Indicator Sponge A Discrepant Event Demonstration

Students explore the use of acid and base pH indicators. The teacher saturates an indicator sponge with congo red solution. Afterwards, the sponge is placed in a blue base solution. Students observe that the blue sponge actually turns red. They discuss the explanations for the color change.

5th - 8th Science 10 Views 15 Downloads
Resource Details

1 more...
Resource Type
Lesson Plans
Instructional Strategy
Inquiry-Based Learning

What Members Say

Charmaine E.
Lesson Planet helped me as a teacher by providing lesson plans and worksheets on subjects for my students. Member since 2012.
Charmaine E., Teacher
Scranton, SC