We broke open geodes with a hammer and marveled at the beauty inside.
O was actually a little disappointed after she opened the geodes. She thought they were going to have jewelry inside that she could put in her jewelry box :)
Since our book discussed pyramids, we decided to make a pyramid out of family reunion cups (we reuse these cups every year at our family reunion).
O also wanted to make a Sphinx, but I couldn't come up with a way to do that. Maybe we'll try to make a sand castle Sphinx on the beach tomorrow. In addition to these activities, O sorted her rock collection into an egg carton, we learned the sign for "rock," and we learned the Spanish word for "rock."