This book contains 20 great science experiments – you can freeze a glowing ice ball, bend light with jelly, build a flashing metal detector, measure light with marshmallows and even make a lava lamp.

Blast Lab makes light work of science as you power up the Blast Lab’s LEDs and perform extraordinary experiments with light and electricity. You can learn how to bounce light about with your own kaleidoscope, explore circuits by building a torch and brighten up your home with glowing magnets.

In the pack:  1 blue LED, 1 red LED, 1 green LED 1 yellow LED and 2 x 20 cm wires. You should be able to find the other components you need around your home. Batteries not included

• For ages 8 years and above

This book’s publisher, Dorling Kindersley, is trying to be cleaner and greener: they recycle waste and switch things off, use paper from responsibly managed forests wherever possible, asks their printers to actively reduce water and energy consumption, and check their suppliers working conditions - they never use child labour.