Search Results
Showing results 1 to 9 of 9
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-490.jpg?itok=c9Em4Unp)
Invisible Ink Demonstration
Source Institutions
In this chemistry demonstration, learners will discover that phenolphthalein is a chemical that displays different colors depending on the acidity or basicity of the environment.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-481.gif?itok=FGMGN-a6)
Shake It Up!
Source Institutions
Learners observe a sealed container holding a clear colorless liquid. They shake the container and the fluid turns blue. When allowed to sit for a few moments, the fluid turns colorless again.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-499.jpg?itok=UKN2xXz-)
Red, White and Blue I Demonstration
Source Institutions
In this chemistry demonstration, learners observe a chemical reaction that produces a colorful effect.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-581.gif?itok=BUO5-R0j)
Fuel for Living Things
Source Institutions
In this activity, learners observe what happens when yeast cells are provided with a source of food (sugar). Red cabbage "juice" will serve as an indicator for the presence of carbon dioxide.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-831.jpg?itok=rSLuIoOY)
Concentrate!
Source Institutions
In this investigation of reaction kinetics, learners alter the amount of iodate solution mixed with the same amount of starch solution.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-387.png?itok=9A9u3cJh)
Reaction: Yes or No?
Source Institutions
In this activity, learners mix ingredients in a plastic bag, and then identify three characteristics of a chemical reaction: production of heat, color change, and production of a gas.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-010.gif?itok=QeOVLkZQ)
Magic Inks
Source Institutions
Learners write their initials by applying different clear "magic ink" solutions to separate pieces of paper and then "develop" the inks with other clear solutions.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-000.gif?itok=QpDpG7O6)
Starch Breakdown
Source Institutions
Learners use Benedict’s solution and heat to test for the presence of simple sugars in glucose, sucrose, starch, and starch combined with amylase.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-489.jpg?itok=M3P9BX8D)
Witches' Potion Demonstration
Source Institutions
In this chemistry demonstration, learners will discover that phenolphthalein is an acid/base indicator. One learner will read a poem about four witches making a potion.