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The solution will be supersaturated when salt crystals begin to collect on the bottom of the pan.
Two options for growing salt crystals:
Soak a piece of cardboard in the solution until it is saturated and sinks to the bottom of the pan. The cardboard will act as a template or base for crystal growth. Put the pan in a sunny location. Crystals will form as the water evaporates.
Simply place the pan of solution in a warm location, and allow crystals to grow without a template. Both methods work. The salt crystal will grow over several days.
Try several pans, and study how the growth of crystals varies between them.
Every parent must use their own judgment in choosing which activities are
safe for their own children. While Science Kids at Home makes every
effort to provide activity ideas that are safe and fun for children it is
your responsibility to choose the activities that are safe in your own home.
Science Kids at Home has checked the external web links on this page that we created. We believe these links provide
interesting information that is appropriate for kids. However,
the internet is a constantly changing place and these links may not work or the external web site may have changed.
We also have no control over the "Ads by Google" links, but these should be related to kids science and crafts.
You are responsible for supervising your own children. If you ever
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