Science for Grade 3
1 Introduction to Science
1-1 Understanding the Nature of Science
1-2 Importance of Observation and Experimentation
1-3 Scientific Tools and Their Uses
2 Living Things and Their Habitats
2-1 Characteristics of Living Things
2-2 Classification of Living Things (Plants and Animals)
2-3 Habitats and Ecosystems
2-4 Adaptations of Living Things to Their Environment
3 Plants
3-1 Parts of a Plant and Their Functions
3-2 Types of Plants (Flowering and Non-flowering)
3-3 Plant Life Cycles
3-4 Importance of Plants to Living Things
4 Animals
4-1 Animal Classification (Vertebrates and Invertebrates)
4-2 Animal Life Cycles
4-3 Animal Behavior and Adaptations
4-4 Importance of Animals to Ecosystems
5 Human Body
5-1 Basic Parts of the Human Body
5-2 Functions of Major Body Systems (Skeletal, Muscular, Digestive, Respiratory)
5-3 Importance of Healthy Habits
5-4 Safety and First Aid Basics
6 Materials and Their Properties
6-1 Classification of Materials (Solids, Liquids, Gases)
6-2 Properties of Common Materials
6-3 Changes in Materials (Physical and Chemical Changes)
6-4 Recycling and Conservation of Materials
7 Forces and Motion
7-1 Understanding Forces (Push and Pull)
7-2 Types of Motion (Linear, Circular)
7-3 Simple Machines (Lever, Pulley, Inclined Plane)
7-4 Balanced and Unbalanced Forces
8 Energy and Its Forms
8-1 Sources of Energy (Renewable and Non-renewable)
8-2 Forms of Energy (Light, Heat, Sound, Electrical)
8-3 Energy Transformations
8-4 Conservation of Energy
9 Earth and Space
9-1 Structure of the Earth (Crust, Mantle, Core)
9-2 Weather and Climate
9-3 Earth's Resources and Their Uses
9-4 The Solar System and Beyond
10 Environmental Science
10-1 Importance of Biodiversity
10-2 Human Impact on the Environment
10-3 Conservation Efforts and Sustainable Practices
10-4 Global Environmental Issues (Pollution, Climate Change)
Living Things and Their Habitats

Living Things and Their Habitats

What are Living Things?

Living things are organisms that have certain characteristics such as the ability to grow, reproduce, and respond to their environment. They need food, water, air, and a place to live to survive.

What are Habitats?

A habitat is the natural environment where a living thing lives. It provides everything the organism needs to survive, including food, water, shelter, and space to grow. Different living things have different habitats based on their needs.

Examples of Living Things and Their Habitats

1. Fish and Water Habitats

Fish are living things that live in water. They have gills that help them breathe underwater. Their habitats include oceans, rivers, lakes, and ponds. For example, a goldfish lives in a fish tank or pond, where it finds food like fish flakes and has a clean environment to swim in.

2. Birds and Forest Habitats

Birds are living things that live in forests. They have wings that help them fly and beaks that help them eat different types of food. Their habitats include trees where they build nests. For example, a sparrow lives in a forest where it finds insects to eat and builds its nest in the branches of a tree.

Why Habitats are Important

Habitats are important because they provide everything a living thing needs to survive. If a habitat is destroyed or changed, the living things that depend on it may not survive. For example, if a forest is cut down, the birds that live there will lose their homes and may not find enough food to eat.

Conclusion

Living things and their habitats are closely connected. Each living thing has a specific habitat that meets its needs for survival. Understanding these connections helps us appreciate the diversity of life on Earth and the importance of protecting habitats.