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1K Online Quiz 2

Total questions: 150

Worksheet time: 1hrs 4mins

Name
Class
Date
1.

Which of the following is a natural phenomenon?

a)

Dam construction

b)

Volcanic eruptions

c)

Use of mobile phones

d)

Discovery of new medicines

2.

Which of the following represents the prefix value of kilo?

a)

10

b)

100

c)

1000

d)

1000 000

3.

Which statement is true about mass?

a)

the total volume of an object

b)

the total surface area of an object

c)

the gravitational force acting on an object

d)

the amount of matter contained in an object

4.

diagram above shows a hazard symbol. what is the meaning of this symbol?

a)

flammable

b)

irritant

c)

explosive

d)

poisonous

5.

Table above shows the volumes of a few marbles measured using the water displacement method. What is the volume of 5 marbles?

a)

3 cm3

b)

9 cm3

c)

15cm3

d)

21cm3

6.

The following information shows the steps involved in a scientific investigation

J : making an observation

K : Making a conclusion

L : analysing data

M : collecting data

Which of the following is the correct step in the scientific investigation?

a)

J, M, K, L

b)

J, M, L, K

c)

M, J, K, L

d)

M, J, L, K

7.

Diagram above shows three types of bottles with different labels. What are the chemicals that might contain inside bottle P, Q and R?

a)

P: chloroform, Q: ethanol, R: mercury

b)

P: Radium, Q: mercury, R: Pottasium

c)

P: Benzene, Q: potassium, R: radium

d)

P: lead, Q: petrol, R: chloroform

8.

which of the following converting unit of base quantity is correct?

a)

1.9 kg -> 19 000 g

b)

89 g -> 0.089 kg

c)

170 mm -> 0.017 m

d)

450 cm -> 45 m

9.

which of the following apparatus can be used to measure the volume of liquids?

a)

measuring cylinder , test tube

b)

beaker, stopwatch

c)

test tube, pipette

d)

measuring cylinder, beaker

10.

choose the correct match

a)

length -> kilometre -> km

b)

mass -> gram -> g

c)

temperature -> degree celcius -> oC

d)

electric current -> ampere -> A

11.

Which of the following structure is not found in animal cells?

a)

Mitochondrion

b)

Cell membrane

c)

Chloroplast

d)

Cytoplasm

12.

Which of the following structure controls movement of substances in and out of a cell?

a)

Cell wall

b)

Cell membrane

c)

Chloroplast

d)

Mitochondion

13.

Which of the statement about red blood cell is wrong?

a)

Without nucleus

b)

Has biconcave disc shape

c)

Destroys bacteria

d)

Contains haemoglobins

14.

Which of the following structure is site of cellular respiration?

a)

Chloroplast

b)

Nucleus

c)

Mitochondrion

d)

Cell wall

15.

Which of the following organ is not found in digestive system?

a)

Oesophagus

b)

Liver

c)

Large intestine

d)

Lung

16.

Our bodies remove waste products through .....

a)

Excretory system

b)

Lymphatic system

c)

Digestive system

d)

Nervous system

17.

Two or more types of tissues can form an (a)  

18.

Which of the following is an unicellular organism?

a)

Mucor

b)

Spirogyra

c)

Hydra

d)

Amoeba

19.

Which of the following statement about photosynthesis is wrong?

a)

Releases energy

b)

Needs chlorophyll

c)

Needs water

d)

Produces glucose

20.

Excess glucose from photosynthesis is stored in the form of (a)  

21.

Which of the following is not correct about iodine test?

a)

It is used to test glucose

b)

Chlorophyll must be removed prior to the test

c)

It is used to test starch.

d)

Positive result is shown when brown colour of iodine solution turn blue-black

22.

Which of the following is not correct about iodine test?

a)

It is used to test glucose

b)

Chlorophyll must be removed prior to the test

c)

It is used to test starch.

d)

Positive result is shown when brown colour of iodine solution turn blue-black

23.

Which of the following is not products from cellular respiration?

a)

Carbon dioxide

b)

Glucose

c)

Water

d)

Energy

24.

What is meant by the mass of an object?

a)

Quantity of substance in an object.

b)

Pull of gravity on an object.

c)

Pressure exerted by an object

d)

Total force exerted by an object.

25.

Which is the best definition for matter?

a)

Anything which has shape.

b)

Anything which has volume

c)

Anything which has volume and mass

d)

Anything which has mass and occupies space

26.

A ballon expands and its weight increases as it is filled with water. This shows that...

a)

water has mass

b)

water takes up spaces

c)

water is matter

27.

Solids possess fixed shapes and volumes because their particles...

a)

do not have energy

b)

attract one another

c)

keep the same positions

d)

are of the same size

28.

The perfumes used by a girl can be detected when she passes by. How can this be explained?

a)

Particles of perfume diffuse quickly through the air

b)

Particles of perfume combine with air particles

c)

Particles of perfume float in the air

d)

Perfume sets free smell into the air

29.

Which statement below is incorrect?

a)

Particles of solids vibrate in their own positions.

b)

Particles in liquids can move about freely

c)

Particles in gases diffuse in all directions

d)

The movement of particles in matter decreases with rise in temperature

30.

What is meant by the density of a substance?

a)

The number of particles in 1 cm3 of a substance

b)

The volume of 1 g of a substance

c)

The space taken up by 1 g of a substance

d)

The mass per unit volume of a substance

31.

An object weighing 40 g displaces 5 cm3 of water in a measuring cylinder. What is the density of the object?

a)

0.125 g/cm3

b)

35 g/cm3

c)

8 g/cm3

d)

4.5 g/cm3

32.

A piece of aluminium weighing 260 g is placed into a larger measuring cylinder containing water. if the density of aluminium is 2.6 g/cm3 , what volume of water will it displaces?

a)

10 cm3

b)

50 cm3

c)

26 cm3

d)

100 cm3

33.

Which one of the following does not depend on how small or large a sample of the material is used in determining it?

a)

Density

b)

Mass

c)

Weight

d)

Volume

34.

A wooden rod with a cross-sectional area of 5cm2 and a lenght of 20 cm has a of 70 g. What is the density of the rod in g/cm3?

a)

0.6

b)

0.7

c)

0.8

d)

0.9

35.

What property of air is made use of in using it to inflate motor car tyres?

a)

Air is a mixture of gases

b)

Air exerts pressure in all directions

c)

Air has mass

d)

Air occupies space

36.

How does a submarine make itself less dense for rising to the surface of the sea?

a)

By stopping its engines

b)

By inflating the floats in the submarine

c)

By filling its ballast tanks with sea water

d)

By emptying sea water from its ballast tanks

37.

Among the things which float on water are....

a)

rafts for carrying goods

b)

buoys fr guiding ships

c)

floats on board ferries

38.

When your mother is cooking curry in the kitchen, people in the sitting room can smell the curry. This is an application of...

a)

diffusion of gases

b)

density of air

c)

convection currents

d)

the principle of flotation

39.
Where does an off spring get its traits in asexual reproduction?
a)
From both parents
b)
From only one parent
c)
From neither parent
d)
There are no traits handed down
40.
Sexual reproduction requires _____ parents and asexual reproduction requires ___ parents
a)
1,1
b)
2,2
c)
2,1
d)
1,2 
41.

Penguins lay 1-2 fertilized eggs that the male and female take turns incubating on their feet. What type of reproduction does this example represent?

a)

Sexual reproduction

b)

Asexual reproduction

42.

Reproducing asexually will produce offspring ...

a)

genetically different from each other

b)

genetically identical to the parent

43.
Which of the following describes the main advantages of sexual reproduction
a)
requires lots of time/energy
b)
no new gene combos can arise 
c)
diversity
d)
looks identical to the parent
44.
 A general name for a sex cell (egg or sperm) is a: 
a)
zygote
b)
gene
c)
offspring
d)
gamete
45.
A hydra reproduces when an outgrowth, or bud, forms and continues to develop until if falls off of the parent. This is an example of:
a)
Binary Fission
b)
Sporulation
c)
Budding
d)
Vegetative Propagation
46.

When an offspring grows off from the body of a parent organism it is called __________________.

a)

budding

b)

fission

c)

fragmentation

d)

sporulation

47.

____________________ occurs when a male gamete (sperm) combines with a female gamete (egg).

a)

sporulation

b)

fertilization

c)

fission

d)

regeneration

48.

New PLANTS are reproduced from roots, stems, or leaves of the parent plant (Ex: Strawberries, Potatoes)

a)

Sexual Reproduction

b)

Vegetative Reproduction

c)

Budding

d)

Regeneration

49.

When an organism splits into an exact copy

a)

fertilization

b)

binary fission

c)

regeneration

d)

budding

50.

When fertilization happens outside the bodies of the parents

a)

external fertilization

b)

asexual reproduction

c)

internal fertilization

d)

sexual reproduction

51.

Which of these statements about asexual reproduction is false?

a)

Asexual reproduction requires only one parent.

b)

Asexual reproduction increases variations in a population.

c)

Asexual reproduction is carried out by bacteria.

d)

Asexual reproduction can produce more offspring faster than sexual reproduction can.

52.

Which is a type of Asexual Reproduction

a)

Sexual

b)

Binary fission

c)

Cells

d)

organism

53.

What is an disadvantage of asexual reproduction?

a)

An organism can reproduce without a mate

b)

Some organisms can quickly produce a large number of offspring

c)

There is little genetic variation within a population

54.
What are the three states of matter?
a)
solid, volume, mass
b)
density, volume, mass
c)
solid, liquid, gas
d)
density, gas, volume
55.
Something that takes up space and has mass.
a)
volume
b)
matter
c)
mass
d)
density
56.
A state of matter that has a definite volume and shape.
a)
solid
b)
liquid
c)
gas
d)
matter
57.
The amount of space something takes up
a)
density
b)
volume
c)
mass
d)
matter
58.

A watermelon has more matter than a grape, so it has more

a)

mass

b)

weight

c)

solid

d)

greater

59.
You can measure ______ with grams.
a)
mass
b)
volume
c)
conductivity
d)
melting point
60.
Solids have a definite _______________.
a)
smell
b)
shape
c)
picture
d)
sound
61.
Liquid matter takes the shape of _______.
a)
a gas
b)
water
c)
a pet
d)
Its container
62.
Water in its solid form is _____________.
a)
a vapor
b)
ice
c)
a liquid
d)
boiling
63.
The amount of matter something contains is its ______________.
a)
gas
b)
solid
c)
weight
d)
mass
64.
The measurement system used by scientist around the world.
a)
metric system
b)
customary systerm
c)
calorie system
d)
science system
65.
What is the measure of gravity on an object?
a)
matter
b)
mass
c)
weight
d)
volume
66.

Volume is ______________.

a)

length X width

b)

height X length

c)

length X width X height

d)

width X height

67.

Which example is a compound?

a)

N2

b)

O2

c)

Cu

d)

H2O2

68.

Two or more atoms joined together for a(n)...

a)

Element

b)

Compound

c)

Molecule

d)

Mixture

69.
Salt has a chemical formula of NaCl.  Salt is a...
a)
Compound
b)
Element
c)
Mixture
d)
None of the Above
70.
What cannot be broken down into other substances?
a)
Compound
b)
Mixture
c)
Solids
d)
Element
71.
A combination of substances that are not chemically combined is called a(n)____________. 
a)
mixture
b)
compound
c)
physical
72.
Mixtures are separated through ___________changes.
a)
mixture
b)
compound
c)
physical
73.
An element is made up of only one kind of _____.
a)
isotope
b)
plastic
c)
atom
d)
metal
74.

A compound is a substance formed when two or more chemical elements are chemically bonded together. Example : Pure water.

a)

True

b)

False

75.

A mixture is a combination of two or more pure substances in which each pure substance retains its individual chemical properties.

a)

True

b)

False

76.
What are the states of matter?
a)
solid, liquid, and juice
b)
solid and liquid
c)
solid and gas
d)
solid, liquid, and gas
77.
Which form of matter has a definite shape like this picture?
a)
liquid
b)
solid
c)
gas
d)
clay
78.
Which form of matter take the shape of a container like this juice?
a)
liquid
b)
solid
c)
glass
d)
gas
79.
Which form of matter fills the space like it has in the balloon?
a)
liquid
b)
string
c)
solid
d)
gas
80.
What is happening when my ice cream changes from a solid to a liquid?
a)
freezing
b)
melting
c)
burning
d)
evaporation
81.
What is happening when my water bottle in the freezer goes from a liquid state to a solid state?
a)
melting
b)
evaporating
c)
freezing
d)
cutting
82.
What happens when my glass of water is sitting in the sun and disappears into a gas?
a)
evaporation
b)
burning
c)
melting
d)
freezing
83.
My glass of ice water is sitting in the sun and has droplets of water on the outside of the glass. What is happening?
a)
condensation
b)
evaporation
c)
melting
d)
freezing
84.
Which form of matter does not take the shape of its container?
a)
liquid
b)
gas
c)
solid
d)
air
85.

Things that take up space are called?

a)

Mass

b)

Liquids

c)

Matter

d)

Space

86.
Which of these are the 3 states of matter?
a)
Solid, Water, Gas
b)
Gas, Desk, Liquid
c)
Solid, Liquid, Air
d)
Solid, Liquid, Gas
87.
When water becomes very hot and turns into steam, this is an example of?
a)
Condensation
b)
Evaporation
c)
Accumulation
d)
Rain
88.

Water can be a solid, liquid, and a gas.

a)

True

b)

False

89.
This is how much matter is in an object or substance.
a)
Volume
b)
Weight
c)
Mass
d)
Melting
90.

Solid state defines as a constituent particles remain fixed at their positions and can only oscillate about their mean positions.

a)

True

b)

False

91.

Liquids able to expand to fill any container with random motion and very low densities and also with a very low attraction between the particles.

a)

True

b)

False

92.

Gas is a state of matter with definite volume but not definite shape.

a)

True

b)

False

93.

Melting is a process that involves the absorption of energy from the surroundings.

a)

True

b)

False

94.

Which of the following involves the process of releasing energy to the surrounding? Tick your answer(s).

a)

Melting of ice

b)

Water turns into ice cubes

c)

Steam turns into water droplets

d)

Nafthalene evaporates to the air

e)

Formation of snow

95.

Matter has

a)

weight

b)

kilogram

c)

mass

d)

gram

96.

Matter occupies

a)

field

b)

solid

c)

space

d)

liquid

97.

Which one is matter?

a)

human

b)

light

c)

sound

d)

heat

98.

Which one is non-matter?

a)

book

b)

worm

c)

plants

d)

vacuum

99.

Which one is physical properties?

a)

rusting

b)

respiration

c)

combustion

d)

melting

100.

Which one is chemical properties?

a)

density

b)

boiling

c)

decomposition

d)

freezing

101.

Formula of density?

a)

mass per area

b)

mass per kilogram

c)

mass per volume

d)

volume per mass

102.

Higher density equal to

a)

less dense

b)

denser

c)

more dense

d)

less denser

103.

Solvent of ink?

a)

water

b)

sugar

c)

turpentine

d)

salt

104.

What are 3 types of particles which make up matter?

a)

Compound

b)

Molecules

c)

Ions

d)

Atoms

105.

What is the simplest particle of matter?

a)

Atoms

b)

Molecules

c)

Ions

d)

Compound

106.

Which is a pure substance that cannot be broken down into any simpler substance by any physical or chemical method?

a)

Compound

b)

Molecule

c)

Element

d)

Atom

107.

What is a substance that is made up of two or more different elements chemically joined together in a fixed ratio?

a)

Compound

b)

Mixture

c)

Atom

d)

Solvent

108.

Which is/are NOT an example of compound?

a)

Water

b)

Oxygen gas

c)

Carbon dioxide

d)

Hydrogen gas

109.

Which is an example of element?

a)

Aluminum

b)

Water

c)

Salt

d)

Sugar

110.

Atom consists of three subatomic particles, except:

a)

electron

b)

proton

c)

molecule

d)

neutron

111.

Electron is a particle with ________ charge.

a)

negative

b)

positive

c)

no

112.

Proton is a particle with _________ charge.

a)

negative

b)

positive

c)

no

113.

Neutron is a particle with _________ charge.

a)

negative

b)

positive

c)

no

114.

'Neutral particles made up of two or more atoms' is the definition of:

a)

element

b)

atom

c)

molecules

d)

mixture

115.

Which of the following is the example an element?

a)

shell

b)

salt

c)

cocktail

d)

oxygen tank

116.

A compound consists of two or more elements combined physically.

a)

True

b)

False

117.

Salt (NaCl) is an example of a compound. What are the elements found in salt?

a)

Carbon, calcium and oxygen

b)

Carbon, hydrogen and oxygen

c)

Sodium and chlorine

d)

Oxygen and carbon

118.

Periodic Table is an orderly arranged table of __________?

a)

compounds

b)

mixture

c)

atoms

d)

elements

119.

Select three correct characteristics of a METAL.

a)

can conduct heat & electricity

b)

low melting and boiling point

c)

high tensile strength

d)

shiny appearance

e)

low density

120.

All of the following are the example of metals, except:

a)

aluminium

b)

copper

c)

carbon

d)

zinc

121.

All of the following are the example of non-metals, except:

a)

iodine

b)

chlorine

c)

carbon

d)

iron

122.

All of the following can conduct electricity, except:

a)

carbon

b)

sulphur

c)

copper

d)

iron

123.

MIxtures can be separated physically.

a)

True

b)

False

124.

Impurities can be removed from flour using magnet.

a)

True

b)

False

125.

WHAT IS A MATTER?

a)

Substance that has shape and weight

b)

Substance that has mass and occupies space

c)

Substance that has color and shape

d)

Substance that has mass and did not occupies space

126.

This prove that

a)

Key can sink

b)

Key has mass and occupies space

c)

Key has mass and did not occupies space

d)

Key did not has mass but occupies space

127.
Ice melting is an example of a
a)
physical change
b)
chemical change
c)
physical property
d)
chemical property
128.

What is the substance that exists in all three states naturally?

a)

Air

b)

Water

c)

Fire

d)

Sound

129.

What is the substance that NOT exists in all three states naturally?

a)

Pen

b)

Rainbow

c)

Water

d)

Oxygen

130.

Particles vibrate in fixed position.

a)

Solid

b)

Liquid

c)

Gas

131.

Particles move randomly and collide with one another.

a)

Solid

b)

Liquid

c)

Gas

132.

Take the shape of the container but fixed volume.

a)

Solid

b)

Liquid

c)

Gas

133.

Lower density equal to

a)

denser

b)

dense

c)

less denser

d)

less dense

134.

What is diffusion?

a)

Process in which the particles of substances diffuse from high concentration area to a low concentration area

b)

Process in which the particles of substances diffuse from low concentration area to a high concentration area

135.

Rate of diffusion of particles in a solid is

a)

high

b)

low

136.

Rate of diffusion of particles in gas is

a)

highest

b)

lowest

137.

During condensation,

a)

heat is absorbed

b)

heat is released

c)

heat is trapped

d)

heat is gone

138.

The clothes hung on the clothesline is undergoing ______.

a)

Boiling

b)

Melting

c)

Evaporation

d)

Condensation

139.
Ability to rust is this type of property:
a)
Physical property
b)
Chemical property
140.

there is ____ type of atom in an element.

a)

two

b)

one

c)

four

d)

three

e)

zero

141.

electrolysis: components in a compoud can be separated ______.

a)

physically

b)

chemically

142.

the function of distillation

a)

to separate two solid mixtures in which one of the substances is magnetic and the other is not

b)

to separate a liquid and insoluble solid mixture

c)

to separate soluble and insoluble materials in water

d)

to separate a completely miscible liquid-liquid mixture that have different boiling points

143.

physical change form new substances. True or False?

a)

True

b)

False

144.

The..................... of an organism always changes due to the changes that occur inside and outside of the body.

a)

internal environment

b)

external environment

c)

increase

d)

homeostasis

145.

The definition of Homeostasis?

a)

is a process of regulating the sugar level in our body to be normal and stable condition.

b)

is a process of regulating the internal environment of the body to be in a balanced and stable condition.

c)

is a process of regulating the external environment of the body to be in a balanced and unstable condition.

d)

is a process of regulating the internal environment of the body to be in a unbalanced and stable condition.

146.

Excessive lost of water makes us feel ............and this can be...........in the long term.

a)

strong and safe

b)

weak and protected

c)

thirsty and secured

d)

thirsty and fatal

147.

Our body temperature needs to be always maintained at ......oC.

a)

50 oC

b)

27 oC

c)

37 oC

d)

42 oC

148.

An extra ....... oC rise in the body temperature can affect the functions of the body cells and can cause ............

a)

6 oC and death

b)

1 oC and death

c)

10 oC and hell

d)

7 oC and heaven

149.

(INCREASE) detected by (.................) and sends the information to the (.....................) and then (DECREASES)

a)

Corrective mechanism and Control centre

b)

Brain and nerve system

c)

Control centre and corrective mechanism

d)

Stimuli and receptors

150.

Regulation of water content and ................. are important homeostasis to .............. life.

a)

glucose level and sustain

b)

blood pressure and end

c)

blood level and carry on

d)

body temperature and sustain