Rocket is at one end of the yard. Raven is far away.
Rocket whispers, "Come here!" Raven cannot hear him.
Nova asks, "How else could Rocket send it?"
A whisper is too quiet to travel far.
A signal is a light or sound with a message.
A wave of a flashlight is a light signal.
A clap or a drum beat is a sound signal.
Signals help people talk when they are far apart.
| Signal | Light or sound? |
|---|---|
| Flashing a flashlight | Light |
| Ringing a bell | Sound |
| Clapping hands | Sound |
| Sentence | True or false? |
|---|---|
| A signal sends a message. | ? |
| A whisper travels very far. | ? |
| A clap can be a signal. | ? |
| Sentence | True or false? |
|---|---|
| Ringing a bell sends a sound signal. | ? |
| A flashlight flash is a sound signal. | ? |
| A signal is a light or sound with a message. | ? |
| Clapping is a sound signal. | ? |
Here are new sight words.
Look at each word. Say it. Spell it.
Know: K-N-O-W.
Let: L-E-T.
You found two kinds of signals!
Tomorrow you will make a light code.