Week 10 · Springs and Click Pens
Monday
Meet the spring
// A spring pushes back
⏱ about 15 min
Monday: Meet the Spring
Rocket clicks a pen. Click! Click! Click!
"Something inside pushes the tip back up," he says.
Raven holds her own pen. "What do you notice when you click?"
Nova glows over the pen. "Would you like a hint? Think of a coil."
What is a spring?
A spring is a part that stores a push or a pull.
Squeeze a spring, and it gets shorter.
Let go, and it jumps back to its shape.
Stretch a spring, and it gets longer.
Let go, and it pulls back to its shape.
Springs in a home
Many things work because a spring hides inside.
- A click pen has a spring in its barrel.
- A stapler has a spring.
- A flashlight has a spring inside.
- A clothespin with a metal part has a spring.
- A bed can have many springs inside.
SPRING CHECK
- Read the question.
- Tap your answer.
What does a spring do when you squeeze it and let go?
Which one has a spring inside?
What did Nova hint about?
Spring shapes
Most springs look like a coil or a spiral.
Some springs are zig-zag shaped.
Some are shaped like a cone.
Springs are usually made of metal, like steel.
Think about a coil that jumps back.
| Sentence | True or false? |
|---|---|
| A spring goes back to its shape after a squeeze. | ? |
| A click pen has a spring inside. | ? |
| All springs are shaped like a square. | ? |
| A stapler has a spring. | ? |
WHY THIS EXERCISESprings store a push or pull and go back to their shape.
Try it
Walk around your home with a grown-up.
Find three things that might have a spring.
Press each one gently. Does it push back?
Find three things that might have a spring.
Press each one gently. Does it push back?
Safety first
Look and press gently. Do not take anything apart yet.
Only touch things your grown-up says are okay.
Nothing goes in your mouth.
Only touch things your grown-up says are okay.
Nothing goes in your mouth.
WHAT A SPRING DOES
- Tap a card.
- Then tap its spot.
1First
2Next
3Last
Draw a coil spring. Draw it squeezed and draw it stretched.
You met the spring. Great noticing!
Tomorrow, we find out why a spring pushes back.