding a volume of water equal to 17 ml. The height of the water rose to 20 ml. If the mass of the gold was 27 g, what was its density?
a)
9 g/mL
b)
10.5 g/mL
c)
6.5 g/mL
d)
8 g/mL
49.

What is the reason why Noble gases are so stable?

a)

They have an even number of electrons

b)

They have no electrons

c)

They have a full outer shell of electrons

d)

They bond with other atoms

50.

What is happening in the picture?

a)

layers of the Earth are changing positions

b)

the inner and outer core are solid

c)

convection currents are causing the tectonic plates to move

d)

the mantle is growing

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