With butterflies, peacocks and other birds we will learn how they use colour without paint!
Dyes are, for the most part, pollutants. Wouldn't it be great to paint without paint and preserve our environment? How does nature do it?
Paints are often pollutants. Wouldn't it be great to paint without paint? How does nature do it?
Investigate with the children which animals are iridescent.
Where do we see iridescence in our everyday life?
Material:
Black cardboard
Cup of water
Clear varnish
Procedure:
Fill a bowl with water.
Add a few drops of varnish and spread it with a toothpick.
Dip strips of black cardboard in the water with varnish.
Remove and leave to dry.
Tilt the dry cardboard towards the sun and observe.