Chemical Tests (3rd grade)

This unit introduces third-graders to the science of chemistry by challenging them to explore and determine the identity of five common household chemicals: sugar, alum, talc, baking soda, and cornstarch. Students begin by focusing on the physical properties of color, form, and texture. Next, they explore chemical properties by observing how the five powders interact with water, vinegar, iodine, and red cabbage juice. These tests enable them to explore phenomena such as crystallization and to observe the processes of evaporation and filtration.

Finally, students apply their skills and their knowledge of the five chemicals to identify a variety of "mystery" mixtures. As a result of conducting these investigations, students develop scientific skills such as observing and recording results, forming conclusions on the basis of experience, communicating results, and applying their knowledge to solve problems.

Movie clip on Physical vs Chemical change for the Chemical Tests unit (Media, Movies)

Additional Photos

Parent Letter - English

Parent Letter - Spanish

Chemical Tests Storyline (pdf)

Literacy / Book Lists

Teacher Recommended Resources

Recommended Websites

Unit Certificate
We wish to acknowledge your student's accomplishment in completing the unit through the use of this unit completion certificate, and hope that he or she enjoyed learning about science through The Einstein Project's hands-on science.

Sponsorship Opportunity

Sponsor the Chemical Tests unit! Please contact Lori Kaufman, development director, about this and other sponsorship opportunities. You can reach her at 920-884-8800 or lori@einsteinproject.org.

What are people saying about the Chemical Tests Einstein science unit?

"The students learned so much through this unit. This is the way science should always be taught in schools."
-- Diane Maxson, Grade 4 teacher at Edgewood Elementary, Oak Creek, Wisconsin

"I (and my students) love this Einstein! You do a great job with it! Thank you!"
--Chrissy Kiefert, Grade 3 teacher at Holy Family Elementary School, Green Bay, Wisconsin