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

Question 1

What happens to the particles of a gas when it is compressed?

Accepted Answer

They move closer together

Answer

They move farther apart

Answer

They change shape

Answer

They change size

Question 2

What is the difference between a mixture and a solution?

Accepted Answer

A solution has particles that are evenly distributed, while a mixture does not.

Answer

A mixture has particles that are evenly distributed, while a solution does not.

Answer

A mixture has particles that are not evenly distributed, while a solution does.

Answer

A solution has particles that are not evenly distributed, while a mixture does.

Question 3

What is the boiling point of water at sea level in Celsius?

Accepted Answer

100 degrees Celsius

Answer

0 degrees Celsius

Answer

212 degrees Celsius

Answer

373 Kelvin

Question 4

What is the freezing point of water at sea level in Celsius?

Accepted Answer

0 degrees Celsius

Answer

100 degrees Celsius

Answer

212 degrees Celsius

Answer

373 Kelvin

Question 5

What is the process called when a gas changes directly to a solid?

Accepted Answer

Deposition

Answer

Melting

Answer

Freezing

Answer

Sublimation

Question 6

Which of the following is NOT a fundamental property of matter?

Accepted Answer

Color

Answer

Mass

Answer

Volume

Answer

Density

Question 7

Which physical change involves a change in the size or shape of a substance without changing its chemical composition?

Accepted Answer

Folding

Answer

Melting

Answer

Burning

Answer

Evaporation

Question 8

When a solid changes directly into a gas, the process is called:

Accepted Answer

Sublimation

Answer

Melting

Answer

Freezing

Answer

Boiling

Question 9

Which of the following is a heterogeneous mixture?

Accepted Answer

Blood

Answer

Salt water

Answer

Air

Answer

Sugar dissolved in water

Question 10

Which of the following properties is characteristic of metals?

Accepted Answer

High electrical conductivity

Answer

Low melting point

Answer

Flexibility

Answer

Transparency

Question 11

When two or more substances combine to form a new substance with different properties, the process is known as:

Accepted Answer

Chemical change

Answer

Physical change

Answer

Phase change

Answer

Solution formation

Question 12

Which of the following is a chemical property?

Accepted Answer

Flammability

Answer

Density

Answer

Solubility

Answer

Boiling point

Question 13

The process by which a gas dissolves into a liquid is called:

Accepted Answer

Dissolution

Answer

Evaporation

Answer

Condensation

Answer

Precipitation

Question 14

What happens to the particles of a substance when it changes from a liquid to a gas?

Accepted Answer

They speed up and move further apart.

Answer

They slow down and move closer together.

Answer

They change shape but not size.

Answer

They become electrically charged.

Question 15

Which of these mixtures is homogeneous?

Accepted Answer

Salt dissolved in water

Answer

Sand in water

Answer

Oil and vinegar

Answer

Iron filings and sulfur powder

Question 16

What is the force that holds atoms together to form molecules called?

Accepted Answer

Covalent bond

Answer

Ionic bond

Answer

Metallic bond

Answer

Hydrogen bond

Question 17

Which of the following is the smallest unit of an element?

Accepted Answer

Atom

Answer

Molecule

Answer

Ion

Answer

Compound

Question 18

What is the process called when a solid changes directly into a gas without passing through the liquid state?

Accepted Answer

Sublimation

Answer

Melting

Answer

Freezing

Answer

Condensation

Question 19

What is the difference between a solute and a solvent?

Accepted Answer

The solute is dissolved in the solvent.

Answer

The solvent is dissolved in the solute.

Answer

The solute is a solid and the solvent is a liquid.

Answer

The solvent is a gas and the solute is a liquid.

Question 20

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

Accepted Answer

Rusting iron

Answer

Boiling water

Answer

Freezing water

Answer

Melting ice

Question 21

A substance that has a definite shape and volume is known as a:

Accepted Answer

Solid

Answer

Gas

Answer

Liquid

Answer

Mixture

Question 22

Which of the following processes involves a chemical change?

Accepted Answer

Burning wood

Answer

Melting ice

Answer

Dissolving sugar in water

Answer

Condensing water vapor

Question 23

A mixture of salt and water is an example of a:

Accepted Answer

Solution

Answer

Colloid

Answer

Suspension

Answer

Compound

Question 24

The smallest unit of an element that retains its chemical properties is called a/an:

Accepted Answer

Atom

Answer

Molecule

Answer

Compound

Answer

Ion

Question 25

Which of the following is a homogeneous mixture?

Accepted Answer

Salt water

Answer

Sand in water

Answer

Milk

Answer

Salad dressing

Question 26

The process of directly changing a solid into a gas is known as:

Accepted Answer

Sublimation

Answer

Melting

Answer

Freezing

Answer

Condensation

Question 27

Which of these describes how a substance changes when it reacts with another substance?

Accepted Answer

Chemical reactivity

Answer

Density

Answer

Flammability

Answer

Boiling point

Question 28

Which of the following is a defining feature of gases?

Accepted Answer

Indefinite shape and volume

Answer

Fixed shape and volume

Answer

Indefinite shape and fixed volume

Answer

Fixed shape and indefinite volume

Question 29

When liquid water transforms into vapor, it undergoes a:

Accepted Answer

Physical change

Answer

Chemical change

Answer

Nuclear change

Answer

Condensation

Question 30

What is the process when a substance transitions directly from a solid to a gas?

Accepted Answer

Sublimation

Answer

Melting

Answer

Deposition

Answer

Vaporization

Question 31

Which of the following is NOT a homogeneous mixture?

Accepted Answer

Milk

Answer

Tap water

Answer

Air

Answer

Vinegar

Question 32

In a salt solution, what is the solute?

Accepted Answer

Salt

Answer

Water

Answer

Sugar

Answer

Sand

Question 33

Which example represents a chemical element?

Accepted Answer

Gold

Answer

Water

Answer

Sodium chloride

Answer

Air

Question 34

What is the fundamental difference between ionic and covalent bonds?

Accepted Answer

Ionic bonds involve electron transfer, while covalent bonds involve electron sharing.

Answer

Covalent bonds involve electron transfer, while ionic bonds involve electron sharing.

Answer

Ionic and covalent bonds are essentially the same.

Answer

Ionic bonds are weaker than covalent bonds.

Question 35

What is an ion?

Accepted Answer

An atom or molecule with an electrical charge

Answer

An atom or molecule with no charge

Answer

A positively charged particle

Answer

A negatively charged particle

Question 36

When a liquid turns into a gas, what happens to its particles?

Accepted Answer

They move faster and spread out.

Answer

They become more tightly packed.

Answer

They become negatively charged.

Answer

They change their shape.

Question 37

Which statement about mixtures is NOT true?

Accepted Answer

Their composition is always the same.

Answer

Their components can be separated by physical means.

Answer

Their components keep their original identities.

Answer

They have different properties from pure substances.

Question 38

Which structure in matter has particles tightly packed in a regular pattern?

Accepted Answer

Crystalline

Answer

Amorphous

Answer

Gaseous

Answer

Liquid

Question 39

What process involves a solid changing directly into a gas without becoming a liquid?

Accepted Answer

Sublimation

Answer

Deposition

Answer

Condensation

Answer

Evaporation

Question 40

What is the smallest particle of an element that can exist?

Accepted Answer

Atom

Answer

Molecule

Answer

Compound

Answer

Ion

Question 41

A physical change involves a change in the:

Accepted Answer

Properties like shape, size, or color of a substance

Answer

Chemical structure of a substance

Answer

Mass of a substance

Answer

Volume of a substance

Question 42

Which of the following is a mixture?

Accepted Answer

Salt water

Answer

Diamond

Answer

Pure water

Answer

Gold

Question 43

A solution is a:

Accepted Answer

Homogeneous mixture of two or more substances

Answer

Compound

Answer

Pure substance

Answer

Heterogeneous mixture

Question 44

The smallest unit of an element that retains the properties of that element is a:

Accepted Answer

Atom

Answer

Compound

Answer

Ion

Answer

Molecule

Question 45

Which of the following factors does NOT affect the solubility of a solid in a liquid?

Accepted Answer

Pressure

Answer

Surface area

Answer

Amount of solid

Answer

Temperature

Question 46

A change in state from a liquid to a gas is called:

Accepted Answer

Evaporation

Answer

Sublimation

Answer

Condensation

Answer

Melting

Question 47

A student mixes salt and water. The salt disappears, but the water remains clear. What kind of change has happened?

Accepted Answer

Physical change

Answer

No change

Answer

Chemical change

Answer

Nuclear change

Question 48

Which of these is NOT a basic property of matter?

Accepted Answer

Taste

Answer

Mass

Answer

Volume

Answer

Density

Question 49

When a piece of iron is heated until it glows red, what happens to the iron?

Accepted Answer

It changes physically.

Answer

It undergoes a chemical change.

Answer

It becomes a different element.

Answer

It is destroyed.

Question 50

Which state of matter has a definite volume but can change its shape?

Accepted Answer

Liquid

Answer

Gas

Answer

Solid

Question 51

What makes a solution special?

Accepted Answer

One substance dissolves evenly into another.

Answer

The substances are not chemically bonded.

Answer

The substances can be easily separated.

Answer

The substances are in different states of matter.

Question 52

Which of these is an example of a chemical change?

Accepted Answer

Burning wood

Answer

Melting ice

Answer

Cutting paper

Answer

Boiling water

Question 53

What property of matter describes how much space it takes up?

Accepted Answer

Volume

Answer

Temperature

Answer

Density

Answer

Mass

Question 54

A substance that can't be broken down into simpler substances is called a(n):

Accepted Answer

Element

Answer

Compound

Answer

Mixture

Answer

Solution

Question 55

What is a characteristic of a gas?

Accepted Answer

It takes the shape of its container.

Answer

It has a fixed volume.

Answer

It has a fixed shape.

Answer

It cannot be compressed.