Forces
Types of forces - gravity, friction, elastic spring force, magnetic force
When forces interacts, what are the effects
The bad and good of frictional forces
Ways of reducing friction
Gravity
Friction
Elastic spring force
Summary of interaction of forces
Forms and Uses of Energy
Types of energy - kinetic energy, potential energy (gravitational potential, elastic potential, chemical potential), electrical energy, light energy, thermal (heat) energy, sound energy
Conversion of energy
Types of energy
Energy conversion 1
Energy conversion 2
Sources of Energy
Different sources of energy
Fossil fuels as a non-renewable source of energy
Renewable energy sources such as solar, biomass, geothermal, hydropower and wind
Non-renewable energy vs renewable sources
renewable energy sources
Living Together
What is organism, population, habitat, community
Interdependence of different population in a habitat
Features of different types of communities
Effects of living and non-living factors in an environment on living things
Organism, population, community
Living and non-living factors in an environment
Communities and ecosystem
Food Chain and Food Web
Flow of energy in a food chain
Relationships in a food web
Producers and consumers
Prey and predators
How an organism's population size is affected in an ecosystem
Roles of organisms in an ecosystem
Food Chain
Food Web
Effect of changes to a population
Adaptations
Evolution and natural selection
Structural vs behavioral adaptations
Different ways organisms adapt in order to survive in their habitats
How animals adapt to cope with extreme temperatures
How aquatic animals adapt to get air from the aquatic environment
How different animals adapt for movement
How animals adapt to dark environment
How plants adapt to obtain enough sunlight
How animals adapt to catch prey and escape from predators
How organisms adapt for reproduction
Animal adaptations
Plant adaptations
How organisms survive in their habitats
BBC Top 5 Animal adaptations
Understanding evolution and natural selection
Case Study: Adaptations of a carnivorous plant
Man's impact on the Environment
How does Man interact with his environment
The negative impact of man's activities to his environment
Ways in which Man can make a positive impact on his environment
Human impact on the environment
Human impact on the biodiversity
Sustainable development