Ever wondered how a ship as big as the Titanic could float? Or how water striders are able to walk on water? Water is all around us, and the COSI Connects Water Kit explores all sorts of water-related science activities! Recommended grades: K-8.

$30 ($25 for COSI Members) + Sales Tax

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Each Kit comes with a colorful and engaging activity book for the learner complete with activity instructions, career connections, space to record their findings, activity pages, and more.
Below are additional materials that can be found in the Kit to accompany each activity. Some supplies may be used for multiple activities.

Float Your Boat
Objects of various weights, sizes, and shapes:
 Tin Foil
 Tissue paper

Nature’s Zoom Lens
 Sandwich bag
 Paper slip with small writing
 Microscope slide

Surface Tension
 Tissue paper

Chromatography Flowers
 Coffee Filters
 Pipe cleaners

School of Fish
 Craft Foam
 Cotton Swab
 Dish Soap (in a deli cup)

Each COSI Connects Water Kit is filled with engaging, hands-on STEM activities. COSI’s education experts have created these activities to encourage inquiry-driven learning and reinforce Ohio's Learning standards.

Float Your Boat - Which objects float in water, and which objects sink? Try experimenting with different objects to see which ones will float. Kit includes activity instructions and objects of various weights, sizes, and shapes, including a paperclip, pen, tin foil, tissue paper, and a penny.

Nature’s Zoom Lens - Can you use water to magnify an image? Try it out! Kit includes activity instructions, zipping plastic bag, paper slip with tiny writing, microscope slide, and pipette.

Surface Tension - How many drops of water fit on a penny before it will spill over? 10? 25? More? Perform your own surface tension test to find out. Can you use what you learned about surface tension to make a paperclip float? Kit includes activity instructions, penny, paperclip, tissue paper, and pipette.

Chromatography Flowers - Scientists use a process called chromatography to learn about different substances present in a mixture. You can do chromatography at home with water to explore different pigments hidden inside markers! Kit includes activity instructions, coffee filters, disposable cup, dark colored markers, and pipe cleaners.

School of Fish - Learn the difference between a school and a shoal of fish. Then, make your own model shoal of fish that “swims” with the help of surface tension! Kit includes activity instructions, craft foam, scissors, cotton swab, and dish soap.

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With the COSI Connects Space Kit, you will become an astronaut, take a journey to the moon, and travel all the way back to Earth safely! Challenge yourself to build a rocket, design a moon base, and engineer the perfect parachute!

$30 ($25 for COSI Members) + Sales Tax


How many native Ohio birds can you find? Can you create camouflage to help an animal hide from predators? Use the COSI Connects Nature Kit as your guide while you explore and learn about the science behind plants, animals, and ecosystems - including those living in your own backyard!

$30 ($25 for COSI Members) + Sales Tax


With this box, you will become a paleontologist! A paleontologist is someone who studies fossils to learn about life on Earth a really, really long time ago. Make your own model fossils, excavate one of them, and even document a REAL fossil!

$30 ($25 for COSI Members) + Sales Tax


The first step to being healthy is understanding your body. Your body is made up of many interconnected systems that all work together to help you do ALL of the things you do every day. With this kit, you will learn a little bit more about a few of those systems and how you can make healthy choices to take care of your body.

$30 ($25 for COSI Members) + Sales Tax

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