Natural Science - Term 4 - Week 1

In this lesson, we will focus on reviewing the essential concepts and vocabulary we have learned in Natural Science this term. This is an important step to ensure that you are well-prepared for upcoming assessments. We will engage in various activities that will help reinforce your understanding and application of these concepts. Pay close attention to the vocabulary as it is crucial for your scientific communication.

Let’s take the term 'ecosystem' as an example. An ecosystem is a community of living organisms interacting with their environment. To refine our understanding, we can break it down: 'eco-' refers to the environment, and '-system' indicates a set of connected parts. By understanding the components of an ecosystem, such as producers, consumers, and decomposers, we can better grasp how energy flows within it.

Now, let’s work together on a vocabulary matching exercise. I will provide you with a list of terms related to ecosystems, such as 'habitat', 'biodiversity', and 'food chain'. Your task is to match each term with its correct definition. This will help reinforce your understanding of these key concepts. After completing the exercise, we will discuss the answers as a class.

For your independent practice, you will create a simple diagram of an ecosystem of your choice. Include at least five organisms and label them as producers, consumers, or decomposers. Additionally, write a short paragraph explaining how energy flows through your ecosystem. This activity will allow you to apply what you have learned and demonstrate your understanding of the relationships within an ecosystem.

• A group of similar species
• A community of living organisms interacting with their environment
• A type of food chain
• A habitat for animals

Answer: A community of living organisms interacting with their environment

An ecosystem encompasses all living organisms in a particular area, along with their physical environment.

• A lion
• A mushroom
• A tree
• A rabbit

Answer: A tree

Producers, like trees, create their own food through photosynthesis.

Answer: Biodiversity refers to the variety of life in a particular habitat or ecosystem.

Biodiversity is crucial for ecosystem health and resilience.

• They produce energy
• They consume plants
• They break down dead organic matter
• They compete with producers

Answer: They break down dead organic matter

Decomposers recycle nutrients back into the ecosystem by breaking down dead organisms.

Answer: The sun

The sun provides the energy that drives photosynthesis in producers.

• A sequence of organisms each dependent on the next as a source of food
• A list of all organisms in an ecosystem
• A diagram showing the energy flow in an ecosystem
• A type of habitat

Answer: A sequence of organisms each dependent on the next as a source of food

A food chain illustrates how energy is transferred from one organism to another.

• Niche
• Ecosystem