TERRIFIC TELEPHONES

INTRODUCTION

Let's use what we've learned to make a telephone.

WHAT YOU NEED

• 2 paper cups
• 2 paper clips
• 1 long string

WHAT YOU DO

1. Put one end of the string through each cup and tie one paper clip to the end of the string in the each of the cups.

2. You hold one cup by your mouth and your partner holds the other by his or her ear. Move apart until the string is tight.

3. Try talking to your partner by speaking into the telephone. Is it easier or harder for your partner to hear you with the telephone?

__________________________________________________________________

__________________________________________________________________

WHEN YOU'RE DONE

Why isn't your family telephone made out of string and cups?

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________

__________________________________________________________________