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Off Base

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In this activity, learners explore the factors that tend to resist changes in pH of the ocean and why the ocean is becoming more acidic.
Over $20 per group Ages 14 - 18 1 to 2 hours

It's a Gas, Man

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In this activity, learners discover if carbon dioxide has an effect on temperature.
1 cent - $1 per group Ages 6 - 14 1 to 2 hours