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2
3
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5
100
what something is made of
material
100
tool with few or no moving parts
simple machine
100
something you want to do
goal
100
to make something for the first time
invent
100
the use of science to solve problems
technology
200
the answer to a problem
solution
200
Is a spoon technology? How do you know?
Yes. People used science to make this tool that helps people.
200
You follow directions to make a paper airplane. Did you invent the paper airplane? Explain why or why not.
No. Paper airplanes have been made before. I was not the first person to make a paper airplane.
200
Which material might be best for making a raincoat: cotton, corduroy, fleece, or rubber? Why?
The rubber would be best because it is waterproof.
200
Why do engineers record their work?
Possible answer: It helps them remember what they have done. They can also share information with other scientists or engineers.
300
Why must engineers sometimes plan and draw more than once?
Their first design might not solve the problem
300
What is an inclined plane? How does it help you do work?
An inclined plane is a kind of simple machine. It makes it easier to move heavy objects from place to place.
300
Why is a screw a simple machine?
It has no moving parts
300
What is a pulley?
Pulleys move an object up, down, or sideways.
300
Which body parts can be used as levers?
My arms and hands can be used as levers
400
Think about one kind of technology you use. Write how it help you.
Possible answer: Glasses help me see
400
What tool are your front teeth most like?
a wedge
400
For what purpose does a sea turtle use its flippers like a shovel?
Possible answer: It uses its flippers to dig up sand so that it can build a nest.
400
What is a wedge?
A wedge is a tool. A wedge is used to push things apart. A knife is a wedge. You can use your teeth as a wedge. You can use your teeth to cut and chew food.
400
What is a lever?
A lever is a tool. A lever can be used to move things. A shovel is a lever. It can move dirt. You can use your arms as levers. You can use your arms to pick things up.
500
What steps do scientists follow when they design new technology?
First, they find the problem. Second, they plan the solution and draw it. Next, they choose the material they want to use to make the solution. Then they make the solution and test it. Finally, they share the results with others.
500
Look at a wooden pencil. Why is wood a good choice for the material?
Possible answer: Wood is strong and will not break easily. It is also smooth and easy to hold. It can be cut away to show more "lead" as it gets dull.
500
Number the steps of the design process in order.
1. Find a problem 2. Plan and draw 3. Choose materials 4. Make and test 5. Record and share
500
How did people find their way in the dark before the light bulb was invented?
Possible answers: People used candles, gas lamps, and fire
500
A mover needs to move a couch from the first floor to the second floor. It does not fit through the stairwell. Which simple machine might help the mover? Why?
Possible answer: A pulley system might help the mover. It would make it easier for the mover to lift the couch from the first floor to the second floor.
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