This is our last post in the summer science camp series, but that doesn’t mean the fun has to be over!
Growing sugar crystals are such a pretty science experiment! We also poured the water out of the jars and observed the crystals that grew inside the jars too! We pulled out the sticks and used a magnifying glass to observe the sugar crystals that were formed on the sticks. We actually ended up leaving ours for, ahem, 20 days because we forgot to take them out before we went on vacation! We were just growing ours to observe and not to eat so crystals growing along the sides and top of the jar worked out perfectly.Īfter about 10 days the crystals are fully formed and you can pull the sticks out. If you are making rock candy to eat you will want to keep changing out the sugar water to dissuade crystals from growing on the side and to keep the bugs out! Have the kids observe what is going on inside the jar and on the stick.Īfter a few days you can see crystals forming on the stick and on the sides of the jar. Hang the stick in the sugar solution with the clothespin and set the jars somewhere they won’t be disturbed.
Be careful though, if your water hasn’t cooled yet the warmth will dissolve it. This will help the crystals form on your stick. Wet your sticks with some of the sugar water and then roll them in more sugar. After the sugar has completely dissolved take it off the heat and let cool. Add the color while it’s boiling if you want your candy to be colored. We used the amounts above in each of our jars so you may need to double, triple, etc depending on how many you are doing.īoil the water and slowly add the sugar until it all dissolves, this takes awhile.
A science experiment that ends in candy is sure to motivate kids! You can show your kids how to make rock candy and learn about crystals at the same time.
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