Science Experiments
Crystal Garden: Grow Your Own Salt Crystals
Kids will create a supersaturated salt solution and pour it over cardboard shapes. They will then observe the process of evaporation and crystallization as intricate salt structures grow overnight.
Grab 1–2 things 30 min Ages 4–10 years 1–4 players Indoor
Scientific observationFollowing multi-step instructionsPatienceFine motor skills
Unlock this activity
Sign in to use one of your 3 free weekly unlocks.
Learning benefits
- 💡 This activity provides a tangible, visual lesson on the scientific concepts of solutions, saturation, and evaporation. Executing the specific measurements and waiting for the outcome cultivates patience and reinforces the importance of following procedural steps.
Safety notes
- ⚠️ An adult must always handle pouring the hot water to prevent scalding burns. Although the materials are non-toxic, do not let children drink the solution, and ensure everyone washes their hands thoroughly after handling the salt mixture to avoid eye irritation.
Cleanup
- 🧹 Pour any remaining liquid down the drain, followed by running tap water to dissolve any salt residue in your pipes. The finished crystal garden can be kept for a few days as a decoration but should be discarded in the trash, as the high salt content is not suitable for composting.