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This activity requires a Pico Cricket (tiny computer).

This three-part lab helps learners understand the essential principles governing diffusion and osmosis.

In a series of three experiments, learners explore the basics of biotechnology using self-locking plastic baggies. Each experiment demonstrates a phenomenon or principle of biotechnology.

This experiment allows learners to experience a small scale "epidemic," demonstrating the ease with which disease organisms are spread, and enables learners to determine the originator of the "epidemi

In this activity (page 6 of the PDF), learners will observe both a chemical and a physical change.