All Mixed Up!
Concept: Visitors separate a mixture of wood shavings, salt, and stones. They add the mixture to water, then use the different properties of these substances to separate them.Download Take-Home Activity Now
Concepts: Using a light connected to batteries, visitors test different solutions for conductivity. They test solutions of: water, salt, sugar, and hydrochloric acid. Only the salt and hydrochloric acid solutions conduct electricity.Download Take-Home Activity Now
Hot and Cold
Concepts: Visitors add urea and calcium chloride to water in separate flasks. They feel the flasks to discover that one has gotten colder, while the other has gotten warmer.Download Take-Home Activity Now
It's a Gas!
Concepts: Visitors assemble two flasks and a beaker, connecting them with stoppers and tubing. They combine baking soda, water, and citric acid in a flask and then stopper the flask. Gas from a chemical reaction flows into a second flask, displacing colored water into the beaker.Download Take-Home Activity Now
Concepts: Visitors mix corn starch and water to create a fluid with interesting properties.Download Take-Home Activity Now