7th grade Physics

Motion and time

  • Slow or fast

  • Measurement of time

  • Measuring speed

  • Distance –time graph

winds, storms and cyclones

  • Air exerts pressure

  • Air expands on heating

  • Thunderstorms and cyclones

  • Destruction caused by cyclones

  • Advanced technology has helped

electric currents and its effects

  • Symbols of electric components

  • Heating effect of electric current

  • Magnetic effect of electric current

  • Electro magnet

Waste water story

  • Water, our life line

  • What is sewage?

  • Water freshens up-an eventful journey

  • Wastewater treatment plant (WWTP)

  • Better house keeping practices

  • Sanitation and diseases

  • Sanitation at public places

water a precious resource

  • How much water is available

  • Forms of water

  • Groundwater as an important source of water

  • Depletion of water table

  • Distribution of water

  • What role you can play

light

  • Light travels along a straight line

  • Reflection of light

  • Right or left

  • Playing with spherical mirrors

  • Sunlight –white or colored?