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WorksheetsElements and Compounds
Total questions: 18
Worksheet time: 32mins
Name
Class
Date
1.
What is the chemical symbol for Chlorine?
a)
Cl
b)
Ch
c)
Cr
d)
Ce
2.
Which of the following is a chemical compound?
a)
Co
b)
CO2
c)
Mg
d)
Al
3.
Which element is found in air?
a)
Neon
b)
Carbon
c)
Oxygen
d)
Hydrogen
4.
Milk is a:
a)
Element
b)
Compound
c)
Solid
d)
Mixture
5.
Compounds are two or more elements that are chemically bonded together.
a)
True
b)
False
6.
Which of these is a compound that is part of the processes shown in the picture?
a)
CO2
b)
Sunlight
c)
NaCl
d)
Oxygen
7.
What is the chemical symbol for Potassium?
a)
Po
b)
K
c)
H
d)
P
8.
A compound is represented by a:
a)
Heart
b)
Atomic Mass
c)
Atomic Number
d)
Formula
9.
Which is an element found in your body?
a)
Takis
b)
Aluminum
c)
Calcium
d)
Neon
10.
Which is evidence that a chemical change has happened?
a)
Bending or Breaking
b)
Nothing happens
c)
The change can be reversed
d)
Color Change
11.
Souring of milk is an example of a:
a)
Chemical Change
b)
Physical Change
12.
Which is an example of a physical change?
a)
Rusting of a bike
b)
Ice melting
c)
Cooking orange chicken
d)
Lighting a match
13.
When you bake a cake, it is a chemical change. How do you know this?
a)
The cake tastes good
b)
The cake changed shape
c)
The cake stayed the same
d)
You can't turn the cake back into the ingredients.
14.
Hydrogen Peroxide bubbling on your cut is an example of a:
a)
Physical Change
b)
Chemical Change
15.
A juice box freezing in the freezer is an example of a:
a)
Physical Change
b)
Chemical Change
16.
When the Hydrogen Peroxide and Yeast reacted with each other during the Elephant Toothpaste Lab, this was an example of a:
a)
Chemical Change
b)
Physical Change
17.
Which is NOT an example of a physical change?
a)
Bending a wire
b)
Digestion of food in your stomach
c)
Aluminum foil is cut in half
d)
Popping a balloon
18.
In the Penny Lab, which item was the element and which item was the compound?
a)
Ms. Akid is the element and the ruler of this class
b)
They are both mixtures
c)
Copper is the compound and salt is the element
d)
Copper is the element and salt is the compound
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