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Our website will be unavailable starting Friday, April 10 at 5:00 PM CST and will be back online Monday, April 13 at 6:00 AM CST.
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DC91728
Price: FREE
Carbon dioxide is an odorless, colorless gas. Place lit candles on a trough, create some invisible carbon dioxide gas in a beaker, and then “pour” the carbon dioxide down the trough. The gas becomes dramatically visible to the students as successive candles are extinguished.
