Free Printable Matter and its Interactions Unit Tests Review

Free Printable Worksheets

Worksheets

Matter and its Interactions Unit Tests Review

Total questions: 105

Worksheet time: 2hrs 54mins

Name

Class

Date

1.

All matter is made of what

a)

energy

b)

atoms

c)

electrons

d)

compounds

2.

The positive particles of an atom are

a)

electrons

b)

positrons

c)

neutrons

d)

protons

3.

The central region of an atom where its neutrons and protons are is its

a)

nucleus

b)

electron cloud

c)

core

d)

center

4.

An atom with atomic number 6 would have how many protons

a)

6

b)

12

c)

3

d)

cannot be determined

5.

Particles in an atom that are neutral and have no charge are

a)

negatrons

b)

electrons

c)

neutrons

d)

protons

6.

What is the atomic number for an element with 3 protons?

a)

2

b)

1

c)

3

d)

6

7.

A particle that moves around the nucleus is a(n)...

a)

Proton

b)

Neutron

c)

Electron

d)

Quark

8.

In the modern periodic table, elements are arranged by:

a)

atomic mass

b)

atomic number

c)

valence electrons

d)

number of isotopes

9.

If an atom has 10 protons, 10 neutrons, and 10 electrons, what is the mass of the atom?

a)

10

b)

20

c)

30

10.

What subatomic particle(s) would be found orbiting the nucleus?

a)

Neutrons only

b)

Electrons only

c)

Protons and Neutrons

d)

Protons and Electrons

11.

True/False: Compounds are made of two or more different elements.

a)

True

b)

False

12.

Electrons are___________

a)

Extremely small even in comparison to protons.

b)

part of the nuclues.

c)

Super Positive, like cheerleaders!

d)

very large

13.

Anything that has mass and takes up space is called

a)

heterogeneous

b)

homogeneous

c)

matter

d)

density

14.

An atoms overall charge is

a)

positive

b)

depends on its mood

c)

neutral

d)

negative

15.

How many Hydrogen are in 4H₂O?

a)

6

b)

8

c)

2

d)

4

16.

How many Oxygen are in H₂O?

a)

1

b)

2

c)

0

d)

4

17.

How many Magnesium are in 10MgCl₂?

a)

10

b)

5

c)

20

18.

2H₂ + O₂ ----> 2H₂O What is the product?

a)

------>

b)

2H₂O

c)

2H₂+ O₂

19.

2H₂ + O₂--------> 2H₂O What are the reactants?

a)

----->

b)

2H₂O

c)

2H₂ +O₂

20.

How many O's are in Al₂(SO₄)₃

a)

4

b)

12

c)

7

d)

24

21.

Number of H in 3(NH₄)₂CrO₄

a)

4

b)

2

c)

8

d)

24

22.

How many atoms are there TOTAL in:
H₂SO₄

a)

6

b)

5

c)

7

d)

3

23.

How many elements are in C₆H₁₂O₆?

a)

1

b)

2

c)

3

d)

4

24.

How many Sodium (Na) are in 6NaCl?

a)

1

b)

12

c)

6

25.

Number of N in (NH₄)₂CrO₄

a)

1

b)

2

c)

8

d)

16

26.

How many Sodium (Na) are in 6NaCl?

a)

1

b)

12

c)

6

27.

Number of N in (NH₄)₂CrO₄

a)

1

b)

2

c)

8

d)

16

28.

A subscript is the small number below a(n) ________ that tells the number of _______ of that element.

a)

element symbol; atoms

b)

atom; element symbol

c)

subscript; protons

d)

compound; elements

29.

A physical change...

a)

changes the physical properties of an object, but does not create a new substance.

b)

creates a new substance and cannot be undone.

30.

A chemical change

a)

changes the physical properties of an object, but does not create a new substance.

b)

creates a new substance and cannot be undone.

31.

Is this an example of a physical or chemical change?

a)

physical

b)

chemical

32.

Is this an example of a physical or chemical change?

a)

physical

b)

chemical

33.

Is this an example of a physical or chemical change?

a)

physical

b)

chemical

34.

Is this an example of a physical or chemical change?

a)

physical

b)

chemical

35.

Is this an example of a physical or chemical change?

a)

physical

b)

chemical

36.

Is this an example of a physical or chemical change?

a)

physical

b)

chemical

37.

Is this an example of a physical or chemical change?

a)

physical

b)

chemical

38.

Is this an example of a physical or chemical change?

a)

physical

b)

chemical

39.

Is this an example of a physical or chemical change?

a)

physical

b)

chemical

40.

Is this an example of a physical or chemical change?

a)

physical

b)

chemical

41.

Is this an example of a physical or chemical change?

a)

physical

b)

chemical

42.

Is this an example of a physical or chemical change?

a)

physical

b)

chemical

43.

A student mixes yellow powder with water. Which observation would prove a CHEMICAL change occurred?

a)

The powder DISSOLVED in the water

b)

The water turned the COLOR yellow

c)

The bag's TEMPERATURE changed

d)

The STATE OF MATTER changed

44.

Which of the following options provides evidence of a CHEMICAL change?

a)

Wood is burned releasing ash and smoke

b)

Rocks separate when soil is sifted

c)

Water turns to ice when you put it in the freezer

d)

Salt dissolves in water

45.

Which of the following examples provides evidence of a PHYSICAL change?

a)

Wood is burned and releases ash and smoke

b)

Iron rusts over time

c)

When mixed, baking soda and vinegar form gas bubbles

d)

A piece of paper changes shape when you rip it up

46.

A white tablet is dropped into water. The water becomes cloudy and bubbles are produced. What type of change has occurred?

a)

Physical change

b)

Chemical change

c)

No change

47.

Which observations prove a chemical change has occurred?

a)

Dissolving and expected color change

b)

Mixing and dissolving

c)

State of matter change and boiling water bubbles

d)

Unexpected color change and temperature change

48.

When mixing milk and vinegar, a white, chunky, solid substance is formed. What has occurred?

a)

Physical change: state of matter

b)

Chemical change: production of a solid

c)

Physical change: freezing

d)

Chemical change: rust

49.

Physical properties....

a)

change the matter when studied

b)

can be observed and measured without changing the matter being studied

c)

include the ability to burn and rust

d)

are useless unless studied in a lab

50.

______________________ can only be recognized when substances react or do not react chemically with one another.

a)

Physical properties

b)

Chemical properties

c)

Flammable properties

d)

Colorful properties

51.

Flammability means the ability to _______ and is a _________ property.

a)

melt; chemical

b)

rust; physical

c)

change; physical

d)

burn; chemical

52.

Which of the following is not a chemical property?

a)

rusting

b)

boiling

c)

rotting

d)

burning

53.

Which is an example of a physical property?

a)

ability to react with acid

b)

state of matter

c)

flammability

d)

ability to react with oxygen

54.

All of the following are examples of physical properties EXCEPT

a)

Density

b)

Heat conductivity

c)

pH (acidic or basic)

d)

Boiling point

55.

Choose the one that is a chemical property

a)

Magnetism

b)

Size

c)

Color

d)

Reactivity with water

56.

What is the outcome of observing a chemical property?

a)

Nothing

b)

A new substance is formed with different properties

c)

NaCl

d)

A rise in thermal conductivity

57.

Melting point is...

a)

The temperature at which a solid can change to a liquid

b)

The temperature at which a solid can change to a gas

c)

The temperature at which a gas can change to a liquid

d)

The temperature at which a liquid can change to a solid

58.

The boiling point is ...

a)

The temperature at which a liquid changes to a gas

b)

The temperature at which a solid changes to a gas

c)

The temperature at which a gas changes to a solid

d)

The temperature at which a liquid changes to a solid

59.

What word describes the relationship between the mass of a material and its volume?

a)

Volume

b)

Weight

c)

Height

d)

Density

60.

Substances that do NOT conduct heat and electricity well are called ______________.

a)

Metals

b)

Silver

c)

Conductors

d)

Insulators

61.

You are given the following information: mass = 48 g; volume = 24 cm^3.What is the density of this substance?

a)

2 g/cm³

b)

72 g/cm³

c)

.5 g/cm³

d)

1,152 g/cm³

62.

Which liquid is the least dense?

a)

oil

b)

water

c)

syrup

d)

plastic bottle

63.

Why does ice float?

a)

Liquid water is less dense than solid water.

b)

Solid water is less dense than liquid water.

c)

Gaseous water is less dense than solid water.

d)

Liquid water is less dense than gaseous water.

64.

What is the formula for density?

a)

density = mass x volume

b)

density = mass / volume

c)

density = mass + volume

d)

density = mass - volume

65.

Jack has a rock. The rock has a mass of 14g and a volume of 2cm³. What is the density of the rock?

a)

7 mL

b)

7 g/cm³

c)

28 g/cm³

d)

1/7 g/cm³

66.

Frank has an eraser. It has a mass of 4g, and a volume of 2cm³. What is its density?

a)

8 g/cm³

b)

2 g/cm³

c)

1/2 g/cm³

d)

24 g/cm³

67.

In an endothermic reaction, heat is ...

a)

taken in

b)

given out

68.

In an exothermic reaction, heat is ...

a)

taken in

b)

given out

69.

Which of these processes is always exothermic?

a)

evaporation

b)

burning

c)

insulation

d)

melting

70.

If a chemical reaction is EXOTHERMIC, the temperature would....

a)

Stay the same

b)

Increase

c)

Decrease

71.

What type of reaction occurs in a hand warmer?

a)

exothermic

b)

endothermic

72.

5. When ammonium chloride dissolves in water the temperature falls. The type of energy change is described as?

a)

A. exothermic

b)

B. activated

c)

C. decomposition

d)

D. endothermic

73.

$O_2\left(g\right)\ +\ 2\ H_2\ \left(g\right)\ \rightarrow\ 2\ H_2O\ \left(g\right)\ +\ Energy$

a)

endothermic

b)

exothermic

74.

$6\ CO_2+\ 6\ H_2O\ +\ Energy\ \rightarrow\ C_6H_{12}O_6\ +\ 6\ O_2$

a)

endothermic reaction

b)

exothermic reaction

75.

This is when heat is absorbed, it is an

a)

Exothermic reaction

b)

endothermic reaction

c)

both

d)

none

76.

When heat is released it is an

a)

exothermic reaction

b)

endothermic reaction

c)

both

d)

none

77.

A melting ice cube is an example of

a)

exothermic

b)

endothermic

c)

none

d)

both

78.

Heat transfers from an area of ____temperature to an area of ___ temperature.

a)

high to low

b)

low to high

c)

high to high

d)

It can travel high to low and low to high.

79.

How does heat energy from the Sun reach Earth?

a)

radiation

b)

solar wind

c)

conduction

d)

convection

80.

Sarah is stirring her hot chocolate with a metal spoon, and she notices that the spoon is getting hot. This is most likely caused by which type of heat?

a)

conduction

b)

convection

c)

radiation

d)

insulation

81.

Molecules in cold things move more _________

than in hot things.

a)

quickly

b)

slowly

c)

speedy

d)

Rapidly

82.

Which direction will the heat flow while this person holds a hot cup of tea?

a)

from the cup to her hand

b)

from her hand to the cup

c)

no heat is transferred

d)

Heat does not move

83.

At higher temperatures

a)

particles in an object have less energy

b)

particles in an object move faster

c)

a gas contracts

84.

A gas

a)

has a definite shape but no definite volume

b)

has a definite volume but no definite shape

c)

has fast-moving particles

85.

Freezing

a)

Solid to gas

b)

Liquid to solid

c)

Gas to solid

86.

Boiling

a)

liquid to gas

b)

gas to solid

c)

gas to liquid

87.

Solid to Gas

a)

Deposition

b)

Sublimation

c)

Evaporation

88.

What is condensation?

a)

gas to solid

b)

gas to liquid

c)

liquid to solid

89.

The slower the particles in a substance move,

a)

the colder it is.

b)

the warmer it is.

c)

the more energy it has.

90.

The temperature of a substance increases as___.

a)

the substance expands

b)

the average kinetic energy of its particles increases

c)

the substance's volume increases

d)

the substance's mass increases

91.

Definite shape and definite volume

a)

Solid

b)

Liquid

c)

Gas

92.

Has a definite volume but not a definite shape

a)

Solid

b)

Liquid

c)

Gas

93.

Liquid to Gas

a)

Condensation

b)

Evaporation

c)

Sublimation

94.

The state of matter that has no definite size or shape is

a)

Solid

b)

Liquid

c)

Gas

95.

The law of conservation of mass says substances can neither be _______ nor ___________.

a)

Built; torn down

b)

Blended together; separated

c)

Created; destroyed

d)

Condensed; extracted

96.

___C₃H₈ +___O₂ --> ___CO₂ + ___H₂O

a)

1,5,3,4

b)

2,10,6,8

c)

already balanced

d)

1,5,5,4

97.

__Al + __Fe₃N₂ -->__AlN + __Fe

a)

already balanced

b)

4,2,4,6

c)

2,1,2,3

d)

1,2,1,3

98.

__Na + __Cl₂ --> __NaCl

a)

1,1,2

b)

2,1,2

c)

2,1,1

d)

already balanced

99.

__H₂O₂ --> __H₂O + __O₂

a)

already balanced

b)

2,1,1

c)

2,2,1

d)

2,1,2

100.

__C₆H₁₂O₆ + __O₂ --> __H₂O + __CO₂

a)

1,6,6,6

b)

already balanced

c)

1,6,1,6

d)

2,12,12,12

101.

__H₂O + __CO₂ --> __C₇H₈ + __O₂

a)

4,7,1,9

b)

4,7,1,7

c)

2,3,1,3

d)

already balanced

102.

__NaClO₃--> __NaCl + __O₂

a)

2,2,2

b)

2,2,3

c)

3,2,2

d)

1,2,3

103.

__(NH₄)₃PO₄ + __Pb(NO₃)₄ --> __Pb₃(PO₄)₄ + __NH₄NO₃

a)

2,1,1,6

b)

1,2,2,3

c)

4,3,1,12

d)

4,2,1,12

104.

__BF₃ + __Li₂SO₃ --> __B₂(SO₃)₃ + __LiF

a)

2,3,1,3

b)

2,3,1,6

c)

4,4,2,12

d)

3,3,1,9

105.

10. __C₇H₁₇ + __O₂--> __CO₂ + __H₂O

a)

1,2,7,9

b)

2,14,7,17

c)

3,28,14,17

d)

4,45,28,34

Reset

Similar Resources on Wayground

100 questions

Chemistry Unit Review

Worksheet

•

6th - 8th Grade

100 questions

PH 2 IPA 7 SEM 1 2022/2023

Worksheet

•

7th Grade

100 questions

Atmosphere, Hydrosphere, Weather, Geosphere

Worksheet

•

6th - 9th Grade

100 questions

Wave Properties and Energy Transfer

Worksheet

•

7th Grade

100 questions

Unit 8 7th Grade

Worksheet

•

7th Grade

100 questions

Weather/Atmosphere

Worksheet

•

7th Grade

103 questions

8th Grade Science -MCAS Review

Worksheet

•

6th - 8th Grade

110 questions

🤗HW14: 9.28

Worksheet

•

7th Grade