Our venture into history coupled activities for both younger and older students in a unit on chemical and physical changes. The younger children pursued an instructional unit on "Mystery Powders." We selected a several scientists appropriate to the unit and told stories about the scientists during the activities.Level: Grades K-6
The older students conducted research to learn about these and other scientists (both personal and professional items of interest). We had them look especially for how they could actually become that scientist through role-playing. They also looked for a lab activity they could do with younger students to illustrate that scientist's work. They made a "big book" of their scientists. Finally, the older children visited the younger students, set up learning stations for them, conducted historical scientific activities with them, and shared their big book -- while playing the role of the scientist throughout the activity.Possible extension activities include:
- for the younger students: thank-you letters,a classroom anthology of historical scientists, books about the experience
- for the older students: biographical research reports, multimedia productions (videos of their role-playing?!), a classroom anthology of historical scientists
This curriculum module was developed as part of a project sponsored by Sci-Math-MN and The Bakken Museum and Library. Click to see a directory of other modules using history and philosophy of science.
Remember that a chemical reaction occurs when we see a temperature change, a solid coming out of a solution, a color change, or gas production. In this case look for gas production in both experiments and a temperature change in the yeast and peroxide combination.
You have two experiments to do with your students:
A chemical reaction has occurred when we see temperature change, formation of a precipitate, color change, or gas production. In this case look for color change.
(These were made by taking a regular sized piece of construction paper, dividing it into four columns and labeling the four columns (going across the paper the long way) as: Atoms of element A, Atoms of element B, Mixture of atoms of elements A and B, and Compound of molecules made from uniting atoms of elements A and B.)