wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

Y7 Grosstest Fall Review

Total questions: 82

Worksheet time: 2hrs 31mins

Name
Class
Date
1.

What is a positively charged particle?

a)

neutron

b)

electron

c)

proton

d)

atom

2.

What is a negatively charged particle?

a)

neutron

b)

electron

c)

proton

d)

atom

3.

What is a particle with no charge?

a)

neutron

b)

electron

c)

proton

d)

atom

4.

Who discover the electron?

a)

Dalton

b)

Rutherford

c)

Thomson

d)

Bohr

5.

What did Rutherford discover in his experiment?

a)

nucleus

b)

electrons

c)

neutrons

d)

protons

6.

Who proposed a model with electrons moving in specific layers?

a)

Dalton

b)

Rutherford

c)

Bohr

d)

Thomson

7.
A tiny but very dense, positively charged portion of the atom that holds most of the atomic mass
a)
Electron Shells
b)
Orbitals
c)
Electron Cloud
d)
Nucleus
8.

Where are electrons located in an atom?

a)
Nucleus
b)
Electron Cloud
c)
Within a Proton
d)
Within a Neutron
9.

Which scientist is known for his, "Plum Pudding" model of an atom?

a)

JJ Thomson

b)

John Dalton

c)

Ernest Rutherford

d)

Erwin Schrodinger

10.
Atoms of the same element but with different numbers of neutrons.
a)
Ion
b)
Isotope
c)
Mass Number
d)
electron
11.

Carbon has how many protons?

a)

12

b)

6

c)

7

d)

4

12.

What is Oxygen's atomic number?

a)

8

b)

16

c)

15

d)

6

13.

Iodine has ______ electrons

a)

127

b)

53

c)

74

d)

7

14.

How many protons are in Gold

a)

79

b)

197

c)

118

d)

276

15.

What is the atomic number of this atom?

a)

1

b)

3

c)

4

d)

7

16.

An atom has 10 protons, 15 neutrons and 10 electrons what is its mass number.

a)

20

b)

10

c)

35

d)

25

17.

How many electrons does this atom have?

a)

2

b)

4

c)

6

d)

10

18.
What is the atomic number?
a)
the number of protons
b)
the number of protons and neutrons
c)
the number of neutrons
d)
the number of protons and electrons
19.

Who created the periodic table?

a)

John Dalton

b)

Marie Curie

c)

Dmitri Mendeleev

20.

The periodic table is arranged in order of...

a)

increasing atomic number

b)

increasing atomic mass

c)

decreasing atomic mass

d)

decreasing atomic number

21.

Groups on the periodic table are arranged...

a)

vertically

b)

horizontally

c)

diagonally

22.

Periods on the periodic table are arranged...

a)

vertically

b)

horizontally

c)

diagonally

23.

At room temperature, most elements are classified as...

a)

non-metal

b)

metal

c)

mettalloids

d)

halogens

24.

Which of the following is a property of non-metals?

a)

malleable (easily reshaped w/o breaking)

b)

brittle (easily broken)

c)

ductile (capable of being drown out into a wire or thread)

25.

What family is on the far right of the periodic table?

a)

alkali metals

b)

transition metals

c)

actinoids

d)

noble gases

26.

What family is on the far left of the periodic table?

a)

noble gases

b)

alkali metals

c)

transition metals

d)

actinoids

27.

Which pair of properties describes the elements in Group 1?

a)

They are chemically stable

b)

They have 8 valence electrons

c)

They are the most reactive metals

d)

They are the most reactive non metals

28.

Which pair of properties describes the elements in Group 1?

a)

They are chemically stable

b)

They have 8 valence electrons

c)

They are the most reactive metals

d)

They are the most reactive non metals

29.

What property does element X have based on its location in the periodic table?

a)

Highly reactive gas

b)

Manmade radioactive substance

c)

Nonreactive nonmetal

d)

Metallic solid

30.

Which pair of properties describes the elements in Group 1?

a)

They are chemically stable

b)

They have 8 valence electrons

c)

They are the most reactive metals

d)

They are the most reactive non metals

31.
a)
Periods
b)
Groups
32.
a)
Periods
b)
Groups
33.
a)
energy levels
b)
valence electrons
c)
protons
d)
neutrons
34.
a)
Group 1
b)
Group 17
c)
Group 2
d)
Group 18
35.
a)
Group 1
b)
Group 17
c)
Group 18
d)
Group 2
36.
a)
Metals
b)
Nonmetals
c)
Metalloids
37.
a)
Metals
b)
Nonmetals
c)
Metalloids
38.
a)
Metals
b)
Nonmetals
c)
Metalloids
39.
An element's identity is determined by the number of
a)
electrons.
b)
protons.
c)
neutrons.
d)
valence.
40.
What's a valence electron?
a)
electrons in the second energy level
b)
electrons in the outermost energy level
c)
the atomic number
d)
electrons in the first level
41.
These are found on the Periodic Table.
a)
Compounds
b)
Elements
c)
Mixtures
42.

Metals are found on the ______________ side of the periodic table.

a)

nonmetals

b)

left

c)

right

d)

metals

43.
a)
energy levels
b)
valence electrons
c)
protons
d)
neutrons
44.
An element's identity is determined by the number of
a)
electrons.
b)
protons.
c)
neutrons.
d)
valence.
45.
What's a valence electron?
a)
electrons in the second energy level
b)
electrons in the outermost energy level
c)
the atomic number
d)
electrons in the first level
46.
Two elements chemically bonded form
a)
element
b)
compound
c)
mixture
d)
solutions
47.

The number of electrons in an atom is equal to the...

a)

Atomic number

b)

Protons

c)

Atomic Mass

d)

Neutrons

48.

The formula used to calculate the number of neutrons is:

a)

Mass Number - Atomic Number

b)

Protons + Electrons

c)

Atomic Number - Mass Number

d)

Protons x2

49.

Elements in the same group have : (2 correct answers)

a)

Similar chemical properties

b)

Similar names

c)

Same number of outer (valence) electrons)

d)

The same number of protons

50.
The following is what type of reaction:
PbCl2 + AgNO3 → Pb(NO3)2 + AgCl
a)

Combination/Synthesis

b)
Decomposition
c)

Single Displacement

d)

Double Displacement

51.
The following is what type of reaction:
NH3 + HCl  → NH4Cl
a)

Combination/Synthesis

b)
Decomposition
c)

Single Displacement

d)

Double Displacement

52.
What type of chemical reaction is this?
Al(OH)3 → Al2O3  + H2O
a)
Decomposition
b)
Combustion
c)

Combination/Synthesis

d)

Single Displacement 

53.
3Ca + 2AlCl3 --> 3CaCl2 + 2Al
a)
Synthesis
b)
Decomposition
c)
Single Displacement
d)
Double Displacement
54.
3KOH + H3PO4 --> K3PO4 + 3H2O
a)

Combination/Synthesis

b)
Decomposition
c)
Single displacement
d)
Double displacement
55.

What reaction has the following general formula:

A + CD --> C + AD

a)

Combination/Synthesis

b)

Decomposition

c)

Single Displacement

d)

Double Displacement

e)

Combustion

56.

What reaction has the following general formula:

AB + CD --> CB + AD

a)

Combination/Synthesis

b)

Decomposition

c)

Single Displacement

d)

Double Displacement

e)

Combustion

57.

What reaction has the following general formula:

A + B --> AB

a)

Combination/Synthesis

b)

Decomposition

c)

Single Displacement

d)

Double Displacement

e)

Combustion

58.
The red numbers in the image below represent ________
a)
subscripts
b)
coefficients
c)
I don't know, and don't want to try
d)
None of the answers are correct
59.
The blue numbers in the image below represent ________
a)
I don't know, and don't want to try
b)
coefficients
c)
subscripts
d)
none of the answers are correct
60.
The substances at the beginning of a chemical equation are called the ____
a)
product
b)
yield
c)
chemical symbol
d)
reactants
61.

What is the right part of a chemical equation called...

H2 + O2 --> H2O

a)

Reactants

b)

Products

c)

Yields

d)

Chemical Equation

62.
When balancing equations a ____ can be placed to the left of a formula of a substance to make the equations balanced
a)
charge
b)
subscript
c)
random number
d)
coefficient
63.
Number of C's in 2Na₂CO₃
a)
1
b)
2
c)
3
d)
5
64.
How many Elements are in the compound C2H8O ?
a)
2
b)
1
c)
3
d)
0
65.
How many total atoms are in the compound C2H8O ?
a)
11
b)
2
c)
8
d)
1
66.
How many Magnesium are in 10MgCl2?
a)
10
b)
5
c)
20
67.
Balance this equation
_Zn+_HCl-->_ZnCl2 +_H2
a)
1,1,2,1
b)
1,1,1,2
c)
1,2,1,1
d)
2,1,1,1
68.
Balance this equation.
_Mg + _Cl2 --> _MgCl2
a)
1, 2,1
b)
already balanced
c)
2,1,1
d)
1,1,2
69.
What does the Law of Conservation of Mass state?
a)
Matter cannot be gained or lost in a chemical reaction.
b)
Matter can only be lost in a chemical reaction.
c)
Matter can only be gained in a chemical reaction.
d)
Matter can be gained and lost in a chemical reaction. 
70.
Balance this equation-
__P4 + __O2 --> __P2O3
a)
it is already balanced
b)
2, 1, 3
c)
1, 2, 3
d)
1, 3, 2
71.
Balance this equation.
_Mg + _Cl2 --> _MgCl2
a)
1, 2,1
b)
already balanced
c)
2,1,1
d)
1,1,2
72.
Balance this equation.
_CH4 + _O2 --> _CO2 + _H2O
a)
1,2,1,1
b)
2,1,2,1
c)
1,2,1,2
d)
0,2,0,2
73.

In an endothermic reaction, heat is ...

a)

taken in

b)

given out

74.
In an exothermic reaction, heat is ...
a)
taken in
b)
given out
75.
What type of reaction is shown in the photo?
a)
Exothermic
b)
Isothermic
c)
Endothermic
d)
None of the  above
76.

What type of reaction occurs in a hand warmer?

a)

exothermic

b)

endothermic

77.

O2(g) + 2 H2 (g) → 2 H2O (g) + EnergyO_2\left(g\right)\ +\ 2\ H_2\ \left(g\right)\ \rightarrow\ 2\ H_2O\ \left(g\right)\ +\ Energy  

a)

endothermic

b)

exothermic

78.

6 CO2+ 6 H2O + Energy → C6H12O6 + 6 O26\ CO_2+\ 6\ H_2O\ +\ Energy\ \rightarrow\ C_6H_{12}O_6\ +\ 6\ O_2

a)

endothermic reaction

b)

exothermic reaction

79.

Which example provides evidence of a chemical change?

a)

Wood releases ash and smoke when burned.

b)

Rock particles separate when soil is being sifted.

c)

Boiling water bubbles when being heated.

d)

Sugar is not visible when dissolved in water.

80.

When vinegar and baking soda are combined, bubbles and foam are produced.

What evidence demonstrates that a chemical change has occurred?

a)

A color change occurs.

b)

A gas is formed.

c)

A solid is dissolved.

d)

A precipitate is formed.

81.

Which processes from the table can be used as evidence to identify the formation of a new substance?

a)

Processes A, B, C, and D

b)

Processes B, C, E, and F

c)

Processes B, C, D, and F

d)

Processes C, D, E, and F

82.

Two liquids are mixed together.  Which of the following does NOT identify the formation of a new substance?

a)

A gas is produced.

b)

One liquid dissolves into the other.

c)

The temperature changes.

d)

A solid is formed.

Similar Resources on Wayground

แบบทดสอบวิชาวิทยาศาสตร์ อังกฤษ ไทย สังคม

82 questions

แบบทดสอบวิชาวิทยาศาสตร์ อังกฤษ ไทย สังคม

quiz

Worksheet

•

7th Grade

Amplify Chemical Reactions Unit Test Prep

85 questions

Amplify Chemical Reactions Unit Test Prep

quiz

Worksheet

•

7th Grade

Autumn Term Science Revision Practice 2022

78 questions

Autumn Term Science Revision Practice 2022

quiz

Worksheet

•

6th - 7th Grade

Chemistry Practice Quiz Feb 2022

84 questions

Chemistry Practice Quiz Feb 2022

quiz

Worksheet

•

6th - 8th Grade

Chemistry Part 1 Review

82 questions

Chemistry Part 1 Review

quiz

Worksheet

•

KG - University

Grade-7

77 questions

Grade-7

quiz

Worksheet

•

7th Grade

Practice Midterm: Honors Physical Science

80 questions

Practice Midterm: Honors Physical Science

quiz

Worksheet

•

7th - 12th Grade

Q1 &Q2 Review 12/15

79 questions

Q1 &Q2 Review 12/15

quiz

Worksheet

•

7th Grade