Natural Sciences - Term 3 - Week 5

An ecosystem is a community of living organisms interacting with their environment. It includes both biotic factors, such as plants and animals, and abiotic factors, like water, soil, and climate. Ecosystems can be as small as a puddle or as large as a forest. Understanding how these components work together helps us appreciate the balance of nature.

Let's take a look at a simple ecosystem: a pond. In this ecosystem, we have fish, frogs, and plants like lily pads. The water in the pond is essential for the survival of these organisms. The fish eat smaller creatures, while frogs may eat insects. Plants provide oxygen and food. All these components interact, showing how ecosystems function.

In groups, discuss the ecosystems you can find in our local area. Think about parks, gardens, or even your backyard. What plants and animals live there? How do they depend on each other? Share your thoughts with the class, and let's create a list of local ecosystems and their components.

Choose an ecosystem to research, such as a desert, rainforest, or ocean. Create a poster that includes the following: a drawing of the ecosystem, a list of at least five plants and animals found there, and a brief description of how they interact. Be prepared to present your poster to the class and explain your findings.

• Biotic and abiotic
• Living and non-living
• Plants and animals
• Water and soil

Answer: Biotic and abiotic

Ecosystems consist of biotic factors (living organisms) and abiotic factors (non-living elements).

• Water
• Soil
• Frog
• Sunlight

Answer: Frog

A frog is a living organism, making it a biotic factor in an ecosystem.

• Predators
• Producers
• Decomposers
• Consumers

Answer: Producers

Plants are producers because they create their own food through photosynthesis.

Answer: Water

Water is an essential abiotic factor that supports life in ecosystems.

• Desert
• Tundra
• Rainforest
• Grassland

Answer: Rainforest

Rainforests receive high amounts of rainfall and host a wide variety of species.

Answer: Predators hunt and eat prey.

Predators rely on prey for food, creating a balance in the ecosystem.

• The maximum number of organisms it can support
• The number of species in an ecosystem
• The amount of food available
• The size of the ecosystem

Answer: The maximum number of organisms it can support

Carrying capacity refers to the largest population size an environment can sustain.