When my girls were younger, one of my favorite boredom killers/fun activities to do was conduct fun experiments. I wasn’t necessarily teaching the heavy duty science but, they did learn some cool concepts by doing these experiments with me. One of my favorite kits has to be the Be Amazing Lab-in-a-Bag Test Tube Wonders! It was relatively cheap and came with 15 possible experiments. The bag does say it is for ages 8 and up but from experience I can say it works best for kids between 5 – 8 years of age. After 8, these simple experiments aren’t going to be as fascinating.
This kit comes with polyacrylamide beads that turn into awesome crystals. The girls really enjoyed waking up the next day and seeing their tiny beads turn into huge crystals.
You can also make fake snow, a lava test tube, and play with the magic sand that stays dry no in water. My favorite thing about this set is that several, not all, of the experiments, can be saved to use again at a later time. The girls would bring out the kit anytime they had playdates. I highly recommend this set! You can buy it on Amazon.
They also have a kit that contains more activities. If my girls were still between 5-8, I would definitely try this out.
Another cool kit to try is the Scientific Explorer Mind Blowing Science kit. It is in between the two I mentioned above in that, you get 20 experiments similar to the ones you would find in Lab in a bag , the first kit I mentioned.