Matter and Its Properties: Interactive Learning Quizzes for Eighth Grade Science

Question 1

Which of these is NOT a physical property of matter?

Accepted Answer

Reactivity

Answer

Density

Answer

Flammability

Answer

Electrical conductivity

Question 2

Which of these is NOT a physical property of matter?

Accepted Answer

Toxicity

Answer

Density

Answer

Melting point

Answer

Flammability

Question 3

What is the term for when a solid transforms directly into a gas?

Accepted Answer

Sublimation

Answer

Melting

Answer

Evaporation

Answer

Condensation

Question 4

Which of these substances has the highest density?

Accepted Answer

Gold

Answer

Air

Answer

Water

Answer

Hydrogen

Question 5

What is the name for the smallest unit of matter that can exist independently?

Accepted Answer

Atom

Answer

Molecule

Answer

Compound

Answer

Electron

Question 6

Which of these is an example of a homogeneous mixture?

Accepted Answer

Salt water

Answer

Salad

Answer

Pizza

Answer

Sand and water

Question 7

What is the SI unit for measuring mass?

Accepted Answer

Kilogram

Answer

Meter

Answer

Liter

Answer

Second

Question 8

Which of these is a chemical change?

Accepted Answer

Burning paper

Answer

Melting ice

Answer

Dissolving salt in water

Answer

Freezing water

Question 9

Which of these has the highest thermal conductivity?

Accepted Answer

Copper

Answer

Wood

Answer

Air

Answer

Plastic

Question 10

What is the process by which water vapor in the air turns back into liquid water?

Accepted Answer

Condensation

Answer

Evaporation

Answer

Sublimation

Answer

Deposition

Question 11

Classify the following: A mixture of sand and salt

Accepted Answer

Heterogeneous mixture

Answer

Element

Answer

Compound

Answer

Homogeneous mixture

Question 12

How do intermolecular forces influence the physical properties of solids, liquids, and gases?

Accepted Answer

Intermolecular forces hold molecules together, affecting properties like melting point, boiling point, and viscosity.

Answer

Intermolecular forces are strongest in gases, weaker in liquids, and weakest in solids.

Answer

Intermolecular forces only affect polar molecules.

Answer

Intermolecular forces have no significant impact on the properties of matter.

Question 13

How does an increase in temperature typically affect the phase of a substance?

Accepted Answer

It usually causes a substance to change from solid to liquid to gas, one phase at a time.

Answer

It causes a substance to change from solid directly to gas.

Answer

It causes an immediate phase change from solid to gas without going through the liquid state.

Answer

It always causes a substance to turn into a liquid, regardless of its starting phase.

Question 14

Explain why chemical changes are typically irreversible, providing a specific example to support your answer.

Accepted Answer

Chemical changes are irreversible because they involve the formation or breaking of bonds between atoms, resulting in the creation of new substances.

Answer

Chemical changes can be reversed because new substances are always produced.

Answer

Chemical changes are irreversible because reactants are always completely consumed.

Answer

Chemical changes are reversible because the products can always be separated.

Question 15

Which of these is a physical property of matter?

Accepted Answer

Density

Answer

Flammability

Answer

Reactivity

Answer

Chemical composition

Question 16

Which of the following is a chemical change in matter?

Accepted Answer

Burning wood

Answer

Melting ice

Answer

Dissolving salt in water

Answer

Freezing water

Question 17

Which property of matter describes its resistance to a change in motion?

Accepted Answer

Inertia

Answer

Mass

Answer

Volume

Answer

Density

Question 18

Which of the following processes changes a liquid into a gas?

Accepted Answer

Vaporization

Answer

Melting

Answer

Freezing

Answer

Condensation

Question 19

Which property of matter measures how tightly packed particles are?

Accepted Answer

Density

Answer

Volume

Answer

Mass

Answer

Temperature

Question 20

Which of the following is a heterogeneous mixture?

Accepted Answer

Granite

Answer

Salt water

Answer

Air

Answer

Gold

Question 21

Which of the following changes in matter cannot be reversed?

Accepted Answer

Burning paper

Answer

Melting ice

Answer

Dissolving sugar in water

Answer

Boiling water

Question 22

Which of the following processes separates components of a mixture according to their different boiling points?

Accepted Answer

Distillation

Answer

Chromatography

Answer

Filtration

Answer

Decantation

Question 23

Which of the following is an example of a chemical property?

Accepted Answer

Reactivity

Answer

Color

Answer

Boiling point

Answer

Solubility

Question 24

What is the term for a change in matter that does not create a new substance?

Accepted Answer

Physical change

Answer

Chemical change

Answer

Phase change

Answer

Sublimation

Question 25

When a gas changes directly to a solid, what is the process called?

Accepted Answer

Deposition

Answer

Evaporation

Answer

Condensation

Answer

Sublimation

Question 26

Which of the following is an example of a homogeneous mixture?

Accepted Answer

Air

Answer

Sand in water

Answer

Chocolate chip cookie dough

Answer

Salad

Question 27

What keeps particles from moving past each other in a solid?

Accepted Answer

Cohesion

Answer

Adhesion

Answer

Gravity

Answer

Electrostatic force

Question 28

Which property allows metals to be hammered into thin sheets?

Accepted Answer

Malleability

Answer

Brittleness

Answer

Ductility

Question 29

Which characteristic is NOT a physical property of matter?

Accepted Answer

Reactivity

Answer

Color

Answer

Density

Answer

Electrical conductivity

Question 30

Which of the following is a characteristic of a physical property?

Accepted Answer

Can be observed or measured without changing the composition of the substance

Answer

Describes how a substance reacts with other substances

Answer

Determines how a substance transforms into a new substance

Answer

Can only be observed under a microscope

Question 31

As a substance changes from a solid to a liquid, what happens to the particles of the substance?

Accepted Answer

They speed up and become less ordered.

Answer

They slow down and become more ordered.

Answer

They remain the same in speed and order.

Answer

They disappear and reappear in a different arrangement.

Question 32

Which of the following processes involves a physical change, meaning the composition of the substance does not change?

Accepted Answer

Melting ice

Answer

Burning wood

Answer

Rusting iron

Answer

Electrolysis of water

Question 33

What is the term for the quantity of space an object or substance takes up?

Accepted Answer

Volume

Answer

Mass

Answer

Density

Answer

Weight

Question 34

Which of the following is an example of a homogeneous mixture?

Accepted Answer

Salt water

Answer

Sand in water

Answer

Salad

Answer

Oil and vinegar

Question 35

Which of the following is a unit of mass in the metric system commonly used in science?

Accepted Answer

Kilogram

Answer

Pound

Answer

Ounce

Answer

Ton

Question 36

What is the process called when a solid turns directly into a gas, skipping the liquid phase?

Accepted Answer

Sublimation

Answer

Evaporation

Answer

Condensation

Answer

Freezing

Question 37

Which of the following is not considered a state of matter?

Accepted Answer

Energy

Answer

Solid

Answer

Liquid

Answer

Gas

Question 38

What is the smallest unit of an element that maintains its unique chemical properties?

Accepted Answer

Atom

Answer

Molecule

Answer

Ion

Answer

Compound

Question 39

Which of the following is an example of a chemical change?

Accepted Answer

Burning wood

Answer

Melting ice

Answer

Dissolving salt in water

Answer

Boiling water

Question 40

According to the law of conservation of mass, what happens to the total mass of a closed system undergoing a chemical reaction?

Accepted Answer

Mass is neither created nor destroyed.

Answer

Mass is always created.

Answer

Mass is always lost.

Answer

Mass is only conserved in open systems.

Question 41

Which substance has the greatest density, meaning it is the most tightly packed?

Accepted Answer

Iron

Answer

Air

Answer

Water

Answer

Styrofoam

Question 42

What type of mixture is uniform in composition throughout?

Accepted Answer

Homogeneous mixture

Answer

Heterogeneous mixture

Answer

Pure substance

Answer

Colloid

Question 43

When a solid changes to a liquid, how do its particles' arrangement and movement change?

Accepted Answer

Particles spread out more and move faster.

Answer

Particles spread out more and move slower.

Answer

Particles move closer together and move faster.

Answer

Particles move closer together and move slower.

Question 44

Burning a piece of paper creates ash and smoke. This is a:

Accepted Answer

Chemical change

Answer

Nuclear change

Answer

Physical change

Answer

Phase transition

Question 45

What is NOT a characteristic of matter?

Accepted Answer

It can be created or destroyed

Answer

It has mass

Answer

It is made up of tiny particles called atoms

Answer

It takes up space

Question 46

Which of these would NOT help you figure out the physical properties of an unknown substance?

Accepted Answer

Testing its reaction with acid

Answer

Looking at its color

Answer

Measuring its melting point

Answer

Measuring how dense it is

Question 47

What is the process called when a liquid turns into a gas?

Accepted Answer

Evaporation

Answer

Condensation

Answer

Freezing

Answer

Sublimation

Question 48

How are the particles in a solid arranged?

Accepted Answer

Closely packed and vibrating in fixed positions

Answer

Far apart and moving randomly

Answer

Far apart and vibrating in fixed positions

Answer

Closely packed and moving freely

Question 49

A mixture is created when:

Accepted Answer

Two or more substances are combined without changing their chemical makeup

Answer

Two or more substances react chemically

Answer

A new substance is formed

Question 50

If you mix two clear liquids and they bubble up and change color, this is an example of:

Accepted Answer

A chemical change

Answer

A phase transition

Answer

A physical change

Answer

A nuclear change