Bandai STEM Ambassador Family Life STEM activity

Learning about geodes with National Geographic

Learning about geodes with National Geographic

Last month we told you about the new kits from National Geographic which are great for exploring STEM subjects at home. We’ve already tried The Shark Tooth Dig Kit and the Gemstone Dig Kit. They were fun for my children to crack open and discover what treasure was hidden inside.

National Geographic Break Open 2 Geodes kit

A few weeks ago we received the National Geographic Break Open 2 Geodes kit. To be honest I hadn’t heard of geodes before but geodes are naturally forming volcanic rocks that contain amazing crystal formations inside. Crack them open and discover beautiful minerals!

The kit contained 2 premium quality geodes, a pair of safety goggles, a learning guide, magnifying glass and display stand. My 9 year old already has a collection of semi-precious stones so he was very excited to see this kit. Fortunately it contained two samples so both of my children could get hands on with geodes.

opening geodes

The information booklet said there were two ways to open the geodes so we tried the chisel and hammer method. This broke open the geode and exposed all the crystals inside.

opening geodes

The second was a lot more difficult to open. The chisel and hammer seemed to have no effect on it at all! Fortunately my husband has an angle grinder so he used that to slice it in half. Then he polished it with his Dremel so we could see what was inside. The children washed all their samples to see how the crystals sparkled.

opening geodes at home

I thought this kit was a fun way to learn about geodes. The information booklet was packed with facts which my 9 year old enjoyed. The protective goggles were useful but the magnifying glass was quite small and I thought there should be more than one display stand included. I also liked the fact that all the packaging was recyclable.

opening geodes at home

The STEM educational kits from Bandai are fun and budding scientists will love the authentic appeal of The National Geographic range of experiment-based kits. The range of National Geographic™ Kits includes Crystal Growing Kits, Dino Dig Kit, Bug Dig Kit, the Shark Dig Kit, Gemstone Dig Kit, Geodes, Build Your Own Volcano and Ultimate Play Sand. There’s also an assortment of mini dig kits including Treasure, Gemstone, Dino Poop, Shark Tooth and Fool’s Gold that are a perfect introduction to the series.

Suitable for ages 8+, National Geographic™ Kits (RRP: £9.99) and National Geographic™ Mini Kits (RRP: £4.99) are available from all good toy shops. Visit for further information.


  • Reply
    April 25, 2019 at 8:18 pm

    Oooh, these look great and are very reasonably priced too!

  • Reply
    rhian westbury
    April 25, 2019 at 8:21 pm

    I love anything with gemstones and would have definitely loved this as a kid. It’s a really cool way to promote science and technology subjects x

  • Reply
    Stevie - A Cornish Mum
    May 2, 2019 at 9:13 pm

    I like the look of these, I’m homeschooling my teenager and I keep looking for ideas on how to add some more practical fun activities into the day, so I’ll check these kits out.

    Stevie x

  • Reply
    Experimenting with fun STEM kits at home -
    June 9, 2019 at 9:31 pm

    […] National Geographic Break Open 2 Geodes kit […]

  • Reply
    Build Your Own Volcano {STEM at home} -
    June 30, 2019 at 7:35 pm

    […] the equipment to make a volcano there were also two rocks – a pumice stone and a geode. She knew a little about geodes from one of you previous STEM kits. She added the pumice stone to water to see what happened and […]

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