DISCOVERY EXPLORE YOUR WORLD: INSIDE ENERGY MACHINES [IP] Ledger Book At which point in time

At which point in time did they diverge

easy-to-follow lessons designed for progressive learning

[U04-03-13-04-25]

Fluttering through their childhood fantasies

Cartoon logo Lunch Box

DISCOVERY EXPLORE YOUR WORLD: INSIDE ENERGY MACHINES [IP] Ledger Book At which point in timeTake a detailed look at how machines operate and how nature works with this fantastic series. Highly detailed, realistic artwork is presented with cutaways and exploded views to help children understand each idea. Clear text accompanies each topic, along with annotations and snippets of extra information. Photographs are used to place subjects in context and more difficult concepts are explained through the use of hand drawn color diagrams.