Skip to Main Content
It looks like you're using Internet Explorer 11 or older. This website works best with modern browsers such as the latest versions of Chrome, Firefox, Safari, and Edge. If you continue with this browser, you may see unexpected results.

SEPGuides: Science Education Partnership: Water Molecules

SEPGuides is the go-to place for all SEP kit protocols and activities, as well as the posting area for announcements and program updates. If something is missing or you have an idea to contribute, please e-mail us at

Water Model Kit


The Water Kit gives students hands-on activities for 1) observing the many different properties of water and 2) understanding these properties on a molecular level.

Overview: To foster understanding, students are engaged by observing different properties of water (cohesion, adhesion, capillary action). To explain these properties, students will build and evaluate the structure of water at the molecular level using the magnetic models from 3D Molecular Design. The fun of these water molecule models is that they are magnetic to reflect their partial positive and negative charges. The non-magnetic ethane model also helps to demonstrate polarity in non-polar molecules.

 The Water Molecule Models are available for purchase:



Water Olympics

The Water Olympics give students hands-on activities to closely observe different phenomena of water. Each event station exhibits different water properties such as cohesion, adhesion, density, and more. This introduction helps students gain a larger understanding of water before diving into the molecular forces the of water.



Water Molecule Models

The Water Molecule Models from 3D Molecular Design allow students to explore water on the molecular level. Each water molecule in the model kit has magnets that represent the partial positive and negative charges. A non-magnetic ethane model and strongly magnetic sodium chloride models help students explore interactions between water and other substances.




Water Kit Contents
  • 16 Water Molecule Cups
    • 12 water molecules
    • 1 sodium ion
    • 1 chlorine ion
    • 1 ethane molecule
  • 1 Teacher's Guide
  • 17 Water Model Booklets
  • 9 cups
  • 2 graduated cylinders (50 ml)
  • bag of plastic transfer pipets
  • microscope slides
  • Parafilm and scissors
  • 1 wet-easer marker
  • ~100 pennies
  • 50 ml colored water
  • 50 ml soap
  • coffee filters
  • 1 fork
  • 1 loupe
  • ruler
  • bottle of oil and water