Hello, young learners! Welcome back to Primary 1 Basic Science & Technology. In our previous lesson, we learned about simple machines and how they help us. Today, we’re going to learn about Simple Machines in the House.
Objectives
By the end of this lesson, you should be able to:
- Define simple machines.
- Identify simple machines in the house.
Simple Machines in the House
What are Simple Machines?
Simple machines are tools that make work easier. They help us lift heavy objects, move things, and cut things. There are many different types of simple machines, and we can find them all around us, even in our own homes!
Types of Simple Machines
Some of the main types of simple machines include:
- Lever: A lever is a rigid bar that pivots on a fixed point called a fulcrum. It helps us lift heavy objects or apply force to something. Examples of levers in the house include:
- Nail clippers
- Hammer
- Nutcracker
- Toilet handle
- Pliers
- Pulley: A pulley is a wheel with a groove that helps change the direction of force. It makes it easier to lift heavy objects. Examples of pulleys in the house include:
- Window blinds
- Garage doors
- Bicycle chains
- Clotheslines
- Water well bucket/rope
- Wedge: A wedge is a simple machine that is used to split or separate things. It has a thick end and a thin end. Examples of wedges in the house include:
- Scissors
- Screw
- Spoon
- Fork
- Grater
- Peeler
- Knife
- Wheel and Axle: A wheel and axle is a simple machine that consists of a wheel attached to a rod called an axle. It helps us move things easily. Examples of wheels and axles in the house include:
- Office chairs
- Steering wheels in cars
- Tap/faucet knobs
- Electric fans
Evaluation Questions
Now that you’ve learned about simple machines, let’s see if you can answer these questions:
- What is a simple machine?
- Give four examples of simple machines you find in your house.
- Why are simple machines important in our everyday life?
- Can you explain how a lever works? Give an example from your house.
- Can you explain how a pulley works? Give an example from your house.
Conclusion
Today, we learned about simple machines and how they make our lives easier. We also learned about different types of simple machines and how they work. Remember to look around your house and see if you can find any simple machines! Keep exploring and learning about the world around you. See you in the next lesson!
