This salt and ice experiment is a perfect Halloween science activity for home or the classroom. Not only are these haunted hands fun to make, kids will learn how ice and salt react together making this a nice little science experiment for daycare or preschool.
A salt and ice experiment is always one of our favourite science activities here in my home daycare. You can see how we’ve done it before with our Ice Age Bin and our Dino Dig.
We talk about how nd watching how quickly the erosion process takes place is pretty amazing. I’m not sure if the science behind this activity means much to the preschoolers, but we do talk about how salt helps to melt ice and we make observations as we see the ice melting. However, it’s the actual digging that captivates the hooligans. The task of freeing a bunch of treasures frozen in a block of ice always is so captivating that they always stay at it until every last goody has been hacked, chopped or melted out of its icy tomb.
Last week I thought to turn this simple kids’ science experiment into a Halloween activity, using surgical gloves, food colouring and some Halloween craft items. It was a hit, and although the hands were quicker to melt than the solid blocks of ice we’ve used in the past, it still kept the girls entertained and learning for close to an hour.
For this Halloween salt and ice experiment, you’ll need Haunted Hands we used:
- surgical gloves (amazon affiliate link)
- twist ties
- craft items and hallowe’en dollar store items (beads, buttons, googly eyes, chopped up straws, craft foam pieces etc.)
- food colouring
Fill the gloves
To start, the hooligans dropped the items into the gloves and we worked them down into the fingertips.
Then I filled the gloves with water, and added a few drops of food colouring.
There was a lesson in colour mixing here. We didn’t have any orange food colouring, so we added a few drops of yellow and red to one glove to make it. I gave each glove a a twist and secured it tightly with a twist-tie.
Then I gave the hands a little shake to distribute the food colour evenly throughout the glove. To be safe, you might want to do this over the sink.
Freeze the gloves
Then we placed the gloves on a cookie sheet and popped the whole thing into the freezer.
The next day, we took our frozen hands out of the freezer, and removed the gloves.
To get the surgical gloves off the ice hand easily, I made several cuts in the glove, from the wrist as far down to the fingers as I could go, without putting too much pressure on the fingers.
Tools and instruments for melting ice with salt:
- coloured salt (several spoonfuls of salt mixed with a few drops of food colour)
- syringes and medicine droppers
- pate knives, small spoons
- wide paint brushes
- large shallow storage container
- bowl of water
We took the whole thing outside to our handy-dandy second-hand coffee table (the best 6 bucks I’ve ever spent), and the kids got to work:
The sprinkled and poured…
and they chopped and scraped and scrubbed…
They use the spoons and shakers to distribute salt all over the ice, and they used the syringes, droppers and scoops to transfer water from the bowl on to the icy hands.
What a fabulous learning activity!
More fall crafts and activities for preschoolers
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