This chapter, first published as an article in Science and Children, reveals the successful strategies used by preschool teachers in Hartford, CT, that effectively supported young children’s physical science and engineering learning. Children naturally engineer things every day, from sand castles to block towers and paper bridges. They learn through trial and error what materials will work in their projects. It is the perfect opportunity to use children’s natural instincts to help them learn real scientific and engineering principles. Although the Next Generation Science Standards do not specifically outline preschool expectations, by following the seven strategies discussed in this article, teachers can give their preschoolers a head start in their future STEM adventures.