Science Quiz for Secondary School Students

Question 1

Which of the following is the equation used to calculate a substance’s density?

Accepted Answer

D=M/V

Answer

D=V/M

Answer

D=M+V

Answer

D=V×M

Question 2

What happens to a solid object with a density that is less than the density of water when it is placed in water?

Accepted Answer

The object floats on top of the water.

Answer

The object dissolves in water.

Answer

The object is half immersed.

Answer

The object sinks to the bottom.

Question 3

Which of the following is the best for expressing the density of a solid?

Accepted Answer

g/cm³

Answer

g/mL

Answer

m³/kg

Answer

N/ cm³

Question 4

Which physical property of matter describes the relationship between volume and mass?

Accepted Answer

density

Answer

ductility

Answer

reactivity

Answer

weight

Question 5

Why does ice float on water?

Accepted Answer

Ice has a lower density than water.

Answer

Ice has a higher density than water.

Answer

Ice is a solid.

Answer

Ice is colder than water.

Question 6

If you have 5 ml of liquid that has a mass of 20g, find the density of the liquid.

Accepted Answer

4 g/mL

Answer

0.79 mL/g

Answer

0.79 g/mL

Answer

1.26 mL/g

Question 7

To compare the densities of water and oil, pour them into a container and observe how they …………………………….

Accepted Answer

separate into layers

Answer

change colour

Answer

evaporate quickly

Answer

create an odor

Question 8

What units would you use to measure liquid volume in an experiment?

Accepted Answer

litres or millilitres

Answer

grams or kilograms

Answer

meters or centimeters

Answer

newtons

Question 9

Ships are usually very big and heavy. Yet they float on water. What is the reason for this?

Accepted Answer

The hollow shape of the ship

Answer

The huge size of the ship

Answer

The weight of the ship

Answer

The colour of the ship

Question 10

In a beaker of two liquids, solid X floats on liquid Y, but sinks in liquid Z. Which of the following is true?

Accepted Answer

Liquid Z is denser than liquid Y

Answer

Liquid Z is water and Liquid Y is oil

Answer

Solid X is less dense than liquid Z

Answer

Liquid Y is denser than liquid Z

Question 11

When heat is applied to a substance, its density …………………………. Because its volume is ………………..

Accepted Answer

decreases, increased

Answer

decreases, decreased

Answer

increases, decreased

Answer

increases, increased

Question 12

The volume of a substance X is twice that of another substance Y. Both the substances have the same mass. What can we infer about their densities?

Accepted Answer

The density of X is half that of Y

Answer

The density of X is twice that of Y

Answer

The density of Y is half that of X

Answer

X and Y have the same density

Question 13

A block made of substance X sinks in pure water, but floats on sea water. Which of the following statements is correct?

Accepted Answer

The density of the block is greater than pure water but less than sea water.

Answer

The block is heavier in pure water than in sea water.

Answer

The block absorbs pure water causing it to sink but it does not absorb sea water.

Answer

The density of the block is less than pure water and more than sea water.

Question 14

Which of the following is not classified under plant kingdom?

Accepted Answer

Fungi

Answer

Conifers

Answer

Ferns

Answer

Mosses

Question 15

What do whales and sardines have in common?

Accepted Answer

They have streamlined body shape

Answer

They are cold-blooded

Answer

They have scales

Answer

They breathe through lungs

Question 16

Which of the following pairs of animals are cold-blooded?

Accepted Answer

Snake and frog

Answer

Emu and crocodile

Answer

Shark and whale

Answer

Dolphin and tortoise

Question 17

Which of the following descriptions of a scorpion is correct?

Accepted Answer

It is an invertebrate with jointed legs.

Answer

It is a vertebrate with jointed legs.

Answer

It is a vertebrate with non-jointed legs.

Answer

It is an invertebrate with non-jointed legs.

Question 18

Which of the following groups have segmented exo-skeleton?

Accepted Answer

insects

Answer

mammals

Answer

vertebrates

Answer

snakes

Question 19

Organisms can be classified according to certain basic features. Which of the following is not considered a basic feature?

Accepted Answer

The colour of the animal

Answer

The body structure of the animal

Answer

Reproduction of the animal

Answer

The way the animal feeds

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Science Quiz for Secondary School Students