Natural Sciences - Term 2 - Week 5

A system is a group of parts that work together to form a whole. For example, a bicycle is a system made up of wheels, pedals, and a frame. A structure is something that is built or constructed, like a bridge or a house. In this lesson, we will explore how different systems and structures function and how they are interconnected.

Let's look at a simple example: a plant. The plant is a system that includes roots, stems, and leaves. Each part has a specific role: roots absorb water, stems support the plant, and leaves make food through photosynthesis. Another example is a school. It is a structure that includes classrooms, a library, and a playground, all working together to provide education and recreation.

In groups, discuss different systems and structures you see in your home or school. Think about how they work together. For instance, how does the plumbing system in your house function? What about the school’s organizational structure? Share your ideas with the class, and let’s build our vocabulary by writing down new words we encounter during our discussion.

Choose a system or structure that interests you, such as a birdhouse, a simple machine, or a water cycle model. Use materials available at home or in class to create a model of your chosen system or structure. Write a short description explaining how it works and its importance. Be prepared to present your model to the class and explain your findings.

• A single object
• A group of parts working together
• A type of structure
• An animal

Answer: A group of parts working together

A system is defined as a collection of components that interact and function together as a whole.

• A bicycle
• A tree
• A bridge
• A computer

Answer: A bridge

A bridge is a constructed entity designed to span physical obstacles, making it a clear example of a structure.

Answer: The transportation system.

The transportation system includes various modes of transport that work together to move people and goods.

• Support the plant
• Absorb water
• Make food
• Store nutrients

Answer: Make food

Leaves are responsible for photosynthesis, which is how plants create their food.

Answer: A structure is something that is built or made to serve a purpose.

Structures are constructed entities that serve specific functions, such as buildings or bridges.

• Wheels
• Pedals
• Frame
• Helmet

Answer: Helmet

A helmet is an accessory for safety, not a functional part of the bicycle system.

Answer: It helps us see how things work together and how to improve them.

Understanding systems and structures allows us to analyze their functions and find ways to enhance their efficiency.