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Science of Baseball     Physics behind baseball by seeing what makes a home run, finding out whether you can hit a 90-mph fast ball and participating in other activities. From Science of Baseball http://www.exploratorium.edu/baseball/

Senses and Sensitivity     Neuronal Alliances for Sight and Sound. Explore the elegantly simple sensory system of the leech for detecting mechanical sensation such as touching, pushing and pinching on its slimy body surface. The leech's nervous system is very simple and easily accessible. Principles discovered in simple systems may be relevant in trying to understand the human brain. From holidaylectures.org - Neurobiology http://www.hhmi.org/grants/lectures/97lect/

Andes Expedition: Searching for Inca Secrets     Virtual autopsy of the ice maiden that was killed five hundred years ago as a sacrifice to the gods in the Inca empire. The maiden's body preserved remarkably well. There is also a description of the expedition to the Andes led by Johan Reinhard, aimed to discover more Inca religious sites. Attractive graphics, but limited content. From Andes @ nationalgeographic.com http://www.nationalgeographic.com/andes/index.html

Cell biology     Introduce yourself to the cell as the fundamental unit of life and the scientific method. Review the cell cycle, learn about the cells that make up all living systems, their organelles, and the differences between living cells and viruses From The Biology Project: Cell Biology http://www.biology.arizona.edu/cell_bio/cell_bio.html

Developmental biology     Basic concepts of development in a variety of organisms. Learn about the experiments that gave scientists in the early 20th century insight into the mechanisms of development. From The Biology Project: Developmental Biology http://www.biology.arizona.edu/developmental_bio/developmental_bio.html

Mysterious Mummies of China     Preserved in peat bogs, frozen in ice, embalmed on the banks of the Nile - find out how mummies across the ages came to be preserved. From NOVA Online | Mysterious Mummies of China http://www.pbs.org/wgbh/nova/chinamum/

Odyssey of Life     Interview with photographer Lennart Nilsson, an essay by Joe Levine on embryonic development and evolution, an ongoing How Did We Get Here debate between Kenneth R. Miller and Phillip E. Johnson, video clips of morphing embryos, and Hot Science interactive activities. From NOVA Online/Odyssey of Life http://www.pbs.org/wgbh/nova/odyssey/

Visible Embryo     Illustrates the 23 stages occurring in the first trimester of pregnancy and every two weeks of the second and third trimesters. Use the spiral to navigate through the 40 weeks of pregnancy and preview the unique changes in each stage of human development. From Visembryo http://www.visembryo.com/baby/

Cut to the Heart     Anatomy of the human heart, and the history of heart surgery. Look at pictures of hearts affected by an illness. From NOVA Online | Cut to the Heart http://www.pbs.org/wgbh/nova/heart/

Ice mummies     Process of mummification and about how scientists study mummies that they find. Learn about the Peruvian expedition of 1996. From NOVA Online | Ice Mummies http://www.pbs.org/wgbh/nova/icemummies/