Monster marshmallows? The science of sugar? And the world of microorganisms? All of these come together on the Exploratorium in San Francisco's website. The site, dedicated to creative activities appropriate for school-age students, includes apps and videos that provide fun explorations of the aforementioned topics and many more. First-time visitors can browse by type of activity, look over the staff picks, and look over the list of topics, which include Human Body, Living Things, and Seeing. The Listening area is a great place to start, as it features 12 different activities, including "Kitchen Sink-o-Pation" and "Dot Mixer." Visitors can sign up to receive notices about updates via a range of social media, including Google+, Twitter, and Facebook.