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In this activity on page 24, learners perform experiments to examine whether or not trash can float, blow around, or wash away.

Learners see convection currents in action in this highly visual demonstration. Sealed bags of colored hot or cold water are immersed in tanks of water.

In a class demonstration, learners observe a simple water cycle model to better understand its role in pollutant transport.

Learners develop awareness and understanding of the daily air quality using the Air Quality Index (AQI) listed in the newspaper or online.

In this demonstration, learners observe vinegar and baking soda reacting to form carbon dioxide (CO2) gas.

This is an activity about turbidity, or the amount of sediment suspended in water.

Learners develop an understanding of air pressure in two different activities.