Chalk board on a roll , each 21938 • Introduces key topics in

• Introduces key topics in the science and technology curriculum such as simple mechanisms and forces

cams and linkages

The ink is easy to erase and can be left uncapped for a few days without drying out

Each story is told through a book which is supplemented with five activity cards to encourage further exploration of these activities

Electronic speed pre-selection and control using setting wheel and trigger switch with forward/reverse rotation

Chalk board on a roll , each 21938 • Introduces key topics inThese multi purpose vinyl chalkboards offer an easy to cut, stick and peel permanent semi permanent adhesion to virtually any surface. Reusable vinyl material, with a peel off backing, can be used on glass, plastic, wood, painted and unpainted surfaces, carpet, fabric, even cardboard and polystyrene. In fact, anything that has an even surface indoor and outdoors! Easy to cut to size or shape, for creating animals, cars, boats, trees, numbers, letters,