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Learners observe different paper samples under ordinary room light and under a black light to learn some of the chemical differences between different types of paper.

This is written as a display, but can easily be adapted to a hands-on activity. Learners observe and shake containers of shiny liquids.

Learners measure a bottle full of air, and then use a vacuum pump to remove the air. When they re-weigh the bottle, learners find the mass is about 0.8g less.

This is an activity exploring color and color mixing.