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::: melted hot rocks

A few days ago we came across this Hot Rocks post by Marghanita through the Childhood 101 Playopedia link up.  It reminded us of the melted crayon drawings we did last year.

Being a long weekend here in Victoria, Donna is holidaying at Jamieson up in the high country of Victoria with her extended family, which includes her young nieces and nephew.

Yesterday while walking along the banks of the Jamieson river, the children collected up a basketful of beautiful river rocks.

Donna thought this would be a great opportunity to give the ‘Hot Rocks’ a try. After showing the children the video from the link they agreed.

The rocks were placed inside a small toaster oven with the temperature set to 150 oC, for about 10 minutes.

They were a little too warm to handle when they first came out of the oven but it only took a minute or two for them to cool down to a safe, manegable temperature.

Using wax crayons they decorated the rocks.

As the rocks were warm …

the crayons melted and glided over them with ease.

While the winter weather here is Victoria is amazingly beautiful, the air is still very fresh and crisp.

Because of this the children delighted in handling the warm rocks outside in the cool winter sunshine.

It wasn’t long before they came up with their own ideas for decorating the rocks.

These included drawing on cold rocks.

Shaving the crayons with a bread and butter knife …

as well as a pencil sharpener …

and chopping the crayons into chucks.

All the chunks and shaving went on top of the cold rocks to be melted in the oven.

They looked so beautiful!

These techniques worked brilliantly!

Once melted and cooled …

the wax was smooth and solid … really lovely to feel

Each one was so unique!

Once again the children showed us that they really do have the best ideas!



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13 Responses to “melted hot rocks”

  1. Anna says:

    I am constantly amazed and inspired by the things y’all come up with :o)

    ::: Awww thanks Anna but as we said, it really is the children who come up with these great ideas … We just have to be on the ball enough to pick up on them! 🙂 🙂

  2. mizzbeth says:

    I wonder if a microwave would work as well. Our classroom has one of those but not a toaster oven. Experimenting is the name of the game though isn’t it. Thanks for sharing.

    ::: Mizzbeth the thing with river rocks is that they hold a lot of moisture and heating them too high can cause them to explode. You would need to be very careful using a microwave. Perhaps hot water would be a better option. Just dry them first! 🙂 🙂

  3. jeanne says:

    gorgeous rock art! love all the photos of the process and the exploration by the kids!

    ::: Thanks Jeanne! 🙂 🙂

  4. Thanks for posting, can’t wait to try this next Fall when the weather gets chilly. What an amazing tactile experience!

    ::: Maria I’ve been wondering if these couldn’t be done with rocks warmed in the hot sun too. Certainly down by the river in the Aussie summer they can get very warm indeed. Perhaps you guys in the Northern hemisphere could give it a try?! 🙂 🙂

  5. Bianca says:

    These are fantastic…I’d been trying to think of an alternative to the warming tray as I do not have one and these are perfect. I love the nature factor too. 🙂 🙂 🙂

    ::: Oh it is definitely a great alternative OR extension to the warming tray idea Bianca … Enjoy! 🙂 🙂

  6. Deb says:

    These look fantastic! My girls have been wanting to draw on rocks but they’re too rough, this will give them that beautiful bright colour.

    ::: Have fun with it Deb and girls! 🙂 🙂

  7. […] Irresistible Ideas: Melted Hot Rocks […]

  8. […] Melted Hot Rocks by Irresistible Ideas for Play Based Learning […]

  9. Rosie Hanefeld says:

    You can put them in a crock pot on low for about 30 minutes.

    ::: That sounds like a great idea too Roise … Thanks for sharing it. :):)

  10. […] part of our summer “organized freedom,” Katya picked the colored rock project from our project bag.  She and I collected rocks from the front of the house and warmed them in […]

  11. […] So now there’s a great use for all those rocks at the in your handbag/pockets/toy box… Melted Hot Rocks! Simply heat in the oven, cool enough to touch and rub crayons over them for melty-fun. Click the […]

  12. Christine says:

    @Mizzbeth: Maybe a hair dryer rather than a microwave?

  13. […] Melted Crayon Rocks with crayon shavings (on Irresistible Ideas for Play Based Learning) […]