wayground logo

Free Printable Worksheets

NEW

Font size

S
M
L
XL
Worksheets

atoms and molecules

Total questions: 30

Worksheet time: 16mins

Name
Class
Date
1.
A subatomic particle that has a positive electric charge
a)
Proton
b)
Neutron
c)
Electron
d)
Isotope
2.
A subatomic particle that orbits an atom's nucleus, has a negative charge, and has very little mass
a)
Proton
b)
Neutron
c)
Electron
d)
Isotope
3.
The smallest unit of an element that still has the properties of that element.
a)
Atom
b)
Adam
c)
Nucleus
d)
Element
4.
A subatomic particle that has the same mass as a proton but no electric charge
a)
Neutron
b)
Nucleus
c)
Nuclear
d)
Jimmy Neutron
5.
A subatomic particle that has the same mass as a proton but no electric charge
a)
Neutron
b)
Nucleus
c)
Nuclear
d)
Jimmy Neutron
6.
The number of protons in an atom
a)
Atomic Number
b)
Atomic Proton
c)
Atomic Neutron
d)
Atomic Mass
7.
A substance made up of only one kind of atom
a)
Element
b)
Elementary 
c)
Ellie
d)
Elephant
8.
A substance that conducts heat and electricity well and is malleable
a)
Metal
b)
Non-Metal
c)
Element
d)
Malleable
9.
A substance that does not conduct electricity and is not malleable
a)
Non-Metal
b)
Gold
c)
Metal
d)
Aluminum
10.
A table that shows the elements arranged by their atomic numbers
a)
Periodic Table
b)
Dining Room Table
c)
Wooden Table
d)
Occasional Table
11.
A substance made up of atoms of two or more elements that are chemically combined.
a)
Compound
b)
Element
c)
Atom
d)
Nucleus
12.
The temperature at which a substance changes from a solid to a liquid
a)
Melting Point
b)
Boiling Point
c)
1000 C
d)
212F
13.
The temperature at which a substance changes from a liquid to a gas.
a)
Boiling Point
b)
Melting Point
c)
Ballpoint Pen
d)
320 F
14.
A state of matter made up of charged atoms, uncharged atoms, and free electrons
a)
Plasma
b)
Molecule
c)
Atom
d)
Atomic
15.
Particles found within the atom, mainly protons, neutrons, and electrons.
a)
Subatomic Particles
b)
Submarine Particles
c)
Element
d)
Nucleus
16.
Atoms that have the same number of protons but different numbers of neutrons.
a)
Isotopes
b)
Neutron
c)
Proton
d)
Atomic Mass
17.
Easy to shape or bend
a)
Malleable
b)
Non-Metal
c)
Play Doh
d)
Lego
18.
A joining together
a)
Fusion
b)
Fission
c)
Frustration
d)
Furious
19.
A change directly from the solid to the gaseous state without becoming liquid.
a)
Sublimation
b)
Submarine
c)
Subatomic 
d)
Molecule
20.
Russian chemist who developed a periodic table of the chemical elements and predicted the discovery of several new elements (1834-1907)
a)
Dmitri Mendeleev
b)
Bill Nye
c)
Putin
d)
Boris 
21.
Which of these items is made up of one or more molecules?
a)
Gold
b)
Hydrogen
c)
Salt 
d)
Neon 
22.
Elements are made of 
a)
many types of atoms 
b)
the periodic table
c)
one type of atom 
d)
molecules 
23.
All matter is made of 
a)
energy 
b)
atoms 
c)
electrons 
d)
compounds 
24.
What are the 3 particles that make-up the atom?
a)
protons, neutrons, and isotopes
b)
neutrons, isotopes, and electrons
c)
positives, negatives, and electrons
d)
protons, neutrons, and electrons
25.
What is the basic unit of matter and is the smallest particle of an element?
a)
Atoms
b)
Elements
c)
Compounds
d)
Molecules
26.
How many atoms are there in a molecule?
a)
no atoms
b)
1 or more atoms
c)
2 to thousands of atoms
d)
exactly 18 atoms
27.
Two or more atoms chemically bonded together are called a
a)
atom
b)
element
c)
molecule
d)
mixture
28.
Which one of these items is NOT a solid with a repeating pattern?
a)
butter
b)
salt
c)
snowflake
d)
diamond
29.
How many carbon atoms are there in a methane molecule? 
a)
0
b)
1
c)
4
d)
5
30.
How many hydrogen atoms are there in a water molecule? 
a)
0
b)
1
c)
2
d)
3