“The future projects light, the past only shadow”
“Don’t’ let the shadows of yesterday spoil the sunshine of tomorrow”
Science is a systematic knowledge of the physical or material world gained through observation and experimentation. Science helps in developing our understanding of the world around us. Everything we know about the universe, from how trees reproduce to what an atom is made up of, is the result of scientific research and experiment. Light is a form of energy and is very important in all aspects of our lives. We see with our eyes but we cannot see anything when there is no light. We have noticed that in complete darkness no object is visible to us. Materials can be classified based on the amount of light they transmit. Materials that allow complete transmission of light are called transparent materials. Any object can be seen through the transparent material. An example of transparent material is pure glass. Opaque materials either reflect or absorb any incident light. As a result, light rays cannot pass through opaque materials. Translucent materials allow partial transmission of light through them. Transparent: Clean glass, water, air Translucent: Frosted glass, wax paper, butter paper, smoke. Opaque: Stone, metal, wood Some materials allow partial transmission of light. These are called translucent substances. Opaque substances do not allow transmission. These properties are caused by absorption, reflection, and scattering of light. Light rays can penetrate opaque materials to some depth. Activity A hands-on activity was conducted for class 5 related to shadows and light. Students were asked to form shadow and send pictures. The student also classified objects on the basis of transmission of light through them. Young Stafordians showed different transparent & translucent and opaque objects. In this way, they got in-depth knowledge of kinds of object. Through this activity, students got to different kinds of objects. Student showed different objects which made this concept more interesting and engrossing. Students also made shadow by standing in dark or in sun and understood how a shadow is formed and what are the things needed to form a shadow. After doing this activity they will never forget the concept of Light and shadow.