Living Things and Their Habitats

Overview

This unit introduces students to the diversity of living things and their relationships with their habitats. Students will explore different habitats, investigate life cycles, understand food chains, and discover how organisms are adapted to their environments. Through observation, research, and hands-on activities, students will develop a scientific understanding of the interdependence of living things.

Key Concept

Systems — Habitats and ecosystems function as systems where living and non-living components interact and depend on each other.

Related Concepts

• Adaptation — The features and behaviours that help organisms survive in their habitats.
• Environment — The surroundings in which organisms live, including physical and biological factors.
• Interdependence — The way organisms depend on each other and on their environment for survival.

Global Context

Globalization and Sustainability — How do human activities affect habitats around the world? How can we protect the environments that living things depend on?

Statement of Inquiry

Living things depend on their habitats and on each other in complex webs of interdependence.

Inquiry Questions

Factual Questions

1. What is a habitat and what are the main types?
2. What are the stages of a typical life cycle?
3. What is a food chain and what are its parts?

Conceptual Questions

1. How are organisms adapted to survive in their habitats?
2. Why are all living things in a habitat connected?
3. How does change in one part of a habitat affect other parts?

Debatable Questions

1. Should humans intervene to protect endangered species?
2. Is it more important to protect a habitat or the individual animals within it?
3. Can a habitat recover from human damage?

ATL Skills

Thinking Skills

• Analyse the relationships between organisms and their habitats.
• Compare adaptations across different habitats.
• Evaluate the impact of changes on habitat systems.

Communication Skills

• Describe habitats and organisms using scientific vocabulary.
• Create diagrams of food chains and life cycles.
• Present research findings about habitats and organisms.

Research Skills

• Observe and record information about local habitats.
• Research organisms and their adaptations.
• Use identification guides and digital resources.

Self-Management Skills

• Maintain observation journals with accurate records.
• Work safely during outdoor fieldwork.
• Manage time for research and presentation projects.

Content

Week 1: What Is a Habitat?

• Defining habitat: where living things live.
• Types of habitats: forests, deserts, oceans, ponds, grasslands.
• Living (biotic) and non-living (abiotic) components.
• Exploring and observing a local habitat.

Week 2: Life Cycles

• What is a life cycle? Growth, reproduction, and change.
• Life cycles of mammals, birds, insects, amphibians, and plants.
• Comparing different life cycles.
• Metamorphosis: complete and incomplete.

Week 3: Food Chains and Food Webs

• Producers, consumers, and decomposers.
• Building simple food chains.
• From food chains to food webs.
• What happens when a food chain is disrupted?

Week 4: Adaptations to Habitats

• Structural adaptations: body parts and features.
• Behavioural adaptations: actions and behaviours.
• Adaptations in different habitats: desert, aquatic, cold, tropical.
• Camouflage, mimicry, and special features.

Week 5: Human Impact on Habitats

• How human activities affect habitats: pollution, deforestation, urbanisation.
• Endangered species and habitat loss.
• Conservation efforts around the world.
• How can we help protect habitats?

Week 6: Habitat Project and Reflection

• Researching a specific habitat in depth.
• Creating a habitat diorama or digital presentation.
• Reflecting on the importance of protecting habitats.
• Unit review and summative assessment.

Summative Assessment

Habitat Research Project: Students will research a specific habitat and create a comprehensive presentation (diorama, poster, or digital presentation) that includes the location and climate, at least five organisms living there with their adaptations, a food chain or web, and an explanation of threats and conservation efforts.

Organism Adaptation Report: Students will select one organism and write a report explaining how its structural and behavioural adaptations help it survive in its habitat, including diagrams and labelled illustrations.

Formative Assessment

• Habitat classification and sorting activities.
• Life cycle diagram creation.
• Food chain construction exercises.
• Adaptation identification worksheets.
• Habitat observation journals.
• Quizzes on vocabulary and concepts.

Interdisciplinary Connections

• Geography: Locations of different habitats and biomes around the world.
• Art: Creating habitat dioramas and scientific illustrations.
• Mathematics: Data collection and graphing about local organisms.
• Language and Literature: Reading and writing about nature and conservation.

Service as Action

• Create a wildlife garden or pollinator habitat on school grounds.
• Build and install bird feeders, bug hotels, or bat boxes.
• Participate in a local habitat clean-up or restoration project.
• Create educational displays about local habitats for the school community.

IB Learner Profile

• Inquirers: Students investigate living things and habitats with curiosity.
• Caring: Students develop concern for living things and their environments.
• Knowledgeable: Students understand habitat systems and interdependence.
• Thinkers: Students analyse how organisms are adapted to their environments.
• Reflective: Students reflect on their role in protecting habitats.

Self-Test

1. What is a habitat? Give three examples.
2. Name and describe the stages of a butterfly's life cycle.
3. What is the difference between a producer and a consumer?
4. Draw a simple food chain with four organisms.
5. What is a structural adaptation? Give an example.
6. What is a behavioural adaptation? Give an example.
7. How do humans affect habitats?
8. Why are decomposers important in a habitat?
9. List three ways to help protect local habitats.
10. Choose one animal and explain three ways it is adapted to its habitat.