Space STEM: Oreo Moons

Space STEM: Oreo Moons


oreo moons

This activity is a great way for children to learn about the different phases of the moon. We’ve tried it out and have put together a blog of how we got on. We hope it’s useful! Click here for the Oreo Moons activity sheet.

Begin with an introduction about the phases of the moon. Your class may already be familiar with this or perhaps you’ve asked them to observe the moon in the night sky over recent days. Another good place to start is by looking at a moon phases app. We suggest a free one here. This allows you to find out what the moon is currently doing in the night sky in your location and to explore how it changes over time.

By the end of this activity, children should understand that:

  • As the moon orbits the Earth, the phases change
  • A complete moon phase cycle takes 29.5 days
  • Moon cycle have 8 phases; new moon, waxing crescent, first quarter, waxing gibbous, full moon, waning gibbous, third quarter, waning crescent.

First we distributed the resources. There are lots of differing answers online about how many oreos each child will need. We found that we could complete all eight cycles using just four oreos. This prevented wastage as both sides of the oreo were used.

oreo moon resources
Oreo moon resources.

Then it was time to let the children create the various moon phases. We quickly learnt that splitting an oreo neatly without breaking it is a bit of an art! We found it helped to twist as you lift the two sides apart. We then used a plastic knife to shape the cream into the correct moon phase. The paper towels quickly came in handy!

Here are our pictures of the process.

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