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In this activity, learners explore the human influences on the carbon cycle and examine how fossil fuels release carbon.

This simple and engaging astronomy activity explains nuclear fusion and how radiation is generated by stars, using marshmallows as a model.

Learners make a mobile model of a carbon atom using clay, wire, and pipe cleaners.

In this activity about combustion and energy, learners observe a burning candle in a sealed jar and the burning of white sugar.

Learners experiment with a piece of Silly Putty® by stretching, bouncing, and snapping it. They then create flubber, a similar substance, by mixing diluted glue and a solution of sodium borate.