Colorful Concoctions allows students to practice observational skills and note the difference between observation and inference. It also provides the student with the opportunity to design and perform simple inquiry investigations to answer a question posed by the instructor. By combining specific amounts of sodium bicarbonate, calcium chloride, and phenol red in a closed zip lock bag system, the learning experience focuses the student on the following concepts: physical properties of substances, evidence of chemical change, exothermic versus endothermic reactions, reactants, and products. Students work in groups of four.
This pack includes:
- Zip lock bags, Medicine Measuring Cups, Measuring Spoons, Toothpicks, Magnifying lenses, Phenol Red, Sodium Bicarbonate, Calcium Chloride.
- Teacher Guide and student handouts
Based on activity from Teaching Engineering Made Easy.