Determining the Size and Purity of a Molecule Sample
Students conduct a lab that compares the weights of two different molecules. They determine molecular mass according to molecular formula, count the number of substances present in a sample and write a lab paper about the experiment.
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What's So Special about Bottled Drinking Water?
Is artesian water designed to be better, or is it just from wells similar to those in the city of Artesium? This experiment looks at many different types of bottled waters, including artesian. Using a soap mixture, scholars test to see...
9th - 12th Science CCSS: Adaptable
Albert Einstein: The Size and Existence of Atoms
How do you prove the existence of something you can't see? For Albert Einstein, a liberal application of math usually did the trick! Physics scholars discover the relationship between atomic size and the motion of larger particles they...
1 min 9th - 12th Science
Designer Genes: One Size Fits All?
In this STEM group of 10 activities, lesson two focuses on the question, "Just because we can, should we?" when considering genetically engineered food. Classes hear a scenario and, as young scientists and geneticists, must determine if...
8th - 10th Science CCSS: Adaptable
New Review Aspirin—The Wonder of Medicine
What do aspirin and the willow tree have in common? Scholars of chemical synthesis engage in a fascinating reaction to make their own aspirin samples. The lab uses thin layer chromatography analysis, includes stoichiometric calculations,...
9th - Higher Ed Science CCSS: Adaptable