Hi, young learners! Welcome back to Primary 4 Basic Science Technology. In our previous lesson, we learned about Types of Vehicles II – Car and Bus. Today, we’re going to learn about Types of Vehicles – Truck and Trailer.
Objectives
By the end of this lesson, you should be able to:
- Identify the external parts of a truck and trailer.
- Show appreciation for the role of trucks and trailers in society.
- Discuss the uses of trucks and trailers in community activities.
Truck And Trailer as Vehicles
Trucks and trailers are large vehicles primarily used for transporting goods. Trucks have an engine and cabin, while trailers are attached to trucks for carrying more goods.
Truck External Parts:
Some of the main external parts of a truck include:
- Cabin: Where the driver sits and operates the truck.
- Engine Compartment: Houses the engine, located under or in front of the cabin.
- Headlights: Located at the front, used for visibility in the dark.
- Taillights: Located at the back, indicating braking and turning.
- Wheels: Typically six or more, depending on the truck size.
- Side Mirrors: For the driver to see the sides and rear.
- Fuel Tank: Stores the truck’s fuel.
- Exhaust Pipe: Ejects exhaust gases from the engine.
- Windshield Wipers: For clearing rain or debris from the windshield.
Trailer External Parts:
There are many external parts of a trailer, such as:
- Cargo Area: The main space for storing and transporting goods.
- Wheels: Typically four or more, depending on the trailer size.
- Tailgate/Ramp: The back part that opens for loading and unloading goods.
- Brake Lights: Located at the back, indicating when the trailer is slowing down.
- Turn Signals: Indicate the direction the trailer is turning.
- Coupling Device: Connects the trailer to the truck.
- Landing Gear: Supports the trailer when it’s not attached to a truck.
- Side Doors: Some trailers have side doors for additional access.
- Roof: Covers the top of the trailer to protect goods from elements.
Uses of Truck And Trailer
Trucks and trailers play a vital role in our society. Some of their major uses include:
- Transporting goods over long distances.
- Moving construction materials.
- Delivering food and perishable items.
- Carrying heavy machinery.
- Assisting in logistics and supply chain operations.
Evaluation Questions
Now that you’ve learned about trucks and trailers, let’s see if you can answer these questions:
- Can you name three external parts of a truck?
- What is one important use of trailers in our community?
- Draw a simple picture of a truck and trailer.
- What are some other types of vehicles you know?
- Why are trucks and trailers important for our society?
Conclusion
Today, we learned about trucks and trailers, their external parts, and their important role in transportation. Remember, these vehicles help us get the things we need every day. Keep exploring and learning about different types of vehicles! See you in the next lesson!
