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WorksheetsScience Review
Total questions: 15
Worksheet time: 1hrs 15mins
Name
Class
Date
1.
Which of these is the best conductor of electricity?
a)
Glass rod
b)
Cotton string
c)
Plastic tubing
d)
Copper penny
2.
Which of these best demonstrates the reflection of light?
a)
Looking through the glass of a large window
b)
Looking at an image formed on a silver spoon
c)
Looking at a lightbulb that is glowing
d)
Looking at a star on a clear night
3.
Which of these cycles is a direct result of Earth’s rotation?
a)
Day and night
b)
Moon phases
c)
Rainfall and evaporation
d)
Seasons
4.
Water flows through turbines in dams like the one shown below. The flowing water makes the turbines spin. What type of energy is used to make the turbines spin in this type of dam?
a)
Light energy
b)
Thermal energy
c)
Sound energy
d)
Mechanical energy
5.
The graph below shows changes in the length of the shadow of a tree during part of a day. If this day continues to be sunny, what will most likely happen to the length of the shadow from 2P.M. to 4P.M.?
a)
The length of the shadow will stay the same.
b)
The length of the shadow will decrease and then increase.
c)
The length of the shadow will increase.
d)
The length of the shadow will decrease.
6.
A teacher mixes a white powder into a beaker of water. The powder cannot be seen in the water. The teacher then heats the mixture until the water evaporates and the powder can be seen again. Which property of the powder is the teacher demonstrating?
a)
Solubility
b)
Density
c)
Conductivity
d)
Mass
7.
Fox squirrels live in the trees of city parks throughout Texas. Each spring they build nests of twigs and leaves in the tops of the trees. Fox squirrels are often found near park benches, waiting to be fed by visitors. For fox squirrels, which of these is a learned behavior?
a)
Building a nest each spring
b)
Taking food from people
c)
Having a long, bushy tail
d)
Having sharp claws
8.
The diagram shows a series circuit with three lit bulbs. How many of the bulbs will remain lit if the wire is cut at the point shown by the arrow?
a)
0
b)
1
c)
2
d)
3
9.
Glaciers are masses of ice that move slowly on land. Which of these features was most likely formed by a glacier?
a)
A wide valley
b)
A deep ocean
c)
A lava flow
d)
A mountain range
10.
A mixture of beads was placed in a container, as shown below. The beads are of various sizes, and each one is made of plastic, glass, or steel. The mixture would be easy to separate because all the beads —
a)
are less dense than water
b)
are solids
c)
have the same mass
d)
are attracted to a magnet
11.
A diagram of the stages in the water cycle is shown below. Which of these observations would most likely be seen at Stage N?
a)
Water flowing downhill
b)
Fog forming along a highway
c)
The water level of a lake decreasing
d)
Dark clouds forming in the sky
12.
The stages in the development of an insect are shown below. Which observation best supports the conclusion that this insect undergoes incomplete metamorphosis?
a)
The insect changes color when it becomes an adult.
b)
The first stage of the insect’s development is as an egg.
c)
The insect undergoes more than four stages in its development.
d)
The insect has similar body parts throughout its development.
13.
Which of these best describes climate rather than weather?
a)
Wind speed is changing as a storm moves through an area.
b)
The temperature is decreasing in a slow-moving cold front.
c)
Annual high temperatures in the summer have increased over many decades.
d)
The rainfall during one year was greater than the rainfall during the following year.
14.
Some students put two ice cubes on separate plates. One ice cube had a mass of 80 grams. The other had a mass of 40 grams. Which result would be the same for both ice cubes in this investigation?
a)
The time it took each ice cube to melt completely
b)
The temperature at which each ice cube melted
c)
The amount of liquid produced on each plate
d)
The total volume of each ice cube
15.
Many types of plants grow in a forest ecosystem. How do plants affect the air that forest animals breathe?
a)
Plants use oxygen from the air to make food.
b)
Plants release pollution into the air.
c)
Plants release energy from the sun into the air.
d)
Plants take in carbon dioxide and release oxygen into the air.
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