Natural Science - Term 3 - Week 1

In Natural Science, vocabulary is crucial for understanding concepts and communicating ideas. This lesson will introduce key terms that are commonly used in our studies, such as 'ecosystem', 'photosynthesis', 'habitat', and 'biodiversity'. We will explore these terms through definitions, examples, and their significance in scientific discussions.

Let's take the term 'ecosystem'. An ecosystem includes all living organisms in a particular area, interacting with each other and their environment. For instance, a forest ecosystem consists of trees, animals, plants, and microorganisms, all of which depend on each other for survival. Understanding this term helps us discuss environmental issues and conservation efforts.

Now, let's work together on a vocabulary matching exercise. I will provide a list of terms and 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'. This will help reinforce your understanding of these key concepts.

For your independent practice, I want you to create a short paragraph using at least five of the vocabulary terms we discussed today. Make sure to use each term correctly in context. After writing your paragraph, share it with a partner and discuss how you used the terms. This will help you apply your learning and gain confidence in using scientific vocabulary.

• The variety of life in the world or in a particular habitat
• The process of plants making food
• The study of ecosystems
• The number of species in a single organism

Answer: The variety of life in the world or in a particular habitat

Biodiversity refers to the variety of living organisms in a specific area, which is essential for ecosystem health.

• Respiration
• Photosynthesis
• Transpiration
• Decomposition

Answer: Photosynthesis

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

Answer: An ecosystem is a community of living organisms interacting with each other and their physical environment.

This definition highlights the interconnectedness of organisms and their surroundings.

• A type of plant
• The natural home of an organism
• A scientific experiment
• A method of energy production

Answer: The natural home of an organism

A habitat is the environment where a species lives and thrives.

Answer: Biodiversity is important because it ensures ecosystem resilience, provides resources for food, medicine, and contributes to ecological balance.

Biodiversity supports the health of ecosystems and human survival.

• Plants
• Animals
• Rocks
• Weather

Answer: Weather

While weather affects ecosystems, it is not a direct component like plants, animals, and rocks.