I came across a nice interactive step-by-step guide introducing genetics for younger kids on curriki.org – an open learning resource for teachers, students and parents. With click and drag options and multiple choice answers, kids learn about genes and how they are passed from parent to offspring.
The slideshow takes you through an introduction to Gregor Mendel, the father of modern genetics, and how he worked with garden peas to determine how genes control heredity. It then takes you onto learning about dominant and recessive genes, learning how to draw a punnett square and learning to determine the genotype and phenotype percentages of various crosses.
The program is a little ‘buggy’ in places, but if you look beyond some of the programming issues, it’s a well-presented first introduction to genetics.