How do germs spread? Watch and learn as Bill Nye the Science Guy demonstrates what happens to those germs you collect all day. [1:35]

Watch and learn with Bill Nye the Science Guy as he demonstrates how clouds form in the atmosphere using a glass bottle and a bicycle pump. [2:10]

Watch and learn as Bill Nye the Science Guy demonstrates how to spin really fast. [1:32]

Watch and learn with Bill Nye the Science Guy as he demonstrates this classic candle experiment. [0:57]

Learn about the radiometer as Bill Nye demonstrates how it works. [1:01]

Learn how to make your own magnet with some simple household items as Bill Nye the Science Guy demonstrates how an electromagnet works. [1:03]

Take a look at this video from Bill Nye the Science Guy as he demonstrates the science behind the Dunking Bird. [1:34]

Discover the effects of water vapor, the form water takes on as a gas, when it undergoes changes in atmospheric pressure as Bill Nye the Science Guy provides a demonstration of the compound water.

Learn all about Bill Nye, the science guy, and find out how he has contributed to many aspects of science.

This is an online photocopy of the original text of the children's book Bill Nye's Chestnuts Old and New by Bill Nye (1894), a collection of nonfiction, humorous stories, sketches, photographs, and memoranda from the Harvard Series.

This tutorial by Bill Nye explains an experiment that demonstrates how the shape of a funnel can affect how air flows through it.

This tutorial by Bill Nye explains how to create a tool for looking through the surface of water without being thwarted by reflections.

This tutorial from Bill Nye demonstrates the power of inertia by using a dictionary to soften a blow.

This tutorial from Bill Nye shows that gravity pulls on all objects at the same speed. It also demonstrates that, despite this, air resistance can cause certain objects to fall more slowly.

This tutorial from Bill Nye uses ice, salt, water, and food coloring to explain how ocean currents are caused by the flow of heat and salt.

This tutorial from Bill Nye uses newspaper to show how tectonic plates can crush together to create mountains.

This experiment with Bill Nye explains how to make a tornado in a bottle.

This tutorial by Bill Nye helps the learner to understand the concept of pressure. Using a simple paper U, learners can see the effects of low pressure, then learn what's happening on a molecular level.

This tutorial from Bill Nye explains why the moon appears smaller when it's higher in the sky and presents an experiment that proves that it's all in your head.

In this tutorial, Bill Nye uses marbles to explain momentum and Newton's third law: every action has an equal and opposite reaction.

This tutorial by Bill Nye introduces the concept of a cohesive force through an experiment involving a penny and droplets of soapy water.

This tutorial from Bill Nye demonstrates that freezing water expands, potentially cracking rock and causing erosion.

This tutorial from Bill Nye explains how to perform a simple experiment with a rubber band. The experiment demonstrates how friction can dissipate energy as heat.

This tutorial from Bill Nye explains how to make a kazoo out of a cardboard tube.