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Science Quiz on Matter and Forces

Total questions: 45

Worksheet time: 23mins

Name
Class
Date
1.

A stone, water, and air are placed in separate containers. Which property do ALL three share?

a)

Shape

b)

Color

c)

Mass

d)

Texture

2.

Why does water take the shape of its container but keep the same amount?

a)

It is a gas

b)

It is a liquid

c)

It is a solid

d)

It has no mass

3.

Which observation shows that air occupies space?

a)

It can be smelled

b)

It fills an empty balloon

c)

It is invisible

d)

It is light

4.

A student measures 500 mL of juice and pours it into two 250 mL cups. What stays the same?

a)

Shape

b)

Temperature

c)

Volume

d)

Container

5.

Which change shows heat being added to matter?

a)

Water freezing

b)

Ice melting

c)

Vapor condensing

d)

Gas turning to liquid

6.

Why is a balance better than a measuring cylinder to test if air has mass?

a)

It measures temperature

b)

It measures volume

c)

It compares mass

d)

It shows shape

7.

Food must be broken down into small particles so that it can be _____.

a)

Stored

b)

Absorbed

c)

Thrown away

d)

Smelled

8.

If the lungs stop working properly, which process is affected first?

a)

Digestion

b)

Breathing

c)

Reproduction

d)

Circulation

9.

Which feature best helps mammals care for their young?

a)

Laying eggs

b)

Producing milk

c)

Having scales

d)

Cold-blooded body

10.

Which classification is based on how animals reproduce?

a)

Insects and birds

b)

Mammals and reptiles

c)

Live-bearing and egg-laying animals

d)

Herbivores and carnivores

11.

Why do some plants have thorns?

a)

To attract insects

b)

To store water

c)

To protect from animals

d)

To make food

12.

A plant with thick stems and small leaves most likely lives in a place with _____.

a)

Heavy rainfall

b)

Cold climate

c)

Little water

d)

Rich soil

13.

When you push a book across a table, the book moves in the same direction as the push. This shows that _____.

a)

Gravity changes direction

b)

Contact forces affect motion

c)

Magnetism is acting

d)

Electricity is present

14.

Why is it harder to slide a box on rough ground than on smooth tiles?

a)

Gravity is stronger

b)

Friction is greater

c)

The box is heavier

d)

Air resistance increases

15.

Which situation best shows gravity acting?

a)

Magnet pulling iron

b)

Balloon sticking to hair

c)

Fruit falling from a tree

d)

Bulb lighting up

16.

A student claims that air has no mass because it cannot be seen. Which investigation best disproves this?

a)

Smelling air

b)

Measuring air temperature

c)

Comparing inflated and deflated balloons on a balance

d)

Pouring air into water

17.

Why does gas expand to fill its container while a liquid does not?

a)

Gas particles are heavier

b)

Gas particles move freely and are far apart

c)

Liquids have no particles

d)

Liquids are hotter

18.

Why is a thermometer needed when studying changes of state?

a)

To measure volume

b)

To measure mass

c)

To observe temperature changes

d)

To identify shape

19.

If water is heated continuously, which sequence is correct?

a)

Liquid → solid → gas

b)

Solid → gas → liquid

c)

Solid → liquid → gas

d)

Gas → liquid → solid

20.

Why does the small intestine absorb nutrients better than the stomach?

a)

It is shorter

b)

It has thicker walls

c)

It has villi that increase surface area

d)

It holds food longer

21.

Which system works closely with the respiratory system?

a)

Digestive

b)

Circulatory

c)

Reproductive

d)

Nervous

22.

Which comparison between birds and mammals is correct?

a)

Both lay eggs

b)

Both produce milk

c)

Both are warm-blooded

d)

Both have scales

23.

Why are amphibians classified separately from reptiles?

a)

They have feathers

b)

They live only on land

c)

They depend on water for part of their life cycle

d)

They give birth to live young

24.

Which plant structure allows reproduction without seeds?

a)

Leaf

b)

Flower

c)

Rhizome

d)

Thorn

25.

Why is mimicry an effective survival strategy?

a)

It helps animals fly

b)

It confuses predators

c)

It improves digestion

d)

It increases size

26.

A student drops a heavy book and a sheet of paper at the same time. The paper falls slower. What is the BEST explanation?

a)

Gravity affects light objects less

b)

Air resistance affects the paper more

c)

Heavier objects fall faster

d)

The paper has no mass

27.

Design an investigation to test whether liquids have mass. Which is ESSENTIAL?

a)

Thermometer

b)

Balance

c)

Ruler

d)

Stopwatch

28.

Why does soil erosion increase when vegetation is removed?

a)

Soil becomes heavier

b)

Roots no longer hold soil

c)

Rocks disappear

d)

Rain stops

29.

A sealed syringe is filled with air. When the plunger is pushed inward, which property of gas is demonstrated?

a)

Gas has definite volume

b)

Gas particles attract strongly

c)

Gas can be compressed

d)

Gas has fixed shape

30.

A student heats ice in a beaker until steam forms. Which sequence best explains the changes?

a)

Freezing → Melting → Condensation

b)

Melting → Evaporation → Condensation

c)

Melting → Evaporation

d)

Freezing → Evaporation

31.

Two objects of different masses are dropped at the same time. They hit the ground together. What does this show?

a)

Gravity affects heavier objects more

b)

Air resistance is absent

c)

Gravity acts equally on objects

d)

Mass does not affect gravity

32.

Which investigation best proves that air has mass?

a)

Measuring temperature of air

b)

Comparing inflated and deflated balloon on a balance

c)

Measuring volume of air

d)

Observing air movement

33.

Why does heating cause matter to change state?

a)

It changes the chemical composition

b)

It increases particle movement until bonds are overcome

c)

It decreases mass

d)

It makes objects invisible

34.

Why does gravity affect all objects regardless of mass?

a)

Only heavy objects are affected

b)

All objects experience force proportional to their mass

c)

Only light objects are affected

d)

Gravity depends on shape

35.

How can static electricity be demonstrated using simple materials?

a)

Use a battery and bulb

b)

Rub a balloon on hair and make it stick to a wall

c)

Drop a paper on the floor

d)

Shake hands with a friend

36.

Why does a charged balloon stick to a wall?

a)

The wall is charged

b)

The balloon is heavier

c)

Opposite charges attract

d)

Gravity pushes it

37.

How does an electromagnet show that electricity and magnetism are related?

a)

It produces heat

b)

Electric current flowing through a wire creates a magnetic field

c)

It makes a loud noise

d)

It lights a bulb

38.

How do plant adaptations show response to environmental challenges?

a)

Plants move to another place

b)

Plants develop thorns, deep roots, or bulbs for survival

c)

Plants stop growing

d)

Plants produce gas

39.

Why do some plants store food in bulbs or tubers?

a)

To reproduce only

b)

To survive periods of scarcity

c)

To absorb sunlight

d)

To make flowers bloom immediately

40.

How does environmental change affect animal survival?

a)

Animals are never affected

b)

Some species die or adapt (e.g., camouflage, migration)

c)

Only plants adapt

d)

Animals gain mass

41.

Why do storm signals increase as a cyclone strengthens?

a)

To warn people about increasing danger

b)

Signals are random

c)

To measure rainfall

d)

Signals indicate wind only

42.

How can understanding weather patterns help reduce disaster risks?

a)

It cannot

b)

By preparing evacuation, shelters, and safety measures

c)

By ignoring signals

d)

By stopping storms

43.

Why do eclipses not happen every month?

a)

Moon is too small

b)

Moon’s orbit is tilted relative to Earth’s orbit

c)

Sun moves around Moon

d)

Earth stops moving

44.

How does Earth’s rotation differ from its revolution?

a)

Rotation is spinning on axis; revolution is orbiting the Sun

b)

Both are the same

c)

Rotation takes 1 year; revolution takes 24 hours

d)

Earth only rotates

45.

Why does the Moon always show the same face to Earth?

a)

Moon rotates once for each orbit around Earth (synchronous rotation)

b)

Moon does not rotate

c)

Earth moves faster

d)

Moon disappears sometimes