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Introducing COSI Connects Kits - On Sale Now!

Introducing COSI Connects Kits - On Sale Now!


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.

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:

2-PS1-1 Matter and Its Interactions

Plan and conduct an investigation to describe and classify different kinds of materials by their observable properties.

2-PS1-4 Matter and Its Interactions

Construct an argument with evidence that some changes caused by heating or cooling can be reversed and some cannot.

PS1.A: Structure and Properties of Matter

Different kinds of matter exist and many of them can be either solid or liquid, depending on temperature. Matter can be described and classified by its observable properties. (2-PS1-1)

5-PS1-3 Matter and Its Interactions

Make observations and measurements to identify materials based on their properties.

5-PS1-4 Matter and Its Interactions

Conduct an investigation to determine whether the mixing of two or more substances results in new substances.



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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