Natural Sciences - Term 2 - Week 8

Revision is the process of reviewing and reinforcing what you have learned. It helps to solidify knowledge and prepare for assessments, which are tools used to measure understanding and skills. In Natural Sciences, we focus on concepts such as ecosystems, the water cycle, and energy sources. This week, we will revisit these topics and ensure we are ready for our upcoming assessments.

Let's explore some key vocabulary words: 'ecosystem', 'habitat', 'photosynthesis', and 'energy'. For example, an ecosystem is a community of living organisms interacting with their environment. Photosynthesis is the process by which plants convert sunlight into energy. Understanding these terms is crucial for grasping the concepts we have studied this term.

In small groups, discuss the different components of an ecosystem. Consider the roles of producers, consumers, and decomposers. After 10 minutes, each group will share their findings with the class. This will help reinforce our understanding of how ecosystems function and the importance of each component.

For your mini-project, create a model of an ecosystem using materials you can find at home or in the classroom. Include at least three different organisms (plants and animals) and describe their roles. Write a short paragraph explaining how energy flows through your ecosystem. Be prepared to present your project to the class next week.

• Respiration
• Photosynthesis
• Decomposition
• Transpiration

Answer: Photosynthesis

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

• Producers
• Consumers
• Decomposers
• Weather

Answer: Weather

While weather affects ecosystems, it is not a living component like producers, consumers, and decomposers.

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

Habitats provide the necessary resources for organisms to survive, including food, water, and shelter.

• They produce energy
• They consume plants
• They break down dead matter
• They provide shelter

Answer: They break down dead matter

Decomposers recycle nutrients back into the ecosystem by breaking down dead plants and animals.

Answer: Plants are examples of producers.

Producers are organisms that can make their own food through photosynthesis, such as plants.

• Coal
• Natural Gas
• Solar Energy
• Nuclear Energy

Answer: Solar Energy

Solar energy is renewable because it is derived from the sun, which is constantly available.

Answer: The water cycle is the continuous movement of water from the ground to the sky and back again through processes like evaporation, condensation, and precipitation.

The water cycle describes how water circulates in the environment, ensuring that it is available for all living organisms.