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WorksheetsChemistry Lessons 1, 2, 3
Total questions: 24
Worksheet time: 48mins
Name
Class
Date
1.
What is the law of conservation of mass?
a)
matter can be created
b)
matter can be destroyed
c)
matter cannot be created or destroyed
d)
everyone matters!
2.
What is the line that water creates in a graduated cylinder?
a)
measurement
b)
meniscus
c)
milliliters
d)
mcbiscuits
3.
What is the smallest unit of matter?
a)
particle
b)
atom
c)
molecule
d)
element
4.
What is happening when something freezes?
a)
changes from solid to liquid
b)
changes from gas to liquid
c)
changes from liquid to solid
d)
changes from liquid to gas
5.
What is happening when something evaporates?
a)
changes from solid to liquid
b)
changes from gas to liquid
c)
changes from liquid to solid
d)
changes from liquid to gas
6.
What is the phase change from gas to liquid?
a)
evaporation
b)
freezing
c)
melting
d)
condensation
7.
What is the phase change from solid to liquid?
a)
evaporation
b)
freezing
c)
melting
d)
condensation
8.
What two particles are in the nucleus?
a)
protons and electrons
b)
electrons and neutrons
c)
protons and neutrons
d)
electrons
9.
What particle is in the electron cloud?
a)
proton
b)
neutron
c)
electron
d)
spongebob
10.
What is the number at the bottom of an element box?
a)
atomic number
b)
atomic feeling
c)
atomic mass
d)
atomic importance
11.
What is the number at the top of an element box?
a)
atomic number
b)
atomic feeling
c)
atomic mass
d)
atomic importance
12.
Which two elements can be found in the atmosphere, oceans, crust, and all living things?
a)
hydrogen and oxygen
b)
nitrogen and oxygen
c)
calcium and nitrogen
d)
oxygen and potassium
13.
How do you find the number of protons and electrons?
a)
atomic number
b)
atomic mass
c)
mass minus atomic number
d)
neutrons plus atomic number
14.
How do you find the number of neutrons?
a)
atomic number
b)
atomic mass
c)
mass minus atomic number
d)
neutrons plus atomic number
15.
What is the charge of an electron?
a)
negative -
b)
positive +
c)
neutral o
d)
happy :)
16.
What is the charge of an neutron?
a)
negative -
b)
positive +
c)
neutral o
d)
happy :)
17.
What is the farthest from the center of the atom?
a)
proton
b)
neutron
c)
electron
d)
nucleus
18.
How many protons does Sodium have?
a)
23
b)
11
c)
12
d)
22
19.
How many electrons does Sodium have?
a)
23
b)
11
c)
12
d)
22
20.
How many neutrons does Sodium have?
a)
23
b)
11
c)
12
d)
22
21.
What is the name of the capital letter in an element box?
a)
atomic number
b)
symbol
c)
letter
d)
element name
22.
What is the name of the word in an element box?
a)
atomic number
b)
symbol
c)
letter
d)
element name
23.
Where are protons and neutrons located?
a)
electron cloud
b)
nucleus
c)
electron
d)
cells
24.
Where are electrons located?
a)
electron cloud
b)
nucleus
c)
electron
d)
cells
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