Lesson 20

Krazee Krunch Lab

Evidence of chemical change is easy to observe in this fun, edible lab.

Peanut Brittle Lab

More evidence of chemical change.  And, edible results, too!

Formation of a Precipitate Lab

Students will witness evidence of a chemical change with the formation of a precipitate in this lab.

pH “Phun” Lab

Color changes are readily evident in this lab where pH indicators made from red cabbage juice or grape juice are utilized.

Baking soda and Vinegar Gas Collection Lab

Multiple opportunities for students to build a suitable gas collecting apparatus in this very exciting lab.

Endothermic and exothermic reactions

Taking in and giving off of heat energy are demonstrated in these reaction labs.