Natural Sciences - Term 2 - Week 8

Revision is the process of reviewing and reinforcing what you have learned. It helps to solidify your understanding and prepares you for assessments, which are tools to measure your knowledge and skills. In Natural Sciences, we focus on concepts such as ecosystems, the water cycle, and the properties of materials. This week, we will discuss these topics and how they interconnect, ensuring that you can explain them in your own words.

Consider a forest ecosystem. It consists of various components such as trees, animals, soil, and water. Each component plays a vital role. For instance, trees provide oxygen and habitat, while animals contribute to the food chain. When revising, think about how these components interact and the importance of each in maintaining balance within the ecosystem.

Let's create a vocabulary chart together. I will write down key terms such as 'photosynthesis', 'habitat', and 'biodiversity' on the board. As a class, we will discuss each term, and I want you to explain them in your own words. This will help reinforce your understanding and prepare you for the assessment.

For your mini-project, you will create a concept map that illustrates the relationships between different topics we have covered this term. Choose at least three concepts, such as the water cycle, ecosystems, and energy transfer. Use drawings, keywords, and arrows to show how they connect. Be prepared to present your concept map to the class and explain your thought process.

• Respiration
• Photosynthesis
• Transpiration
• Decomposition

Answer: Photosynthesis

Photosynthesis is the process where plants use sunlight, carbon dioxide, and water to create food.

• Sunlight
• Water
• Soil
• All of the above

Answer: All of the above

An ecosystem includes all living and non-living components, including sunlight, water, and soil.

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

Biodiversity is crucial for ecosystem health and resilience.

• The process of water moving through the environment
• The cycle of plant growth
• The process of photosynthesis
• The cycle of animal life

Answer: The process of water moving through the environment

The water cycle describes how water evaporates, condenses, and precipitates back to the earth.

Answer: Decomposers break down dead organic matter, returning nutrients to the soil.

This process is essential for nutrient cycling in ecosystems.

• Solar energy
• Wind energy
• Coal
• Hydropower

Answer: Coal

Coal is a fossil fuel and is considered a non-renewable resource.

• Desert
• Ocean
• Forest
• All of the above

Answer: All of the above

Habitats can be diverse, including deserts, oceans, and forests.