Topics
Natural Resources – Air, Water and Land
- Natural Resources
- Atmosphere and Its Layers
- Air Around Us
- Composition and Components of Air
- Importance of Air
- Air Pollution and Its Causes
- Water: Our Lifeline
- Availability of Water
- Composition of Water
- Importance of Water
- Scarcity of Water
- Land
- Soil Formation
- The Importance of Conserving Earth’s Natural Resources
The Living World
Diversity in Living Things and Their Classification
Disaster Management
Substances in the Surroundings –Their States and Properties
Substances in Daily Use
Nutrition and Diet
- Nutrients and Nutrition
- Component of Food
- Carbohydrates
- Diseases Due to Deficiency of Carbohydrates
- Fats (Lipids)
- Diseases Due to Deficiency of Fats
- Proteins
- Diseases Due to Deficiency of Proteins
- Vitamin and Minerals
- Diseases Due to Deficiency of Vitamin
- Diseases Due to Deficiency of Minerals
- Fibre
- Diseases Due to Deficiency of Fibre
- Water
- Diseases Due to Deficiency of Water
- A Balanced Diet
- Nourishment and Malnutrition
- Food Adulteration
Our Skeletal System and the Skin
Motion and Types of Motion
Force and Types of Force
Work and Energy
- Force, displacement and work
- Energy
- The relationship between work and energy
- Forms of Energy
- Mechanical Energy
- Heat Energy (Thermal Energy)
- Light Energy
- Sound energy
- Chemical Energy
- Transformation of Energy
- Energy Resources
- Conventional energy resources or non-renewable energy resources
- Non-conventional energy resources or renewable energy resources
- Energy saving and green energy
Simple Machines
Sound
Light and the Formation of Shadows
Fun with Magnets
The Universe
Modes of Nutrition in Plants
Plants obtain their food in different ways. There are three main types of nutrition in plants: autotrophic nutrition, heterotrophic nutrition, and insectivorous plants.
Method of nutrition in plants
Types of Nutrition in Plants:
| Type of Plant | Description | Examples | Special Features |
|---|---|---|---|
| Autotrophic Plants | Produce their own food using sunlight, water, and CO₂ through photosynthesis. | Hibiscus, Pomegranate, Periwinkle | Contain chlorophyll for capturing sunlight and making food. |
| Heterotrophic Plants | Cannot make their own food; depend on other plants for nutrition. | Fungi, Loranthus, Dodder | Attach to host plants and absorb nutrients directly. |
| Insectivorous Plants | Trap and consume insects to get nutrients (especially nitrogen) due to poor soil. | Pitcher Plant, Venus Flytrap | Have special structures to trap insects; digest them to supplement nutrient intake. |
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