Natural Science - Term 4 - Week 9

Vocabulary is essential in Natural Science as it helps us communicate complex ideas clearly. This week, we will focus on words that describe processes, phenomena, and scientific principles. Understanding these terms will enhance your ability to engage with scientific texts and discussions. We will explore words such as 'photosynthesis', 'ecosystem', 'matter', and 'energy'.

Let's take the word 'photosynthesis'. This term refers to the process by which green plants use sunlight to convert carbon dioxide and water into glucose and oxygen. In a sentence: 'During photosynthesis, plants absorb sunlight to produce food.' Notice how the term is used in a scientific context, which helps clarify its meaning.

Now, let's work together on a vocabulary matching exercise. I will provide you with a list of terms and their definitions. Your task is to match each term with the correct definition. For example, if I say 'ecosystem', you would match it with 'a community of living organisms and their environment'. After completing this, we will discuss the answers as a class.

For your independent practice, create a short paragraph using at least five vocabulary words we have learned this week. Make sure to use the words in a way that demonstrates their meanings. Once you have written your paragraph, share it with a partner and discuss how effectively you used the vocabulary.

• Respiration
• Photosynthesis
• Transpiration
• Digestion

Answer: Photosynthesis

Photosynthesis is the correct term for the process where plants use sunlight to create food.

• Ecosystem
• Habitat
• Biome
• Population

Answer: Ecosystem

An ecosystem includes both the living organisms and their physical environment.

Answer: Matter is anything that has mass and takes up space.

This definition captures the essence of what matter is in scientific terms.

• A type of matter
• The ability to do work
• A living organism
• A chemical reaction

Answer: The ability to do work

Energy is defined as the capacity to perform work or produce change.

Answer: A forest, a desert, or a coral reef.

These are all examples of ecosystems, each with distinct communities of organisms.

• Solid
• Liquid
• Gas
• Energy

Answer: Energy

Energy is not a state of matter; the states of matter are solid, liquid, and gas.

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

This definition highlights the importance of different species and their interactions.

• Carbon Dioxide
• Oxygen