Learners explore the use of variables in the scientific method. They identify the dependent and independent variables through pH testing. Students construct graphs of their data and analyze their findings.
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Using Water Chemistry as an Indicator of Stream Health
Will this water source support life? Small groups test the chemistry of the water drawn from two different sources. They then compare the collected data to acceptable levels to draw conclusions about the health of the source. The...
8th - 12th Science
New Review Preparation of Natural Indicators From Plants
Did you know you can make your own pH indicator from plants? The sixth lesson in a seven part series teaches pupils to do just that. They work with the extracts of natural colors from flowers and leaves to observe color changes in...
9th - 12th Science CCSS: Adaptable
2001 U.S. National Chemistry Olympiad National Exam Part II
Only eight problems are on this competitive national chemistry exam. It required the balancing of chemical equations, solving stoichiometry questions, and more. This is part two of three of the national exam. Also available is a local...
9th - 12th Science