Wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

(7th Grade) Unit 1 Review: Chemistry of Life

Total questions: 55

Worksheet time: 31mins

Name
Class
Date
1.

State of matter with a definite shape and definite volume.

a)

solid

b)

liquid

c)

gas

2.

State of matter with a definite volume, but no definite shape.

a)

solid

b)

liquid

c)

gas

3.

State of matter with no definite shape and no definite volume.

a)

solid

b)

liquid

c)

gas

4.

Particles are closely spaced.

a)

solid

b)

liquid

c)

gas

5.

Particles are not so closely spaced and slide past each other.

a)

solid

b)

liquid

c)

gas

6.

Basic state of matter with the least amount of energy.

a)

solid

b)

liquid

c)

gas

7.

Basic state of matter with an intermediate (medium) amount of energy.

a)

solid

b)

liquid

c)

gas

8.

Basic state of matter with the greatest amount of energy.

a)

solid

b)

liquid

c)

gas

9.

What happens to particles when their temperature increases?

a)

The particles move slower

b)

The particles move faster

c)

The particles lose mass

d)

The particles gain mass

10.

When ice sits out on a counter and melts, it is because the ice has...

a)

gained mass

b)

gained energy

c)

lost mass

d)

lost energy

11.

When water sits in the freezer and freezes into ice, it is because the water has...

a)

gained mass

b)

gained energy

c)

lost mass

d)

lost energy

12.
In which state of matter do particles spread apart and fill all the space available to them? 
a)
crystal
b)
liquid
c)
gas
d)
solid
13.
The change from a  liquid to solid, or the reverse of melting, is called
a)
condensation
b)
boiling
c)
sublimation
d)
freezing
14.
During the process of sublimation
a)
a solid turns directly into a gas
b)
a solid turns into a liquid
c)
a gas turns directly into a solid 
d)
 a liquid turns into a gas
15.

Which of these three states represents a liquid?

a)

A

b)

B

c)

C

16.

Matter is anything that takes up space and has mass.

a)

True

b)

False

17.

How many states of matter are there?

a)

1

b)

2

c)

3

d)

4

18.

Which of these are physical properties of baking soda? Check all that apply.

a)

solid

b)

reacts with vinegar

c)

reacts with lime juice

d)

powder-like

e)

white

19.

Which of these are chemical properties of baking soda? Check all that apply.

a)

solid

b)

reacts with vinegar

c)

reacts with lime juice

d)

does not react with water

e)

white

20.

Which of these is a physical property of this apple?

a)

Color

b)

Volume

c)

Mass

d)

All of them

21.

Physical properties can be observed without changing the substance.

a)

True

b)

False

22.

Chemical properties can only be observed if the substance is tested and goes through a change.

a)

True

b)

False

23.

Elements are

a)

pure substances

b)

a combination of different substances

c)

a combination of two or more different atoms

d)

same as molecules

24.

Atoms are...

a)

made of protons, neutrons, and electrons

b)

smallest particles of matter

c)

able to bond together or break up

d)

all of the above

25.
The following element key shows how many protons?
a)
16
b)
15.999
c)
Oxygen
d)
8
26.

A proton a __________ particle.

a)

negative

b)

positive

c)

neutral

27.
Elements can have the same number of protons?
a)
True
b)
False
28.
Protons are equal to:
a)
Atomic Mass
b)
Number of neutrons
c)
Atomic Number
d)
All of the subatomic particles
29.
Where are protons located in the atom?
a)
orbitals
b)
nucleus
c)
rings
d)
positive
30.

Which number shows the atomic number?

a)

2

b)

4.0026

c)

4

d)

HE

31.
Where is the neutron located?
a)
In the loose nucleus with the electron
b)
In the dense nucleus with the protons
c)
In the electron cloud
d)
The nucleus floats on orbitals
32.

What is the formula to solve for the neutron?

a)

Mass + Atomic Number= Neutrons

b)

Mass x Atomic Number = Neutrons

c)

Mass - Atomic Number = Neutrons

d)

Mass + Number of Protons = Neutron

33.
In order for me to find the number of neutrons, I must round the atomic mass and then do what?
a)
atomic number-atomic mass
b)
atomic number x atomic mass
c)
atomic mass + atomic number
d)
atomic mass - atomic number
34.

How many neutrons in Lithium?

a)

3

b)

4

c)

7

35.

Electrons are...

Check all that apply.

a)

positive

b)

negative

c)

neutral

d)

found outside the nucleus

e)

found inside the nucleus

36.

How many protons does potassium have?

a)

39.098

b)

39

c)

20

d)

19

37.

How many neutrons does potassium have?

a)

19

b)

39.098

c)

58

d)

20

38.

How many electrons does potassium have?

a)

19

b)

39.098

c)

20

d)

58

39.

If an atom has 93 protons, it will have

a)

93 electrons

b)

93 neutrons

c)

Not enough information to tell

d)

More electrons than protons

40.

NaO is

a)

An element

b)

A molecule

c)

An atom

d)

A compound

e)

Both a compound and a molecule

41.

O

a)

Is an element

b)

Is a molecule

c)

Is a compound

d)

Is both a molecule and a compound

42.

How many atoms of each element are there in the chemical formula CO2 ?

a)

0 Carbon, 2 Oxygen

b)

1 Carbon, 2 Oxygen

c)

2 Carbon, 1 Oxygen

d)

2 Carbon, 2 Oxygen

43.

H2SO4 is a...

a)

Molecule

b)

Compound

c)

Both

44.

N2 is a

a)

molecule

b)

compound

c)

both a compound and a molecule

d)

Element

45.

O3 is a

a)

molecule

b)

compound

c)

both a molecule and a compound

d)

element

46.

Water is

a)

biotic

b)

abiotic

c)

neither biotic or abiotic

d)

both biotic and abiotic

47.

A dead fish along the shore is

a)

biotic

b)

abiotic

c)

both biotic and abiotic

d)

neither biotic or abiotic

48.

Heat transfer through convection is when

a)

heat is transferred when two objects touch

b)

heat is transferred through the movement of particles

c)

heat is transferred through electromagnetic waves

d)

none of the above

49.

Heat transfer through radiation is when

a)

heat is transferred when two objects touch

b)

heat is transferred through the movement of particles

c)

heat is transferred through electromagnetic waves

d)

none of the above

50.

Heat transfer through conduction is when

a)

heat is transferred when two objects touch

b)

heat is transferred through the movement of particles

c)

heat is transferred through electromagnetic waves

d)

none of the above

51.

How many protons for Boron?

a)

5

b)

10.81

c)

11

d)

6

e)

16

52.

How many electrons for Boron?

a)

5

b)

10.81

c)

11

d)

6

e)

16

53.

How many neutrons for Boron?

a)

5

b)

10.81

c)

11

d)

6

e)

16

54.

Which period is Sodium in?

a)

1

b)

2

c)

3

d)

11

55.

Which group is Sodium in?

a)

1

b)

2

c)

3

d)

11

Similar Resources on Wayground

GLOBAL WARMING & GREEN HOUSE EFFECT

60 questions

GLOBAL WARMING & GREEN HOUSE EFFECT

quiz

Worksheet

•

7th Grade

Earthquakes and Faulting Review

50 questions

Earthquakes and Faulting Review

quiz

Worksheet

•

6th - 8th Grade

36. Space, celestial objects and the origin of the universe

58 questions

36. Space, celestial objects and the origin of the universe

quiz

Worksheet

•

7th - 10th Grade

CLASS 10 SCIENCE QUIZ(FORCE) BY DKK

51 questions

CLASS 10 SCIENCE QUIZ(FORCE) BY DKK

quiz

Worksheet

•

7th - 10th Grade

Lost at Sea

50 questions

Lost at Sea

quiz

Worksheet

•

7th - 9th Grade

Respiratory and Circulatory System

54 questions

Respiratory and Circulatory System

quiz

Worksheet

•

7th - 8th Grade

Science Final Exam Review

60 questions

Science Final Exam Review

quiz

Worksheet

•

7th Grade

Review #3 - Semester 2 Final: Energy and Electricity

56 questions

Review #3 - Semester 2 Final: Energy and Electricity

quiz

Worksheet

•

7th - 9th Grade