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Form 2: Science Revision

Total questions: 100

Worksheet time: 1hrs 25mins

Name
Class
Date
1.
What gas is released when an acid reacts with an reactive metal?
a)
Oxygen
b)
Hydrogen
c)
Helium
d)
Bromine
2.

Which of the following is tertiary consumer

a)

Lion

b)

Sun

c)

Plant

d)

Deer

3.

Which classes of food helps to growth and repair damaged tissues

a)

Fat

b)

Fibre

c)

Protein

d)

Carbohydrate

4.

What are the two ways air bone diseases are transmitted.

a)

Droplet transmission

b)

Dust transmission

c)

Waterbone transmission

d)

Infection through vectors

5.

During electrolysis oxygen gas is produced....and hydrogen gas is produced....

a)

Anod,cathod

b)

Anode,cathod

c)

Anode,cathode

d)

Anoded,cathode

6.

Factors affect the rate of evaporation of water except,

a)

Movement of land

b)

Humility

c)

Exposed surface area of water

d)

Surrounding temperature

7.

During a hot and sunny day, what colour of shirt is suitable for you to wear?

a)

Black

b)

White

c)

Any colour will be fine

8.

" The organisms that can cause disease' is called _______

a)

bacteria

b)

pathogen

c)

probiotic

d)

biosome

9.

Sars-Cov2 virus that lead to Covid19 disease is example of (i)___________ disease that transmitted through (ii)_________ transmission.

a)

(i) waterborne (ii) water

b)

(i) touch (ii) parasite

c)

(i) airborne (ii) droplet

10.

"Cholera, Typhoid, Amoebic dysentery"

is the common disease that transmitted through _____

a)

air

b)

touch

c)

vector

d)

water

11.

The diagram shows the arrangement of four identical 2 Ω resistors in a circuit. What is the effective resistance of the resistors?

a)

0.8 Ω

b)

1.0 Ω

c)

1.2 Ω

d)

1.4 Ω

12.

The __________ states that the current passing through a conductor is directly proportional to the potential difference across the conductor.

a)

Boyle’s Law

b)

Newton’s First Law

c)

Ohm’s Law

d)

Newton’s Second and Third Law

13.

The diagram shows an electromagnet. Which of the following can increase the strength of the magnetic field?

I. increasing the number of turns of the coil

II. increasing the resistance of the rheostat

III. increasing the current flow in the circuit

a)

I and II only

b)

I and III only

c)

II and III only

d)

I, II, and III

14.

Which of the following describes what happens when we breathe out?

a)

1

b)

2

c)

3

d)

4

15.

Which of the following is not used for breathing?

a)

Skin

b)

Gills

c)

Lungs

d)

Feelers

16.

The following process takes place in plants.

What is this process called?

a)

Transport

b)

Circulation

c)

Respiration

d)

Photosynthesis

17.

The diagram below shows part of a leaf viewed under a microscope. Use the diagram to answer question 4 & 5.


Which of the following describe S?

a)

It is a cell.

b)

It is a tissue.

c)

It is an organ.

d)

It is an opening.

18.

S is mostly found on the underside of a leaf.

Which of the following explains why is this so?

a)

To avoid direct sunlight which may damage the leaf.

b)

To make it more convenient for the leaf to make food.

c)

To allow ease of movement of air in and out of leaf.

d)

To reduce the rate of evaporation of water from the leaf.

19.

Which of the following statements describes the cells in our body correctly?


A. The cells in our body are usually packed tightly together.

B. The cells in our body come in different shapes and sizes.

C. The structures of our body cells are related to their functions.

D. New cell are formed in our body to replace cells which are old or damaged.

a)

B only

b)

A and C only

c)

A, B and D only

d)

A, B, C and D

20.

Which of the following statements describes what will happen to a cell when the nucleus stop functioning?

a)

The cell will lose its shape.

b)

The cell will divide to produce more cells.

c)

The cell will change its function.

d)

The activities inside the cell will not be well-controlled.

21.

Which of the following statements about the circulatory system are true?


A. Our pulse rate increases when we are anxious.

B. The number of times our heart beats in one minute is called our pulse rate.

C. Blood pumped to various parts of our body as a result of the contraction of our heart muscles.

D. Our heart, blood vessels and the blood that flows through them, together, form the circulatory system.

a)

A, B and D only.

b)

A, C and D only.

c)

B, C and D only.

d)

A, B, C and D.

22.

Which of the following substances are transported by blood?


A. Water

B. Waste materials

C. Undigested food

D. Oxygen and Carbon Dioxide

a)

A and D only.

b)

A, B and D only.

c)

A, C and D only.

d)

A, B, C and D

23.

In which of the following circuits will the bulb light up?

a)
b)
c)
d)
24.

The table shows four brands of batteries and the amount of time they allowed a torch to light up until its bulb stopped glowing.


Which of the following statements supports the data shown in the table?

a)

Brand B is the most expensive brand of battery.

b)

Brand D causes the torch to shine brighter than brand C.

c)

Brand C is a better brand of battery compared to brand B.

d)

Brand A has the shortest life span compared to the other brands of batteries.

25.

Study the diagram carefully. Use the diagram to answer questions 13 and 14.


What happens when bulb E blows?

a)

Only bulb C will light up.

b)

Only bulbs A, B and D will light up.

c)

Bulbs A, B, C and D will not light up.

d)

Bulbs A, B, C and D will continue to light up.

26.

Which bulb, when blown, will result in only two bulbs lighting up?

a)

Bulb A

b)

Bulb B

c)

Bulb C

d)

Bulb D

27.

Which pair of switches in the circuit below must be closed in order fro both bulbs to light up?

a)

Switches 1 and 2

b)

Switches 2 and 3

c)

Switches 3 and 4

d)

Switches 1 and 4

28.

Jane wanted to find out how two different kinds of seeds would germinate when the conditions for germination are kept the same. Which variables should she keep constant?


A. Type of seeds.

B. Amount of soil.

C. Amount of water.

D. Type of container used

a)

A and C only

b)

B and D only

c)

B, C and D only

d)

A, B, C and D

29.

Why do plants scatter their seeds?


A. To prevent overcrowding.

B. To allow plants to grow in new places.

C. To reduce competition for food and water.

D. To ensure that new kinds of plants can grow.

a)

A and B only

b)

C and D only

c)

A and C only

d)

A, B, C and D

30.

The diagram below shows the female human reproductive system.

Where are the eggs produced?

a)

1

b)

2

c)

3

d)

4

31.

Which of the following must occur in order for fertilisation to take place successfully?

a)

The fertilised egg must divide.

b)

The sperm must be strong and healthy.

c)

The egg and sperm must meet and fuse.

d)

The egg must be released from the ovary.

32.

Which of the following statements about reproduction in humans are true?


A. Only one sperm is required to fertilise an egg.

B. It takes about nine months for a baby to become fully developed.

C. Fertilisation of the sperm and egg takes place inside the female's body.

D. The development of the fertilised egg takes place outside the female's body.

a)

A and C only

b)

B and D only

c)

A, B and C only

d)

A, B, C and D

33.
What gas is released when an acid reacts with an reactive metal?
a)
Oxygen
b)
Hydrogen
c)
Helium
d)
Bromine
34.

What is the ph level of acid rain?

a)

4

b)

3

c)

1

d)

6

35.

What can acid rain pollute?

a)

Trees

b)

Water

c)

Air

d)

Clouds

36.

What can acid rain corrode?

a)

Statues

b)

Houses

c)

Brick

d)

Trees

37.

Is acid rain a pollutant?

a)

Yes

b)

No

38.

Is acid rain a corrosive substance?

a)

No

b)

Yes

39.

State the taste of this fruit?

a)

Tastles

b)

Bitter

c)

Sour

d)

Sweet

40.

What is the example of alkaline substance

a)

bitter gourd

b)

lemon juice

c)

cooking oil

d)

mineral water

41.

Which of the food has the same taste as the sweets?

a)

Chocolate

b)

Salted egg

c)

Baking powder

d)

Soda bicarbonate

42.

Name the indicator used to determine the chemical properties of toothpaste and pineapple juice?

a)

Red and Blue litmus paper

b)

Filter paper

c)

Colour paper

d)

Petri dish

43.

Which of the properties of alkaline substance is NOT TRUE?

a)

taste bitter

b)

slippery

c)

turn red litmus paper to blue

d)

turn blue litmus paper to red

44.

Which of the following changes the blue litmus paper to red?

a)

Potato

b)

Soup

c)

Brinjal

d)

Ice cream

45.

Which of the following can be used to replace tamarin in cooking?

a)

Papaya

b)

Long bean

c)

Salted egg

d)

Tomato

46.

Which substance is correctly matched?

a)

Salted fish - Acidic

b)

Soursop - Acidic

c)

Vinegar - Alkaline

d)

Body wash - Neutral

47.

Substance X does not changes blue or red litmus paper. Which of the following is Substance P?

a)

Medicine

b)

Shampoo

c)

Salt solution

d)

Coffee

48.

Teacher has run out of litmus paper. Which of the following indicator can be used to replace the litmus paper?

a)

Chili

b)

Soy source

c)

Baking powder

d)

Hibiscus extract

49.
How do Amphibians breath?
a)
Gills
b)
Blow Hole
c)
Gills and Lungs
d)
Lungs
50.
Do fish lay eggs or give birth?
a)
Give Birth
b)
Lay Eggs
51.
What is a vertabrate?
a)
An animal that has a spinal cord or backbone
b)
An animal that has lungs
c)
A human that can play Soccer
d)
An animal that has bones
52.
What is a invertabrate?
a)
An animal lacking a backbone
b)
An animal that has a spinal cord
c)
A person that has a jaw
d)
An animal or person that has lungs
53.
Body covering of a mammal?
a)
Fur
b)
Scales
c)
Fur and skin
d)
Skin and Scales
54.
Where does the energy from an ecosystem come from?
a)
Trees
b)
Sun
c)
Plants
d)
Water
55.
Are Amphibians cold or warm bloddedd
a)
Cold
b)
Warm
56.
What does cold blooded mean?
a)
They are always cold blooded
b)
They switch there blood temperature in different seasons
c)
Is warm blooded
d)
Has no blood
57.
How many types of vertabrates are there?
a)
1738 
b)
6
c)
21
d)
5
58.
Structural meaning
a)
Features of an organism
b)
Structure of the body
c)
How the body works
d)
Features of your hand
59.
Which of these animals have a back bone or spinal cord?
a)
Scorpions
b)
Snakes
c)
Jelly Fish
d)
Krill
60.

This nutrient is the main fuel for our bodies

a)

carbohydrates

b)

protein

c)

fat

d)

calories

61.

This nutrient is neccesary for building muscle and blood

a)

carbohydrates

b)

protein

c)

fat

d)

fiber

62.

We produce this much saliva every day!

a)

1 gallon

b)

1 liter

c)

1 quart

d)

1 cup

63.

A good meal to eat for "carb loading" would be...

a)

steak & onions

b)

ice cream sundae with hot fudge

c)

chicken broth

d)

whole wheat pancakes and fresh fruit

64.

The first ingredient listed on a nutrition label is...

a)

the most nutritious

b)

the first in alphabetical order

c)

the most abundant ingredient

65.

A balanced meal includes food from all _______food groups

a)

6

b)

5

c)

4

d)

3

66.

Fish, meat, tofu and peanut butter are good sources of

a)

carbohydrates

b)

sugar

c)

protein

d)

fiber

67.

In order to keep your digestion "moving", you should make sure to eat plenty of

a)

fiber

b)

fat

c)

sugar

d)

calories

68.

Eat a variety of fruits and vegetables to ensure you get enough

a)

fat

b)

vitamins & minerals

c)

protein

d)

dairy

69.

We don't have to eat rocks in order to get the minerals we need to be healthy, because...

a)

we eat plants that absorb these nutrients in the water they drink

b)

tiny rocks are ground up in the processed foods we eat

c)

you can just lick some rocks

70.

This nutrient is needed in small amounts to insulate our bodies from the cold and to cushion our organs

a)

vitamins

b)

carbohydrates

c)

sugar

d)

fat

71.

Calories are

a)

found in the earth's crust

b)

one of the essentail nutrients our bodies need

c)

a measure of heat energy in food

72.

Which of the following is NOT a mineral

a)

sodium

b)

calcium

c)

iron

d)

protein

73.

Another term for "not eating"

a)

fasting

b)

consuming

c)

dieting

d)

respirating

74.
Which is not a property of all magnets?
a)
Has a magnetic field
b)
exerts forces
c)
has 2 magnetic poles
d)
has 2 geographic ples
75.
The center of a bar magnet is the strongest
a)
True
b)
False
76.
The lines on this image are called...
a)
magnetic field lines
b)
iron fillings
c)
graphite lines
d)
none of these
77.
This type of magnet is DIFFICULT to magnetize
a)
temporary
b)
permanent
78.
Magnetic poles and electric charges are similar in that...
a)
like poles repel and opposites attract
b)
magnetic force is equal to electric force
79.
If the end of an unknown magnet sticks to a magnet pole labeled "North" the unknown end must be...
a)
North
b)
South
c)
East 
d)
West
80.
Electricity can be used to create a magnet
a)
True
b)
False
81.
A Magnet can be used to create electricity
a)
True
b)
False
82.
Electricity & Magnetism are interconnected
a)
True
b)
False
83.
A _________ is a device that produces magnetism by spinning a coil of wire around a nail.
a)
Generator
b)
Electromagnet
c)
Battery
d)
Galvonometer
84.
Solenoids and Electromagnets use _________ to create Magnetism
a)
Magnetism
b)
Electricity
c)
Wires
85.
What will happen when these magnets are brought close together?
a)
They will attract each other.
b)
They will repel each other.
c)
Both magnets will turn to the left
d)
Both magnets will turn to the right
86.
Which object would a magnet attract?
a)
a glass bottle
b)
a piece of paper
c)
a metal paper clip
compass
d)
a rubber eraser
magnetic field
87.
What happens when two north poles of a magnet are placed together?
a)
they repel
b)
they attract
c)
they cancel each other out
d)
the strength of the magnet is doubled
88.
A device that uses a free-moving magnetic needle to show direction is a:
a)
Ruler
b)
magnet
c)
compass
d)
magnetic field
89.
The attraction that causes water and other liquids to form drops is called ________________. This is also water’s ability to be attracted to other water molecules.
a)
adhesion
b)
capillary action
c)
cohesion
d)
surface tension
90.
Type of mixture in which all substances are evenly distributed is a?
a)
Solution
b)
Solute
c)
Solvent
91.
What is a solvent?
a)
The substance that does the dissolving in a solution.
b)
The substance that is being dissolved in a solution.
c)
The mixing of different substances.
d)
The process in which neutral molecules lose or gain electrons
92.
In the above picture, a powder is about to be poured into the liquid. Which of the following should be done to make this powder dissolve faster?

a)
stir the powder in the liquid
b)
freeze the mixture
c)
add more powder to the liquid
d)
store the mixture in a dark place
93.
A solution that is considered dilute would be....
a)
Dark in color
b)
Have a strong scent
c)
Have a large amount of solute
d)
Have a small amount of solute
94.

Diagram shows a UHT milk. It is example of ...

a)

Suspension

b)

Solute

c)

Colloids

95.

Diagram shows experiment to study the effect if stirring and without stirring salts to its rate of solubility in water. Both beaker contain 100 cm³ of water.

What is the manipulated variable?

a)

Rate of solubility

b)

Temperature

c)

Volume if water

d)

Stirring and not stirring process

96.

In which beaker does salt dissolves faster?

a)

Hot water

b)

Room temperature

c)

Ice watet

97.

Why fine salt dissolves faster bin water compared to coarse salt?

a)

Fine salt has bigger total surface area exposed to water

b)

Fine salt has smaller total surgace arra exposed to water

98.

Why does salt dissolves faster in hot water?

a)

Hot water hive high kinetic energy to solvent and solute perticles

b)

More collision between solute and solvent particles

c)

Higher temperature gives more surgace area to the solute

99.

What is these phrases suspended particles means

a)

A homogenus mixture from two or more substances

b)

Substance that dissolves in other substances

c)

Solids that do not dissolve in liquids

d)

Substance that dissolves other substances

100.

What is the best way to purify water?

a)

Add salt

b)

Put inside the refrigerator

c)

Filtration or Boiling

d)

Find a very clean stream of water

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