Natural Science - Term 3 - Week 1

In Natural Science, vocabulary is essential for understanding concepts and communicating ideas effectively. This week, we will focus on key terms that are commonly used in our studies, such as 'ecosystem', 'photosynthesis', 'habitat', and 'biodiversity'. Knowing these terms will help you grasp the material better and participate in discussions.

Let's take the term 'ecosystem'. An ecosystem is a community of living organisms interacting with their environment. For example, a forest ecosystem includes trees, animals, plants, and microorganisms, all of which depend on each other. When we discuss ecosystems, we can use this term to describe various interactions and relationships within that environment.

Now, let's work together on a vocabulary matching exercise. I will provide you with a list of terms and their definitions. Your task is to match each term with the correct definition. For example, if I say 'photosynthesis', you should match it with 'the process by which green plants use sunlight to synthesize foods with the help of chlorophyll'. Let's do this as a class and discuss any terms that are unclear.

For your independent practice, I want you to choose five vocabulary words from our list and write a sentence for each, using the word in a scientific context. After that, create a short paragraph that includes at least three of these words, demonstrating your understanding of how they relate to each other. This will help reinforce your learning and allow you to express your knowledge creatively.

• Respiration
• Photosynthesis
• Transpiration
• Digestion

Answer: Photosynthesis

Photosynthesis is the process where plants use sunlight to convert carbon dioxide and water into glucose and oxygen.

• Population
• Ecosystem
• Biome
• Habitat

Answer: Ecosystem

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

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

Biodiversity is crucial for ecosystem health and resilience.

• A type of plant
• A place where an organism lives
• A food chain
• A climate zone

Answer: A place where an organism lives

A habitat provides the necessary conditions for an organism to survive and reproduce.

Answer: Producers, such as plants, create energy through photosynthesis and form the base of the food chain.

Producers are essential for providing energy to other organisms in the ecosystem.

• Growth
• Reproduction
• Photosynthesis
• Response to stimuli

Answer: Photosynthesis

While many living things can photosynthesize, not all do; thus, it is not a universal characteristic.

Answer: A food chain is a sequence that shows how energy and nutrients flow from one organism to another in an ecosystem.

Food chains illustrate the feeding relationships between organisms.