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Blood and Guts – The Lungs

Bromothymol Blue reacts to the acid in breath and changes from blue to yellow. Great experiment when studying the respiratory system!

Demonstrating Photosynthesis w/ Bromothymol Blue Experiment - Scientific Method

In this activity 'Demonstrating Photosynthesis with Bromothymol Blue' students use Bromo blue to photosynthesis occurring. Students use the indicator to show the presence of Carbon Dioxide and the lack of its presence after it was used by a sprig of elodea.

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Demonstrating Photosynthesis w/ Bromothymol Blue Experiment - Scientific Method

In this activity 'Demonstrating Photosynthesis with Bromothymol Blue' students use Bromo blue to photosynthesis occurring. Students use the indicat...

Carbon Cycle Lab- Photosynthesis and Respiration

This is a fool-proof lab to demonstrate photosynthesis and respiration in aquatic plants. This lab works great when teaching about the carbon cycle as well. In this lab students will learn that plants only do photosynthesis in the light and in the dark cellular respiration occurs. Materials needed (per group): 4 test tubes with lids or parafilm, water, bromothymol blue, straw, elodea or other aquatic plant, test tube rack, aluminum foil, light source, and a goldfish is optional for an…

A simple demonstration using bromothymol blue shows students how the scientific…

Photosynthesis Lab: Elodea and Carbon Dioxide

The Elodea Took My Breath Away! Photosynthesis lab using BTB as an acid indicator to "see" photosynthesis in action!

Cellular Respiration: Measuring Differences in Muscular Activity

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