Using pH Probes
Students investigate the pH of various household liquids. They write a hypothesis about the pH level for each liquid and then test the pH using pH paper. They then revise their hypotheses and test pH using a pH probe.
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Using Environmental Models to Determine the Effect of Acid Rain on an Ecosystem
Demonstrate to your middle school science learners how chalk breaks down in a weak acid. Discuss what affects acidic rain might have on ecosystems. Lab groups then choose one of two questions: "How does acid precipitation affect an...
7th - 8th Science
Energy for Life (Energy from Food)
Energy comes in many forms, but how do living things get the energy they need to survive and thrive? In a simple, controlled experiment with yeast, water, and sugar, groups make observations about how yeast reacts with water alone, then...
3rd - 12th Science CCSS: Adaptable
New Review Transforming Water Into Acid ... And Back
Greenhouse gases affect marine wildlife in life-threatening ways. Through experimentation, your classes explore the acidification of water from the main greenhouse gas carbon dioxide. As they introduce carbon dioxide to water, a pH...
5th - 11th Science
The Path of Least Resistance
Your class won't be able to resist this activity on the path of least resistance, or rather, on conductors and insulators. Using two types of modeling dough, one that conducts and one that insulates, young electrical engineers construct...
6th - 12th Science CCSS: Designed
Acids, Bases, and Indicators—Colorful Chemistry
Lead the class in a colorful exploration of acids and bases as they learn to differentiate between the two. They identify common items considered acidic and basic, then explore their strengths and weaknesses. They titer solutions and...
7th - 12th Science
New Review Composting: Why Bother?
The first STEM lesson in a group of 10 explores composting. After discussing how to make a better tomorrow, classes are challenged to track garbage in their communities, visit a local waste management facility, and conduct a survey about...
8th - 10th Science CCSS: Adaptable