Did you know: Galileo discovered lunar mountains and craters
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  • Simple Microscope

    Posted on September 23rd, 2014 rudrarup No comments

    micro organismThe invention of the microscope is not credited to any one person. Strong lenses were used since antiquity to examine tiny objects. Microscopes were byproducts of research on telescopes by men such as Galileo and Kepler.

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  • Tropical Rain Forest

    Posted on January 16th, 2012 rudrarup No comments

    Here is an activity to create a tropical rainforest of your own. Drag the animals to place. Add the arrows to connect those animals. The arrows should point from the prey to the predator animal. Arrows should represent energy transfer from one animal to another animal. Just click the following link and have fun.

    Tropical Rain Forest

  • Blood Circulation System

    Posted on December 8th, 2011 rudrarup No comments

    The main components of the human cardiovascular system are the heart, blood, and blood vessels. It includes: the pulmonary circulation, a “loop” through the lungs where blood is oxygenated; and the systemic circulation, a “loop” through the rest of the body to provide oxygenated blood. An average person contains five to six quarts (roughly 4.7 to 5.7 liters) of blood, which consists of plasma, red blood cells, white blood cells, and platelets. Also, the digestive system works with the circulatory system to provide the nutrients the system needs to keep the heart pumping.

    Following is a nice video about how the blood circulation system works in the human body.

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