Featured Resource
Author
Priscilla
Subject
Chemical Changes
science cer 5th grade chemical changes. one box that shows claim, one box that shows evidence, and one box that shows reasoning
This resource discusses the laboratory investigation involving a reaction between baking soda and calcium chloride when mixed with phenol red. The students observed the formation of gas, indicated by the inflation of the plastic bag, and a temperature increase from 25°C to 29°C. Additionally, this chemical reaction caused a color change in the phenol red solution, transitioning from red to orange to yellow. This investigation serves as a practical example of chemical reactions and their observable effects, including gas production, temperature change, and color changes, which can be discussed in terms of claims, evidence, and reasoning in scientific inquiry.