Test your knowledge of metals.

How many gills does a shark have? Test your knowledge here.

How much do you know about baby whales? Test your knowledge here.

What do you know about lightning? Test your knowledge here.

Think you know the ocean? Test your knowledge in this Matter of Fact.

How well do you know your dinosaurs? Test your knowledge here.

How much do you really know about clouds? Test your knowledge here.

How do birds fly through turbulence? Test your knowledge.

How well do you know your own body? Take our Matter of Fact challenge and find out.

Test your knowledge of the Spinosaurus in this week’s edition of Matter of Fact.