Light and Heat

Plants take carbon dioxide and water from their environment. They use the energy they capture from the sun to carry on a process known
as photosynthesis which converts carbon dioxide and water into sugar (glucose) and oxygen.

Plants are able to prepare their food in the presence of sunlight only. During this process, they liberate the life-giving gas, oxygen. We all need oxygen to survive. Do you know that in the night, when there is no Sun, the plants give out oxygen as well as carbon dioxide?

Plants release carbon dioxide during day as well as night. However, at night, plants release more carbon dioxide than oxygen.

The Sun is a tremendous source of energy on Earth. Scientists have invented numerous devices powered by the sunlight. Solar panels can trap the heat from the sun rays and store it. This facilitates the warming up of our houses during the winters. Also, the solar cells can power the lights and other devices.