Natural Science - Term 4 - Week 9

In Natural Science, vocabulary is crucial for understanding concepts and communicating ideas effectively. This lesson will focus on key terms that are commonly used in various scientific contexts, such as 'ecosystem', 'photosynthesis', and 'biodiversity'. By familiarizing ourselves with these terms, we can better comprehend scientific texts and discussions.

Let's take the term 'photosynthesis'. This process is how plants convert sunlight into energy. In a sentence: 'Through photosynthesis, plants produce oxygen and glucose, which are essential for life on Earth.' Notice how the term is used to explain a scientific process, highlighting its importance in ecology.

Now, let's work on a vocabulary matching exercise. I will provide you with a list of scientific terms and their definitions. Your task is to match each term with the correct definition. For example, if I say 'biodiversity', you would match it with 'the variety of life in a particular habitat or ecosystem'. This will help reinforce your understanding of these terms.

For independent practice, choose five vocabulary words from our list and write your own sentences using each term. Make sure to demonstrate your understanding of the terms in context. After writing, pair up with a classmate to share your sentences and discuss how the vocabulary enhances your understanding of Natural Science.

• Respiration
• Photosynthesis
• Transpiration
• Decomposition

Answer: Photosynthesis

Photosynthesis is the process where plants convert sunlight into chemical energy.

• Ecosystem
• Biodiversity
• Population
• Community

Answer: Biodiversity

Biodiversity refers to the variety of living organisms in a particular area.

• Carbon Dioxide
• Oxygen
• Nitrogen
• Hydrogen

Answer: Oxygen

Oxygen is a byproduct of photosynthesis, released into the atmosphere.

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

This definition captures the essence of how organisms and their surroundings work together.

Answer: Sustainability refers to the ability to maintain ecological balance and avoid depletion of resources.

Sustainability is crucial for ensuring that natural resources are available for future generations.

• Producers
• Consumers
• Decomposers
• Pollutants

Answer: Pollutants

Pollutants are harmful substances and not a natural component of an ecosystem.

• To produce energy
• To consume plants
• To break down dead matter
• To compete with producers

Answer: To break down dead matter

Decomposers recycle nutrients by breaking down dead organisms.