Signals and Communication Tools Worksheet
📝 Worksheet hard ⏱️ 20 minutes 10 problems
Signals and Communication Tools Worksheet
Grade 4 Science LearnCrux.com
Name:
Date:
Directions
- Fill in each blank carefully.
- Circle or mark the best answer for each multiple-choice question.
- Match each prompt to the best option before writing your answer.
- Use the larger space to show your thinking on word problems.
1. A pattern used to send information is a __.
2. Match the tool to the kind of signal: flashlight
Match with:
Answer:
3. Match the tool to the kind of signal: speaker
Match with:
Answer:
4. Match the tool to what it can do: code of light flashes
Match with:
Answer:
5. People can use patterns to transfer __.
6. Which is the best example of a repeating signal?
7. Which statement is true?
8. Why might two communication tools use different signals for the same message?
9. A repeating light pattern can be used as a __.
10. Which classroom tool could send information with sound?
📋 Teacher Answer Key
1. signal
2. light signal
3. sound signal
4. send a message across a room
5. information
6. a flashlight blinking in a pattern
7. Signals can use light or sound patterns.
8. different tools use different wave or light patterns
9. signal
10. speaker