See the world in close-up with this illuminated Microscope. View the prepared slides magnified up 450 times! Booklet explains how you can prepare your own slides, just like in a laboratory. Perfect for the young scientist. Brainstorm Toys is a range of fun, educational and interactive STEM toys that bring together a host of fascinating items. STEM toys incorporate science, technology, engineering, and maths and encourage children to explore and develop a passion for these subjects. The aim of Brainstorm Toys branded products is to entertain children but also to inspire them to learn more about their environment.