Environmental Studies (EVS)
Class 4 • 18 chapters • Detailed topic notes & practice
Light
Reflection, shadows, and transparent/translucent/opaque materials.
3 topics
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Sound
Vibration, pitch, and echo — how we hear the world.
3 topics
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Electricity
Simple circuits, conductors, and electrical safety at home.
3 topics
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Floating and Sinking
Floating and Sinking — notes and practice.
3 topics
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Force
Force — notes and practice.
3 topics
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Simple Machines
Simple Machines — notes and practice.
3 topics
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Materials & Properties
Hard/soft, transparent/opaque, and magnetic properties of materials.
3 topics
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Water Cycle
Evaporation, condensation, and rain — Earth's water cycle.
3 topics
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Air Composition
Oxygen, nitrogen, and carbon dioxide in air and why they matter.
3 topics
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Mixing and Dissolving
Mixing and Dissolving — notes and practice.
3 topics
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Changes of State
Changes of State — notes and practice.
3 topics
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States of Matter
States of Matter — notes and practice.
3 topics
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Food & Food Chains
Producers, consumers, and decomposers in ecosystems.
3 topics
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Plant Life Cycle
Seed, growth, flower and fruit — plant life cycle.
3 topics
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Body Systems
Digestion, breathing, and blood circulation intro.
3 topics
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Animal Life
Animal Life — notes and practice.
3 topics
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Habitats & Adaptation
Habitats & Adaptation — notes and practice.
3 topics
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Human Body & Health
Human Body & Health — notes and practice.
3 topics
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