The Science Centre has a two story exhibit hall with the exhibits grouped in themes ranging from Energy And Motion to Astronomy. Spread over two-stories it has over 100 interactive exhibits for the kids to get some hands on fascination.
On the same site, The BlueScope Steel Planetarium is the major public planetarium in New South Wales. They offer a range of varying shows for the public, which are always completely visually immersive, fun and educational, as well as being suitable for anyone who can sit still for 45 minutes.
Used on their Discovery evenings, the Observatory is full of exhibits for the daytime too! Explore the cosmos with the sky survey machine, hear the latest news, look at the finest astro photos and even touch a plasma ball! There is also a display showing the real time image of the Sun and its sunspots.
Plus make sure you catch at least one of Entertaining Science Shows in the Illawarra Coal Science Theatre explore the more strikingly interactive fields of science, whether it be inflating gigantic bubbles, freezing objects or just blowing things up! Generally the morning show is particular suited for the youngest children.