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Ions of Solution
Students discover that ions in water can conduct electricity. They use size D batteries and wires to create a circuit in distilled water and then record the differences in bubbles produced with solutions containing vinegar, baking soda, or sugar.
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Using the Spectrophotometer to Analyze a Mixture
General chemistry classes practice spectroscopy. They grasp the relationships between wavelength, absorbance, and solution concentration. Additionally, they gain valuable practice using laboratory equipment such as burets and pipettes....
9th - 12th Science
New Review Forming a Precipitate
Can you mix two liquids to make a solid that is insoluble? Yes, you can, and pupils see this as the activity uses more than one combination of liquids to form a solid. Through two teacher demonstrations and a hands-on activity, scholars...
6th - 8th Science CCSS: Designed
Flame Test: Red, Green, Blue, Violet?
Let the true colors shine through. Pupils conduct a flame test to identify an unknown element. Class members calculate and prepare specific molarity solutions of three chemicals. Using their observations of the colors emitted, they...
10th - 12th Science CCSS: Designed