📸 Read a Photo
What are these rakes helping the children do?
📖 Read Together
What are Simple Machines?
❓ Essential Question
What are some kinds of simple machines?
🏡
Using Simple Machines in the Yard
🔁 Pulley
is a rope that moves over a wheel.
A ramp is also a simple machine.
You can use it to move things up or down.
⚖️ Lever
is a bar that balances on a point. It moves like a seesaw.
A pulley makes it easier to lift heavy objects.
It also helps move things to high places.
People sometimes use ramps
to move things that are hard to get up stairs.
How can we use pulleys?
The parts of a pulley work together to help us get flags up to the top of a flagpole.
simple machine
is a tool that can make it easier to move things. Simple machines help people do work.
FACT:
Pulleys can be up high or down low.
🧠 Learn
Sometimes things are hard to move. You might need help moving them.
🛝 Ramp
is a slanted surface.
Example:
An oar is a lever that helps you move a boat.
Example:
A ramp helps people in wheelchairs get onto buses.
Lever is another kind of simple machine.
A lever makes it easier to move something.