High School Physical Science
Ocean Acidification and Chemical Equilibrium
Watch algae change the pH of water.
Students put Algae Beads in an indicator solution. As the algae take up carbon dioxide, the color shifts and shows the pH changing.
How the lab meets it
What students do that satisfies the standard
NGSS HS-PS1-6
Standard: Refine the design of a chemical system by specifying a change in conditions that would produce increased amounts of products at equilibrium.
What the kit does: Students change light or carbon dioxide and see the equilibrium shift.
Honest fit: partial. Algae shift pH by taking up carbon dioxide and an indicator shows the shift, but students do not redesign the system.
Free downloads
Our Lesson Plans
Algae and Climate Change
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Algae Beads: Seven Lessons for High School
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Kits for these lessons
Algae Beads: Make Your Own FULL KIT
Algae Research Supply: Algae Beads