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WorksheetsReview for Science Exam 2
Total questions: 35
Worksheet time: 18mins
Which of the following can be easily reused after conducting an investigation with thermal energy ?
Paper cup
Plastic wrap
Glass beaker
Paper towel
Which famous scientist is best know for working with electrical current?
George Washington
James Hutton
Nikola Tesla
Albert Einstein
Which type of energy provides power for household appliances, such as toasters and blenders?
light
sound
electrical
mechanical
Why should a scientist conduct multiple trials ?
Increase the reliability of the results
Science is fun
Laws of science can change
To use different measuring devices
The following was know as one of the greatest inventors who created the light bulb?
George Washington
Nikola Tesla
Thomas Edison
Albert Einstein
Which is most like electricity in a circuit?
Water in pipes
Car on a road
Water in a river
Leaves on a tree
A force that slows or stops motion when objects rub together
Push or pull
Magnetism
Force
Friction
What sticks to steel, iron, nickel, and cobalt?
Push
Magnet
Pull
friction
Why is it harder for the boy in image B to roll down the hill?
motion
friction
work
energy
Any push or pull that causes an object to move, stop or change speed or direction
motion
push
speed
force
Stephanie pours equal amounts of hot water into four cups. Each cup is made of a different material. She puts a thermometer into each cup and collects information using a stopwatch to indicate when 3 minutes have elapsed.
She constructs a chart to organize her data. What data will she add to her chart?
four types of material and different temperatures
similar materials and similar temperatures
similar temperatures for each type of material
four types of material and three different temperatures
Differentiate between conductors and insulators. Which material keeps heat out of a garden shed during summer?
steel
wood
copper
aluminum
Deborah needs a good insulator. Which material should she choose?
iron
steel
foam
copper
Liam places ten cold items in a metal lunchbox and ten cold items in a foam lunchbox to see if they will stay cold. He plans to collect data on his test when he gets to school.
Liam constructs a chart to describe how the items feel after he arrives at school. He then analyzes the data. What does he conclude about the insulating ability of the lunchboxes?
Metal is better than foam.
Foam is better than metal.
Neither kept the items cold.
Foam and metal are equal.
Differentiate between conductors and insulators. Which of the following is a good conductor?
wood chips
plastic bags
newspaper
copper wire
a mixture in which two or more substances are blended together completely is called
solution
distillation
tarnish
Which property of soil could students determine by rubbing a sample between their fingers?
The texture of the soil
The soil’s ability to support life
The color of the soil
The processes that formed the soil
What are the properties of sand.
Select all that apply.
smooth
gritty
tan
doesn't hold water
Deborah needs a good insulator. Which material should she choose?
iron
steel
foam
copper
Differentiate between conductors and insulators. Which of the following is a good conductor?
wood chips
plastic bags
newspaper
copper wire
Liam places ten cold items in a metal lunchbox and ten cold items in a foam lunchbox to see if they will stay cold. He plans to collect data on his test when he gets to school.
Liam constructs a chart to describe how the items feel after he arrives at school. He then analyzes the data. What does he conclude about the insulating ability of the lunchboxes?
Metal is better than foam.
Foam is better than metal.
Neither kept the items cold.
Foam and metal are equal.
Which of the following is best classified as a nonrenewable resource?
Grass
Aluminum
Sunlight
Oxygen
Which of these is a renewable resource?
Diamonds
Coal
Oil
Wind
Resources that can be replaced once they are used are called –
nonrenewable resources
renewable resources
kilowatt resources
unusable resources
Water is an important natural resource found all over the Earth. Where is most of the Earth’s fresh water located?
In glaciers
In lakes
In oceans
In houses
Which type of is represented in the picture?
a pulling force
an electrical force
a pushing force
a magnetic force
Which of the following actions requires a push?
Playing tug-of-war
Picking a carrot
Opening a dresser drawer
Pedaling a bicycle
Students record the amount of time it takes for a rock to hit the ground after being dropped. They repeat this investigation several times. Why is it important to repeat an investigation?
Repeating an investigation increases the reliability of results.
Repeating an investigation allows time for students to test many types of rocks.
Repeating an investigation is not necessary because students should record the first answer they obtain to reduce errors in results.
All of the above
The circuit shown below is a closed circuit. What is the power source for the circuit?
Battery
Light bulb
Switch
Wires
Look at the two circuits below. Why is the first light bulb is lit up?
It is an open circuit
It is a closed circuit
What is a closed circuit?
flow of electricity through a circuit
energy transferred from the flow of electrons
a pathway that prevents the electric current from flowing freely
a pathway that allows the current to flow freely
What is an open circuit?
flow of electricity through a circuit
energy transferred from the flow of electrons
a pathway that prevents the electric current from flowing freely
a pathway that allows the current to flow freely
To DECREASE THE USE OF NATURAL RESOURCES in order to SAVE them -
WASTE
CONSERVATION
RECYCLE
What is electricity?
flow of electricity through a circuit
energy transferred from the flow of electrons
a pathway that prevents the electric current from flowing freely
a pathway that allows the current to flow freely
When electricity travels through a circuit, the flow of electricity is called a current. What do circuits need to create an electrical current?
a source of electricity
a light bulb
two insulated metal wires
an iron nail
