Tag: base
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Acids, Bases, and pH Scale: A Coloring Worksheet
Teaching acids and bases can be challenging because many of the concepts are invisible. Students can’t see hydrogen ions, hydroxide ions, or the chemical reactions happening in a solution. That’s why visual learning tools are so valuable. Acidity and alkalinity are usually covered in chemistry, which is a prerequisite for AP biology, but students will…
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Demo: BTB and Carbon Dioxide
I have used this demonstration every year to introduce the scientific method. The worksheet below is optional and includes instructions for writing a lab report and doing a more involved investigation, but for the beginning of the year, I prefer to just have students observe and give their suggestions for how to test various hypotheses.…