Monthly Archives

July 2014

AnimalsBiology

Fingerprints

A fun way to teach kids about their skin is through an activity on fingerprints. The skin has two layers: the dermis and the epidermis. The epidermis is the layer of dead cells on the outside of the body that waterproofs and protects the living tissues underneath. The dermis is the living skin layer that contains blood vessels, sensory receptors, and the dividing cells that create the epidermal layer. The upper part of the dermis…
Cheryl Taylor
July 30, 2014
ChemistryInteractions of Matter

Invisible Ink as a Chemical Reaction

Kids love spy gadgets and mystery! Use homemade invisible ink to write secret notes, then teach your child the science behind the process used to reveal the hidden messages. There are many ways to make invisible ink. To use one of the safest methods, just use a Q-tip to write or draw on white paper with lemon juice. Actually, any fruit juice that contains citric acid will work, but lemon juice tends to dry the…
Cheryl Taylor
July 14, 2014