Reflection: Rigor Decomposing Hydrogen Peroxide Demonstration (Elephant Toothpaste) - Section 4: Post-Demonstration


An incredible amount of learning takes place when the students are tasked with drawing what they have observed. I have found that students are often intimidated about writing what they have learned (believing they are not good writers), but kids are often excited about drawing pictures. I let them know from the beginning that stick figures are fantastic and that I never grade on artistic talent (removes fear).

Don't discount this type of learning as juvenile. The kids love it and they have to really understand scientific principles in order to reduce the ideas down into a simple drawing. I make it clear that their drawings must have titles, clear labels, include color, and descriptors. Its really fun to see what they can do - I highly encourage this sort of assessment.

  Scientific Drawing
  Rigor: Scientific Drawing
Loading resource...

Decomposing Hydrogen Peroxide Demonstration (Elephant Toothpaste)

Unit 5: Chemical Reactions
Lesson 2 of 11

Objective: Students will be able to compare reaction rates between different concentrations of hydrogen peroxide as it decomposes into water and oxygen.

Big Idea: Decomposing hydrogen peroxide provides a show as it forms a column of soap foam known as elephant's toothpaste.

  Print Lesson
9 teachers like this lesson
  115 minutes
elephant toothpaste demo
Similar Lessons
Density of Gases
8th Grade Science » Heat Transfer and Interactions of Matter
Big Idea: This investigation uses a simple method that allows for capturing the gas released from a chemical reaction to help students determine the density of the released gas.
Brookline, MA
Environment: Urban
Ryan Keser
Decomposing Sucrose
7th Grade Science » Chemistry
Big Idea: Sugar is carbon and water?
Hope, IN
Environment: Rural
Deborah Gaff
Who Doesn't Love Bacon?
6th Grade Science » Chemistry and Cooking
Big Idea: Why does bacon smell so delicious when cooked? It's all about diffusion! Students will learn the science behind this irresistible breakfast treat!
Scottsdale, AZ
Environment: Suburban
Melodie Brewer
Something went wrong. See details for more info
Nothing to upload