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WorksheetsSystems & Scale Review
Total questions: 15
Worksheet time: 8mins
Name
Class
Date
1.
Do you think the oxygen in the water you drink today, will still be oxygen in 1000000 years?
a)
Yes
b)
No
2.
Which of these is an atom?
a)
Water
b)
Glucose
c)
CO2
d)
Carbon
3.
Which of these is a molecule only?
a)
Water
b)
Carbon
c)
Nitrogen
d)
Oxygen
4.
If someone gains atoms, do they gain mass?
a)
Yes
b)
No
5.
When a match burns, where does the energy come from?
a)
Air
b)
Striking the match
c)
Wood of the match
d)
Water Vapor
6.
After the flame goes out, does the energy still exist?
a)
Yes
b)
No
7.
When a match burns it weighs less, where does the mass go?
a)
Air
b)
Heat & Light Energy
c)
Soil
d)
Mass was destroyed
8.
Which of the following is organic?
a)
Salt
b)
Soil
c)
Meat
d)
CO2
9.
Which of the following are inorganic?
a)
Meat
b)
Sugar
c)
CO2
d)
Leaves on a tree
10.
Air has mass
a)
True
b)
False
11.
These kinds of bonds are "high energy"
a)
C-C, C-H
b)
C=O, C-H
c)
C-C, C=O
d)
O-H, C=O
12.
Which of the following is not flammable?
a)
CO2
b)
Ethanol
c)
Dried Plants
d)
Gasoline
13.
What kind of energy is stored in the high energy bonds of ethanol?
a)
Heat
b)
Light
c)
Motion
d)
Chemical
14.
What kind of energy is released when ethanol burns?
a)
Heat & Light
b)
Chemical
c)
Light & Motion
d)
Heat & Motion
15.
Which of the following is not a rule about atoms.
a)
Atoms last forever
b)
Atoms are made of energy
c)
Atoms make up the mass of all materials
d)
Atoms are bonded to other atoms in molecules
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