Showing results 1 to 13 of 13
Recrystallization TestAdd to list Details
In this activity, learners recrystallize substances from solutions and make observations about the resulting crystals. This test can help further identify the unknown.
Watching Crystals Grow
Learners will compare the growth rate and appearance of crystals forming on small rocks to those growing on miscellaneous objects. Learners will also investigate how temperature (warm vs.
Supercooled Water DropsAdd to list Details
In this activity, learners touch supercooled water drops with an ice crystal and trigger the water drops to freeze instantly.
In this activity, learners will "paint" their own crystal artwork by creating a picture with a super saturated salt solution.
We all Scream for Ice Cream
In this activity, learners observe how salinity affects the freezing point of water by making and enjoying ice cream.
Silver CrystalsAdd to list Details
This is written as a static display, but can easily become a hands-on experiment for learners.
Crystal Stencil StarsAdd to list Details
In this activity on page 6 of the PDF, learners dissolve Epsom salt in water and discover that the resulting solution can be used to create a work of art.
Sodium Acetate Hand WarmersAdd to list Details
In this activity, sodium acetate hand warmers are used to introduce learners to supersaturated solutions, crystallization, and exothermic reactions.
Crystal GardenAdd to list Details
Visitors observe a tray holding a crystal-covered brick. The crystals were created by evaporation of a solution containing liquid bluing, ammonia, and salt.
Growing Rock Candy
In this activity, learners make their own rock candy. Crystals will grow from a piece of string hanging in a cup of sugar water. The edible crystals may take up to a week to form.
Crystals: Grow Your Own GardenAdd to list Details
In this simple activity (on page 2 of the PDF), learners make a crystal garden using salt, water, and a brick.
A Closer Look at CrystalsAdd to list Details
In this activity, learners compare different types of salt crystals under a magnifying glass.
Making Sodium Acetate: Hot Ice
In this chemistry activity which should only be done under adult supervision (page 10 of the PDF), learners will create an exothermic process by making Sodium Acetate.