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Quiz on the Law of Conservation of Matter

Total questions: 42

Worksheet time: 21mins

Name
Class
Date
1.

What does the Law of Conservation of Matter state?

a)

Matter can vanish during chemical reactions.

b)

Matter cannot be created or destroyed, only changed in form.

c)

Matter can only exist in solid form.

d)

Matter can increase or decrease depending on temperature.

2.

Which of the following experiments shows conservation of matter?

a)

Boiling water to create steam

b)

Burning paper to ash and smoke

c)

Dissolving sugar in water and evaporating it back into crystals

d)

All of the above

3.

What happens to sugar when it dissolves in water?

a)

It disappears forever.

b)

It changes into a gas.

c)

It is still present but in a different form.

d)

It changes into a new substance.

4.

What is matter made of?

a)

Liquids

b)

Atoms

c)

Gases

d)

Solids

5.

Which state of matter has particles arranged in a fixed pattern?

a)

Gas

b)

Liquid

c)

Solid

d)

Plasma

6.

What allows liquids to flow and take the shape of their container?

a)

The atoms are tightly bound together.

b)

The atoms move freely and are loosely connected.

c)

The atoms are in a fixed pattern.

d)

The atoms are compressed.

7.

Which of the following is an example of a gas?

a)

Water

b)

Steel

c)

Water vapor

d)

Paper

8.

What form does water take when it boils?

a)

Solid

b)

Liquid

c)

Gas

d)

Plasma

9.

Gases are invisible but can be observed through their effects, like filling a balloon.

a)

True

b)

False

10.

Liquids and gases both have particles that are tightly bound together.

a)

True

b)

False

11.

Solid matter can never turn into a liquid.

a)

True

b)

False

12.

Melting is the process where a solid becomes a liquid.

a)

True

b)

False

13.

Antoine Lavoisier discovered the law of conservation of mass in 1885.

a)

True

b)

False

14.

The conservation of matter applies only to solids.

a)

True

b)

False

15.

The weight of materials remains the same before and after a chemical reaction.

a)

True

b)

False

16.

What happens to the total amount of matter during a chemical reaction or physical change? Such as an ice cube weighs the same after it melts into liquid water.

a)
Matter is created during the reaction.
b)
The total amount of matter increases.
c)
The total amount of matter remains constant.
d)
The total amount of matter decreases.
17.

What is one way scientists can observe that gases exist, even though they are invisible?

a)
By measuring the temperature of the gas directly.
b)
By observing color changes in the air.
c)
By measuring changes in pressure or volume.
d)
By capturing gas in a visible container.
18.

Give an example of a solid, liquid, and gas you might encounter in everyday life.

a)
Solid: Air, Liquid: Oil, Gas: Salt
b)
Solid: Water, Liquid: Ice, Gas: Carbon Dioxide
c)
Solid: Ice, Liquid: Water, Gas: Oxygen
d)
Solid: Steam, Liquid: Sand, Gas: Mercury
19.

What happens to the atoms in a gas compared to a solid?

a)
Atoms in a gas are more spread out and move freely, while in a solid, they are closely packed and vibrate in fixed positions.
b)
Atoms in a gas are stationary and closely packed together.
c)
Atoms in a solid move freely and are spread out like in a gas.
d)
Atoms in a gas are tightly packed and vibrate in fixed positions.
20.

How does the state of matter change when heating water on a stove?

a)
The state of matter changes from gas to liquid.
b)
The state of matter remains unchanged.
c)
The state of matter changes from liquid to gas.
d)
The state of matter changes from solid to liquid.
21.

What is an everyday example of matter changing from one form to another?

a)
Water freezing into ice.
b)
Steam condensing into liquid water.
c)
Ice melting into water.
d)
Water evaporating into vapor.
22.

What does the Law of Conservation of Matter state?

a)

Matter cannot be created or destroyed, only changed in form.

b)

Matter can be created and destroyed.

c)

Matter is always in a solid state.

d)

Matter is only present in living organisms.

23.

Which of the following experiments shows conservation of matter?

a)

Burning a candle

b)

Melting ice

c)

Rusting iron

d)

All of the above

24.

What happens to sugar when it dissolves in water?

a)

It disappears completely.

b)

It is still present but in a different form.

c)

It turns into a gas.

d)

It becomes a solid.

25.

What is matter made of?

a)

Atoms

b)

Molecules

c)

Cells

d)

Energy

26.

Which state of matter has particles arranged in a fixed pattern?

a)

Liquid

b)

Gas

c)

Solid

d)

Plasma

27.

What allows liquids to flow and take the shape of their container?

a)

The atoms are tightly packed.

b)

The atoms move freely and are loosely connected.

c)

The atoms are in a fixed position.

d)

The atoms are solid.

28.

Which of the following is an example of a gas?

a)

Ice

b)

Water

c)

Water vapor

d)

Salt

29.

What form does water take when it boils?

a)

Liquid

b)

Solid

c)

Gas

d)

Plasma

30.

Gases are invisible but can be observed through their effects, like filling a balloon.

a)

True

b)

False

31.

Liquids and gases both have particles that are tightly bound together.

a)

True

b)

False

32.

Solid matter can never turn into a liquid.

a)

True

b)

False

33.

Melting is the process where a solid becomes a liquid.

a)

True

b)

False

34.

Antoine Lavoisier discovered the law of conservation of mass in 1885.

a)

True

b)

False

35.

The conservation of matter applies only to solids.

a)

True

b)

False

36.

The weight of materials remains the same before and after a chemical reaction.

a)

True

b)

False

37.

What happens to the total amount of matter during a chemical reaction or physical change?

a)
Matter is created during the reaction.
b)
The total amount of matter decreases.
c)
The total amount of matter remains constant.
d)
The total amount of matter increases.
38.

What is one way scientists can observe that gases exist, even though they are invisible?

a)
By measuring the temperature of the gas directly.
b)
By observing the color changes in the gas.
c)
By detecting sound waves produced by the gas.
d)
By observing pressure changes or the movement of objects caused by gas.
39.

Give an example of a solid, liquid, and gas you might encounter in everyday life.

a)
Solid: Ice, Liquid: Water, Gas: Oxygen
b)
Solid: Air, Liquid: Rock, Gas: Helium
c)
Solid: Steam, Liquid: Sand, Gas: Mercury
d)
Solid: Water, Liquid: Ice, Gas: Carbon Dioxide
40.

What happens to the atoms in a gas compared to a solid?

a)
Atoms in a gas are tightly packed and vibrate in place.
b)
Atoms in a gas are stationary and form a rigid structure.
c)
Atoms in a gas are more spread out and move freely, while in a solid, they are closely packed and vibrate in fixed positions.
d)
Atoms in a solid move freely and are spread out like in a gas.
41.

How does the state of matter change when heating water on a stove?

a)
The state of matter changes from liquid to gas.
b)
The state of matter changes from solid to liquid.
c)
The state of matter remains unchanged.
d)
The state of matter changes from gas to liquid.
42.

What is an everyday example of matter changing from one form to another?

a)
Water evaporating into vapor.
b)
Ice melting into water.
c)
Steam condensing into liquid water.
d)
Water freezing into ice.