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In this activity, learners observe what happens when yeast cells are provided with a source of food (sugar). Red cabbage "juice" will serve as an indicator for the presence of carbon dioxide.

In this activity, learners will make their own slushies and learn some of the science behind how the process works.

In this activity, learners conduct an experiment to explore how water flows up from a tree's roots to its leafy crown.

In this activity, learners compare and contrast their own skin (including the area covered) with that of an orange.

In this activity (on page 2 of PDF), learners create a low-tech refrigerator that requires no electricity to keep food from spoiling.

In this activity on page 2 of the PDF, learners test different materials to find out which is the best insulator.

This lesson focuses on how nanotechnology has impacted our society and how engineers have learned to explore the world at the nanoscale.