Building Communication Devices - 1st Grade Science
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What is the meaning of vibration when building a communication device that carries sound?
What is the meaning of vibration when building a communication device that carries sound?
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A back-and-forth movement. Sound waves cause this repeating motion.
A back-and-forth movement. Sound waves cause this repeating motion.
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Which observation shows the cup-and-string telephone is working: string is slack or the listener hears the words?
Which observation shows the cup-and-string telephone is working: string is slack or the listener hears the words?
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The listener hears the words. Slack string can't carry vibrations; success means hearing clearly.
The listener hears the words. Slack string can't carry vibrations; success means hearing clearly.
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Which rule helps make a fair test when comparing two communication device designs?
Which rule helps make a fair test when comparing two communication device designs?
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Change only one thing at a time. Testing one variable at a time shows what actually helps.
Change only one thing at a time. Testing one variable at a time shows what actually helps.
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What should you do if the string keeps slipping through the cup hole during use?
What should you do if the string keeps slipping through the cup hole during use?
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Tie a bigger knot or add tape inside the cup. Both methods prevent the string from pulling through.
Tie a bigger knot or add tape inside the cup. Both methods prevent the string from pulling through.
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Identify the main goal when building a simple communication device with provided materials.
Identify the main goal when building a simple communication device with provided materials.
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To send a message clearly to someone far away. Communication devices help people share information.
To send a message clearly to someone far away. Communication devices help people share information.
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Which material is a better cup choice for a cup-and-string telephone: sturdy paper cup or soft cloth bag?
Which material is a better cup choice for a cup-and-string telephone: sturdy paper cup or soft cloth bag?
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Sturdy paper cup. Soft materials absorb vibrations instead of transmitting them.
Sturdy paper cup. Soft materials absorb vibrations instead of transmitting them.
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Which step comes after testing a device if the message is unclear: ignore it or change one thing and test again?
Which step comes after testing a device if the message is unclear: ignore it or change one thing and test again?
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Change one thing and test again. Engineers test, improve, and test again.
Change one thing and test again. Engineers test, improve, and test again.
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What is the meaning of improve in an engineering design task for communication devices?
What is the meaning of improve in an engineering design task for communication devices?
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Make it work better. Engineers improve by making things work better than before.
Make it work better. Engineers improve by making things work better than before.
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Which tool is safest for a first grader to use to make a hole in a paper cup: sharp knife or teacher-approved hole punch?
Which tool is safest for a first grader to use to make a hole in a paper cup: sharp knife or teacher-approved hole punch?
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Teacher-approved hole punch. Sharp tools are dangerous for young students.
Teacher-approved hole punch. Sharp tools are dangerous for young students.
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Identify the best way to test your communication device after building it.
Identify the best way to test your communication device after building it.
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Send a message and check if it is heard correctly. Testing shows if your device actually works.
Send a message and check if it is heard correctly. Testing shows if your device actually works.
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What causes the string to vibrate in a cup-and-string telephone?
What causes the string to vibrate in a cup-and-string telephone?
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The speaker’s voice making the cup bottom vibrate. Sound waves from voice shake the cup, then travel down string.
The speaker’s voice making the cup bottom vibrate. Sound waves from voice shake the cup, then travel down string.
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What is the meaning of communicate over a distance in science class?
What is the meaning of communicate over a distance in science class?
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Sending a message to someone far away. Distance means not close by or in the same room.
Sending a message to someone far away. Distance means not close by or in the same room.
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What is a simple device for communication over a distance that uses cups and string?
What is a simple device for communication over a distance that uses cups and string?
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A cup-and-string telephone. Sound travels through the tight string connecting two cups.
A cup-and-string telephone. Sound travels through the tight string connecting two cups.
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Which property of the string is most important for a cup-and-string telephone to work well?
Which property of the string is most important for a cup-and-string telephone to work well?
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The string must be tight. Vibrations travel better through tight materials than loose ones.
The string must be tight. Vibrations travel better through tight materials than loose ones.
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Which material choice best carries sound in a cup-and-string telephone: tight string or loose string?
Which material choice best carries sound in a cup-and-string telephone: tight string or loose string?
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Tight string. Loose string can't carry vibrations well.
Tight string. Loose string can't carry vibrations well.
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