🔬 1st Grade Science · Unit 4
Talking Across Distances
10 short narrated lessons in 2 chapters, each with pictures, a quiz with a hint and a second try, and an explanation for every answer.
Standards: 1-PS4-4 K-2-ETS1-1 K-2-ETS1-2 K-2-ETS1-3
1st Grade Science · 6 units



What your child will learn
Signals with light and sound
- What Is Communication?Explain that communication means sharing a message with someone else.
- Sound SignalsDescribe how bells, whistles and drums send messages over a distance.
- Light SignalsDescribe how flashlights, traffic lights and lighthouses send messages with light.
- Secret CodesUse a simple code of long and short flashes or beeps to send a message.
- Signals Review ReviewReview ways people use light and sound to send messages far away.
Design a signal device
- What Is the Problem?Identify a communication problem, like calling a friend from across the playground.
- Sketch a SignalDraw a plan for a device that uses light or sound to send a message.
- Build and TestBuild a signal device and test whether a partner can understand the message.
- Compare DesignsCompare two signal devices to find which one sends a message more clearly.
- Design a Signal Device Review ReviewReview the steps of designing, building and testing a light or sound signal.
Try a question from this unit
From the lesson “What Is Communication?”
Which child is sending a message to a friend far away?
Show the answer
[object Object]. Waving your arms is a message your friend can see from far away.
Hint kids see after a wrong try: “Think about what your friend could see from far away.”
Key words
- communicate
- message
- signal
- whistle
- lighthouse
- flash
- code
- problem
- goal
- sketch
- device
- build
- test
- compare
- data
Try these lessons in Kids Shelf
Narrated lessons, pictures and quizzes for every grade from K to 8. Works offline.