Question 1

What are the properties of mixtures?

Accepted Answer

They can be separated easily

Answer

They don't keep their own properties.

Answer

They cannot be separated

Question 2

Water, sugar and salt are examples of

Accepted Answer

pure substances

Answer

electromagnet

Answer

sugary solution

Answer

mixtures

Question 3

How can you form a mixture of TWO solids?

Accepted Answer

shake or grind

Answer

only shake

Answer

shake or stir

Question 4

How can you form a mixture of TWO liquids>

Accepted Answer

Shake or stir

Answer

shake only

Answer

shake or grind

Question 5

How can you form a mixture of ONE solid and ONE liquid?

Accepted Answer

shake or stir

Answer

shake and grind

Answer

grind only

Answer

shake only

Question 6

How can you separate a mixture?

Accepted Answer

Magnetic Attraction, filtration and heating

Answer

Using separating
funnel only

Answer

heating and evaporating, magnetism and prism

Answer

Using separating
funnel, magnetic attraction and dynamo

Question 7

What is the apparatus used to separate water from oil?

Accepted Answer

separating funnel

Answer

dynamo

Answer

magnet

Answer

iron filings

Question 8

Orange juice and mango juice can be mixed by ………………………….

Accepted Answer

shaking and stirring

Answer

shaking and grinding

Answer

stirring and grinding

Question 9

Grinding is the method of mixing ……………………………..

Accepted Answer

two solids

Answer

one solid and one liquid

Answer

two liquids

Question 10

How can you separate a sand / water mixture

Accepted Answer

Filtration (sand), heating and evaporation (water)

Answer

separating funnel (water) and magnetic attraction (sand)

Answer

water and stir (water) and magnetic field (sand)

Answer

magnetic attraction (salt), heating and evaporation (water)

Question 11

How can you separate paper clips and flour mixture

Accepted Answer

magnetic attraction (paper clips)

Answer

water and stirring (paper clips)

Answer

separating funnel (flour)

Answer

heating and evaporation (flour)

Question 12

The separating funnel only separates

Accepted Answer

oil

Answer

sand

Answer

water

Answer

magnet

Question 13

The solvent is

Accepted Answer

a liquid substance used for dissolving solid
substances

Answer

a mixture in which the solute breaks down

Answer

a solid substance which dissolve in the liquid

Question 14

The solution is the

Accepted Answer

mixture in which the solute breaks down

Answer

solid substance which dissolve in the liquid.

Answer

liquid substance used for dissolving solid
substances

Question 15

The solute is the

Accepted Answer

solid substance which dissolve in the liquid

Answer

liquid substance used for dissolving solid substances

Answer

mixture in which the solute breaks down and spreads in the solvent

Question 16

_______ is the common solvent

Accepted Answer

water

Answer

oil

Answer

flour

Answer

magnet

Question 17

The factors that affect the solubility process

Accepted Answer

stirring, temperature, quantity of solvent and solute and kind of solute.

Answer

stirring, temperature, quantity of solvent and solute and colour of solute.

Answer

stirring, temperature, quantity of solvent and solute and strength of magnet.

Answer

stirring, temperature, number of coils and kind of solute.

Question 18

_______ increases solubility speed.

Accepted Answer

heat

Answer

beaker

Answer

sugar

Answer

magnet

Question 19

Solute plus solvent creates a

Accepted Answer

solution

Answer

dynamo

Answer

prism

Answer

stirring

Question 20

A mixture in which the solute breaks down and spreads in the solvent.

Accepted Answer

solution

Answer

saprophytes

Answer

prism

Answer

electroomagnet

Question 21

A solid that dissolves in a liquid is a

Accepted Answer

solute

Answer

stirring

Answer

Solvent

Answer

solution

Question 22

Sodium chloride is called

Accepted Answer

salt

Answer

solution

Answer

prism

Answer

magnetic needle

Question 23

………………………….. does not dissolve in water.

Accepted Answer

Chalk powder

Answer

Sugar

Answer

Sodium Chloride

Answer

Salt

Question 24

Sodium  bicarbonate dissolves ………………….. than sodium bicarbonate.

Accepted Answer

slower

Answer

worse

Answer

better

Answer

faster

Question 25

Another name for table slat is ………………………………………………

Accepted Answer

Sodium chloride

Answer

pepper

Answer

Sodium bicarbonate

Answer

electromagnet

Question 26

The types of living organisms are

Accepted Answer

producers and consumers

Answer

camouflage and mimicry

Answer

animals and plants

Question 27

Producers produce their own food through the

Accepted Answer

photosynthesis process

Answer

protein

Answer

magnetism

Answer

mimicry

Question 28

Consumers depend on _______ directly or indirectly

Accepted Answer

plants

Answer

nitrogen

Answer

animals

Answer

protein

Question 29

From the food relations is:

Accepted Answer

symbiosis

Answer

predator

Answer

camouflage

Answer

mimicry

Question 30

predation relation in animals ends in

Accepted Answer

killing the prey

Answer

bacteria giving the plants nitrogen

Answer

insects eating plants

Question 31

Commensalism is a relation between

Accepted Answer

two living organisms in which one benefits and the other neither benefited or harmed

Answer

a living organism and its food which is decaying food

Answer

two living organisms in which one is always end up dead

Question 32

Parasites are either

Accepted Answer

external or internal

Answer

camouflage or mimicry

Answer

prey or predator

Answer

saprophytes or decaying

Question 33

If a living organism changes its colour to look like its surrounding environment is called

Accepted Answer

camouflage

Answer

predation

Answer

parasitism

Answer

mimicry

Question 34

Living organisms do camouflage in order to ______ their enemies.

Accepted Answer

hide from

Answer

escape from

Answer

feed on

Answer

kill

Question 35

Some harmless living organisms look like harmful living organisms to ______their enemies.

Accepted Answer

escape from

Answer

feed on

Answer

kill

Answer

hide from

Question 36

In mimicry

Accepted Answer

harmless living organisms look like harmful living organisms

Answer

the prey is always killed

Answer

living organisms change their colour to look like the environment

Question 37

Ascaris and Bilharzia are examples of:

Accepted Answer

internal parasites

Answer

external parasites

Answer

insect eating plants

Answer

bread mold

Question 38

Saprophytes are also called

Accepted Answer

decomposers

Answer

parasites

Answer

ascaris

Answer

predators

Question 39

The three main types of symbiosis are

Accepted Answer

commensalism. parasitism and mutualism

Answer

predation, mimicry and camoflage

Answer

internal and exteranal parasites

Question 40

In the relation of  Mutualism

Accepted Answer

both living organisms get benefit

Answer

one of the living organisms is always harmed

Answer

living organisms get their food from decaying food remains

Answer

one living organism is harmed and the other gets benefits

Question 41

The nodular bacteria give __________ to beans plants.

Accepted Answer

nitrogen from the soil

Answer

photosynthesis

Answer

protein from the soil

Question 42

Bean plants use nitrogen to form

Accepted Answer

protein

Answer

bacteria

Answer

pollenation

Question 43

The bean plants give the nodular bacteria

Accepted Answer

sugar from the photosynthesis process

Answer

nitrogen from photosynthesis

Answer

sugar from the soil

Answer

pollination

Question 44

Insects feed on nectar from flowers. This is an example of

Accepted Answer

mutualism

Answer

commensalism

Answer

saprphytism

Answer

parasitism

Question 45

Insects transfer pollen grain among flowers for

Accepted Answer

pollination

Answer

commensalism

Answer

saprophytism

Answer

parasitism

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