O'Callaghan Jonathan

Meet STEM Junior, a little character with some big ideas and a bunch of super science buddies. Can you spot the difference between a reptile and an amphibian? What do you know about your vital body systems? Have you ever wondered how the un

Meet STEM Junior, a little character with some big ideas and a bunch of supersmart engineering friends. Have you ever wondered how a bridge stays up, or how your texts get from one end of town to the other, or how your raincoat keeps you dr