Animations, such as one demonstrating how drops of water move in vertical circles as a wave passes, are found throughout the site. Visitors have the opportunity to take a multiple choice review quiz over many of the presented topics. The site offers directions for hands-on activities, such as one in which students simulate how a submarine sinks. They use a medicine dropper, an olive jar almost filled with water, and a rubber sheet to show that increased water pressure forces water into the dropper causing it to sink. Accompanying the instructions is an animation of a sinking submarine whose ballast tanks are filling with water.
Visitors can post questions to the site's experts.
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