sun activity sheets

The bar graph shows the time sheet of Joe's daily activities. For which two activites does Joe spend equal amount of time? => School and Sleep or Play and Watch T.V. or Eat and Chores or Eat and Play..

Brain cells can generate electrical activity as a result of literally millions of action potentials of individual neurons. These electrical potentials are called brain waves and indicate activity of the cerebral cortex. Brain waves pass through the skull easily and can be detect..

This region extends up to 50 km above the Earth's surface. The upper limit of this region is called stratopause. This is a region of ozone activity and is known as ozonosphere. It is characterized by increase in temperature with increase in altitude. The rise in temperature in this regio..

The Greenhouse effect is the rise in temperature that the Earth experiences because certain gases in the atmosphere (referred to as greenhouse gases), trap energy from the Sun. Without these gases heat would escape back into space and living on Earth would be inhospitable with average tem..

>The biochemical reactions which convert carbon dioxide into carbohydrates are controlled by enzymes. These enzymes require an optimum temperature to be active. The temperature is maintained by the heat energy of the sun..

Energy Flow - Energy is the capacity to do work. Solar energy is transformed into chemical energy by the process of photosynthesis, and is stored in plant tissue and then transformed into mechanical and heat forms during metabolic activities. The energy, in the biological world, flows fro..

As light is transverse in character, all directions of vibrations of electric vector in the unpolarised light are confined to the XY plane. While looking along the X axis, vibrations of electric vector parallel to Y axis are seen and similarly along y axis. Hence light scattered in a direction perp..

Some objects have a wide range of lengths in the universe. They are tabulated below in the order of magnitude of their lengths. Size/distance of the object Order of magnitude of length (m) Radius of nucleus 10 -14 Diameter of an atom 10 -10 Radius of hydrogen atom 1..

Some objects have a wide range of lengths in the universe. They are tabulated below in the order of magnitude of their lengths. Size/distance of the object Order of magnitude of length (m) Radius of nucleus 10 -14 Diameter of an atom 10 -10 Radius of hydrogen atom 1..

A solar cooker contains a wooden box having thermocol lining from inside. A box made aluminium is placed inside the wooden box. The inner side of the aluminium box is painted black. The top is closed by a glass sheet. A plane mirror is fixed to the hinged lid. The box is closed such that ..