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WorksheetsScience CFA #2 review
Total questions: 17
Worksheet time: 29mins
Name
Class
Date
1.
Why would you need the mitts to lift the pan off the stove?
a)
The pan is a good conductor but the mitts are not.
b)
The mitts are good conductors but the pan is not.
c)
Both the pan and the mitts are good conductors.
d)
Neither the pan nor the mitts are good conductors.
2.
When you rub your hands back and forth, what forms of energy are you using?
a)
light and sound
b)
light and thermal
c)
sound and thermal
d)
thermal and magnetism
3.
The picture shows a boy roasting a marshmallow over a fire.
Using the picture, which of the following is the best example of light energy?
Using the picture, which of the following is the best example of light energy?
a)
The fire allowing the boy to see the area around him.
b)
The fire cooking the marshmallow.
c)
The boy moving his stick near the fire.
d)
The crackling sounds the fire makes as it burns wood.
4.
A student made a list of activities that involve energy.
-
1. Sharks chasing a school of fish
2. A toaster heating bread
3. A cell phone charging
4. A tree limb falling to the ground
5. Tomato plants absorbing sunlight
6. A canoe floating down a river
-
Which activities on the list are examples of the use of mechanical energy?
-
1. Sharks chasing a school of fish
2. A toaster heating bread
3. A cell phone charging
4. A tree limb falling to the ground
5. Tomato plants absorbing sunlight
6. A canoe floating down a river
-
Which activities on the list are examples of the use of mechanical energy?
a)
Activities 1, 4, and 6
b)
Activities 2, 4, and 5
c)
Activities 1 and 2
d)
Activities 3, 5, and 6
5.
A student puts four objects in a bucket filled with water. The objects are listed below.
-
Plastic ball
Glass marble
Metal paper clip
Wood block
-
Which two objects are most likely less dense than the water?
-
Plastic ball
Glass marble
Metal paper clip
Wood block
-
Which two objects are most likely less dense than the water?
a)
Wood block and metal paper clip
b)
Plastic ball and glass marble
c)
Metal paper clip and glass marble
d)
Wood block and plastic ball
6.
Which of these is not soluble in water?
a)
Oil
b)
Salt
c)
Honey
d)
Sugar
7.
What would most likely happen to the carbon dioxide–oxygen cycle if Earth’s large forests were all cut down?
a)
There would be more carbon dioxide in the atmosphere because fewer plants would be using it to produce their own food.
b)
The remaining plants would stop producing carbon dioxide, and animals would use less oxygen.
c)
The remaining plants would produce more oxygen, and animals would produce less carbon dioxide.
d)
There would be more oxygen in the atmosphere because fewer plants would be using it to produce their own food.
8.
In incomplete metamorphosis which stage doesn't belong?
a)
egg
b)
nymph
c)
pupa
d)
adult
9.
copper wire is a good....
a)
insulator
b)
conductor
10.
A group of particular organisms that belong to the same species that live in the same habitat is known as a:
a)
Population
b)
Ecosystem
c)
Community
d)
Biome
11.
Which of the following is a herbivore?
a)
cricket
b)
frog
c)
hawk
d)
shrew
12.
All of the living AND non-living things in an particular area is called a(n):
a)
ecosystem
b)
house
c)
community
d)
mountain
13.
Which of the following would have a negative impact on an ecosystem
a)
constructing highways
b)
planting trees
c)
recycling paper
14.
How does a bird "change its environment" to meet its NEEDS?
a)
builds a nest
b)
flies around
c)
catches bugs
d)
looks for something to eat
15.
How often does the sun seem to rise in the east and set in the west?
a)
every month
b)
every week
c)
every day
d)
every hour
16.
How long does it take for the Earth to revolve around the sun?
a)
24 hours
b)
one month
c)
365 days
d)
two years
17.
True or False?
This is the correct model of the Earth, Moon, and Sun.
a)
true
b)
false
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