You Will Need:
A bucket or bag for holding collections of stones, large paper, markers, time to go for a walk
While walking with your child, encourage him to find the smoothest (smallest, largest, whitest, wettest, most speckled, heart-shaped, etc.) stone he can find. When you get home, make a chart with your child that shows what you found. Make labels that describe each rock: rough, mossy, cold, etc. Let your child copy what you have written. Look in encyclopedias or on the internet to see if you can find the scientific name of the types of rocks you found.
This is a fun activity to do at a beach or near a creek, but be sure to give your child boundaries and tell him to stay in your sight at all times.