Help him sort things into groups. Encourage him to try different criteria. Science encourages creativity. Let your young child experiment with all sorts of things. Magnets are exciting.
Water is fascinating.
Flashlights and balloons, magnifiers and straws all invite inquiry. Using Resources Use the resources available in your town or city. A nearby nature center or science museum will surely be an enriching experience for your child. A park or a beach or a backyard should offer enough riddles to last a lifetime. Your local library, of course, is an invaluable resource.