Simple Machines

by Kelly Gaffney

Published 1 January 2017
Ramps, screws, wheels, pulleys, wedges and levers are all simple machines. Learn about what these machines are and what makes them work. Also find out how to spot machines in action all around you!

Mammals

by Kelly Gaffney

Published 1 January 2017
Over four thousand different types of mammals exist in the world. Many favourite pets and farm animals are mammals, but what makes them alike? Learn about the mammal classification including mammals' common traits, where they live, and which ones can fly.

The Sounds Around Us

by Kelly Gaffney

Published 1 January 2017
Stop for a moment and listen. What can you hear? Sounds can be used to communicate with others, they can warn of danger, and they can even change the way we feel. Sounds help us understand the world around us. Learn all about what sounds can do, how sounds are made, and how we can hear them.