WorksheetsScience CBA #2 Review
Total questions: 25
Worksheet time: 13mins
Name
Class
Date
1.
Students perform an experiment and record their observations. The results are shown in the chart. What are the students most likely observing?
a)
Sinking and floating objects
b)
Objects that are not magnetic
c)
Solids, Liquids and Gases
d)
Objects with the greatest density
2.
Which of these is the best insulator of electricity?
a)
Copper penny
b)
Plastic tubing
c)
Aluminum foil
d)
Metal washer
3.
All matter can be classified by their physical properties. Which substance can be classified as being soluble in water?
a)
Sand
b)
Pepper
c)
Iron fillings
d)
salt
4.
Students sort materials into two groups. Group 1 contains a metal fork, a safety pin, and metal nail clippers. Group 2 contains a penny, a compact disc, and a soda can.
Which physical property of matter did the class use to sort the materials?
Which physical property of matter did the class use to sort the materials?
a)
Sinking and floating
b)
Magnetic and not magnetic
c)
Conductors and insulators
d)
Solids and liquids
5.
Which object would be the least dense in a tub of water?
a)
Golf ball
b)
Glass marble
c)
Rubber ball
d)
Beach ball
6.
At what temperature does ice begin to melt?
a)
100 degrees C
b)
0 degrees C
c)
100 degrees F
d)
32 degrees C
7.
What is most likely observed when the temperature of water increases and reaches 100°C?
a)
The water begins to harden.
b)
The Water begins to form water vapor.
c)
The water level begins to increase.
d)
The water begins to melt.
8.
Which answer choice is only a mixture?
a)
Sand and water
b)
Salt and vinegar
c)
Sugar and water
d)
Lemon juice and water
9.
When combined, which ingredients will maintain their physical property of being a solid?
a)
Sugar cube and water
b)
Wood chips and clay
c)
Syrup and vinegar
d)
Oil and water
10.
One way to separate a solution is through evaporation. What is necessary for evaporation to occur?
a)
Energy
b)
Freezing
c)
Condensation
d)
Melting
11.
All of the following are examples of solutions EXCEPT—
a)
Oxygen
b)
Lemonade
c)
Brewed Coffee
d)
Mixed Nuts
12.
All of the following are related to the formation of fossil fuels EXCEPT?
a)
decomposition of plants and animals
b)
heat and pressure
c)
sedimentary rock
d)
melting and freezing
13.
All of the following are examples of fossil fuel conservation EXCEPT--
a)
Walk or ride a bike instead of driving a car
b)
Buying a hybrid or electric car
c)
Burning coal to produce heat
d)
Using solar panels to create electricity
14.
Scientists agree that almost all of the energy on Earth comes from the sun. Which answer choice best explains how the sun contributed to the formation of fossil fuels?
a)
Fossil fuels come from the remains of plants and animals, which got their energy from the sun.
b)
The sun warms the ocean, which creates fossil fuels.
c)
Fossil fuels come from different types of dirt, which is dried up by the sun.
d)
The sun heats up an active volcano, which then forms fossil fuels.
15.
A valley is a low area of land between hills or mountains. How are valleys formed?
a)
water or glacier erosion
b)
wind erosion
c)
layers of sand and mud are deposited
d)
hurricanes destruct land
16.
Sea caves are created near coastal cliffs and are found all over the world. They are typically formed out of sandstone or limestone. Which natural force is responsible for the formation of a sea cave?
a)
Glaciers erode the rock away at the shoreline.
b)
Pounding waves erode the rock away at the shoreline.
c)
Volcanic eruptions erode the rock away at the shoreline.
d)
Strong winds during a hurricane erode the rock away at the shoreline.
17.
Wind energy is mainly used to generate electricity. All of the following are advantages of using wind energy to generate electricity EXCEPT–
a)
Wind is free and can be captured efficiently.
b)
Using wind to generate electricity helps reserve our fossil fuels.
c)
Using wind energy cuts down on air pollution.
d)
Building wind turbines causes animals to relocate.
18.
Which of the following causes the day and night cycle?
a)
rotation of the moon
b)
rotation of the Earth
c)
rotation of the sun
d)
the seasons
19.
As a homework assignment, students are asked to watch the sunset at home. Which direction will the students need to face to see the sunset at home?
a)
South
b)
North
c)
East
d)
West
20.
Scientists have found dinosaur tracks that were made in fresh mud 100 million years ago. The tracks became fossilized in sandstone. What can these footprints tell scientists about dinosaurs?
a)
How big it was.
b)
How fast it moved
c)
How many legs it walked on.
d)
All of the above.
21.
At times, scientists have found fish fossils in dry areas. What does this tell scientists about the dry area?
a)
The area was once a tundra.
b)
The area was once a desert.
c)
The fish was moved into that area by someone.
d)
The area was once covered with water.
22.
The recorded history for June 10, 2000 in Houston, TX was a high temperature of 88ºF and a low of 73ºF. There were also reports of drizzle and thunder. What does this recorded history represent?
a)
The climate conditions for that day.
b)
The humidity for that day.
c)
The type of thunderstorm for that day.
d)
The weather for that day.
23.
Which of the following best defines a weather change over a climate change?
a)
The snow fall over one year was greater than the snow fall during the following year.
b)
Annual low temperatures have increased over many decades.
c)
The global sea level rose 17 centimeters in the last century.
d)
Glaciers have shrunk over the past seven decades.
24.
Which of the following events in the water cycle is a direct result of condensation?
a)
Water falls to the Earth as freezing rain.
b)
Heat energy changes liquid water to a gas.
c)
Water vapor changes to tiny drops of water and forms clouds.
d)
Water flows over the Earth’s surface.
25.
Students compare the sizes of the Earth, Sun, and Moon and are asked to put them in order from the largest to the smallest. Which answer choice has the Earth, Sun, and Moon in the correct order by their size?
a)
Earth, Sun, Moon
b)
Moon, Earth, Sun
c)
Sun, Earth, Moon
d)
Sun, Moon, Earth
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