Natural Science - Term 2 - Week 4

In Natural Science, vocabulary is crucial for effective communication of concepts. This week, we will focus on terms such as 'ecosystem', 'photosynthesis', 'habitat', and 'biodiversity'. Understanding these terms will help you describe processes and interactions in the natural world. We will discuss each term, its definition, and its relevance in scientific contexts.

Let's look at the process of photosynthesis as an example. Photosynthesis is the process by which green plants use sunlight to convert carbon dioxide and water into glucose and oxygen. The equation for photosynthesis is: 6CO2 + 6H2O + light energy → C6H12O6 + 6O2. This example illustrates how plants play a vital role in ecosystems by producing oxygen and serving as a food source.

Now, let's practice using the vocabulary we discussed. I will provide you with sentences with missing words related to our key terms. Fill in the blanks with the correct vocabulary words. For example: 'The _____ is the place where an organism lives.' (Answer: habitat). Work in pairs to complete the sentences and share your answers with the class.

For your independent practice, create a concept map that includes the key terms we have learned this week. Connect the terms with lines and add brief explanations of how they relate to each other. For instance, connect 'ecosystem' to 'biodiversity' and explain how biodiversity contributes to the health of an ecosystem. This task will help you visualize the relationships between concepts and reinforce your understanding.

• Respiration
• Photosynthesis
• Transpiration
• Digestion

Answer: Photosynthesis

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

• Ecosystem
• Biodiversity
• Population
• Community

Answer: Biodiversity

Biodiversity refers to the variety of life forms in a given habitat, including different species of plants, animals, and microorganisms.

Answer: A habitat is the natural environment in which an organism lives.

A habitat provides the necessary resources for an organism's survival, including food, water, and shelter.

• Oxygen
• Nitrogen
• Carbon Dioxide
• Hydrogen

Answer: Carbon Dioxide

Plants take in carbon dioxide from the atmosphere to use in the process of photosynthesis.

Answer: Sunlight provides the energy needed for plants to convert carbon dioxide and water into glucose.

Without sunlight, the photosynthesis process cannot occur, as it is essential for energy conversion.

• Producers
• Consumers
• Decomposers
• Pollutants

Answer: Pollutants

Producers, consumers, and decomposers are all integral parts of an ecosystem, while pollutants are harmful substances that can disrupt it.

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