Watch out!! Alum is no harmless substance, first you should read the instruction on the jar. The preparation for this craft can only be done by adults or children over 12 years under the supervision of an adult. Use gloves.
What do you need?
6 large half-shells
1000 grams Alum (drogisterij.nl)
glue
tools
gloves
spoon
brush
To grow your own beautiful crystals you must first prepare. Then all you need is patience ...
Let's start!
These scallop shells you can buy at the fish shop.
Squeeze strong, transparant glue into the shells.
Spread the glue with a brush.
Sprinkle Alum onto the glue and move the shell to spread the Alum.
Tap the excess off on a paper sheet and pour it back into the jar.
Put the shells aside overnight to let them dry. We continue next Thursday!