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Explore the scientific method, acids and bases, and chemical and physical changes as your students complete challenges to become Certified COSI Chemists. Get messy with non-Newtonian substances, endothermic and exothermic reactions, and other chemistry hands-on activities!

NOTE: Students should be reminded never to eat or drink their chemistry experiments -- nor should they eat or drink near them – even when experimenting with food.

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Hands-on activities:

A Closer Look: Students use microscopes to identify powders based on their external structures.

Chemical or Physical?: Students compare and identify a variety of chemical changes and physical changes.

It’s a Secret: Students write secret messages in two different ways: one using phenolphthalein and washing soda, the other using ultraviolet ink and a black light.

Solid-Liquid-Gas: Students mix a solid and a liquid to produce a gas. The reaction yields results they can see, feel and hear.

pH: With a variety of diluted household chemicals and universal Indicator solution, students explore the full range of pH: acid to neutral to base.

Light the Night: Students experience a chemical reaction that produces light without heat.

Sink or Float: Students will investigate density and see how density determines if something will float or sink.

Super Slime: Students use Polyvinyl Alcohol, Sodium Tetraborate, and food coloring to create a non-Newtonian substance to explore and take home.

Way Cool: Students mix chemicals with water to cause exothermic (heat-producing) and endothermic (heat-absorbing) reactions they can feel.

Academic Standards:

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Full-day experience: $1090
Includes whole-school assembly and smaller hands-on sessions throughout the program day.
Please note:

  • There is a $2 processing fee for all program reservations.
  • A mileage fee will be applied to programs outside of Ohio’s borders.
  • School must provide volunteers for setup, facilitation of activities, and tear down.

Assembly-only option: $490
Includes whole-school assembly without the hands-on sessions afterwards.
Additional assemblies available for $175.
Interested in this option? Email This email address is being protected from spambots. You need JavaScript enabled to view it.

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