(a species of owlet moth (Noctuid)) Some caterpillars, after they emerge from their egg, can increase their weight by 25,000 times.

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Sensational Butterflies toys and games

Grow your own crystals

Crystal Growing Kits Tmb

Grow your own crystals with this fantastic science kit.

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Crystal growing kit - diamond white

£ 6.00

Buy

Crystal growing kit - sapphire blue

£ 6.00

Buy

Crystal growing kit - rose pink

£ 6.00

Buy

Crystal growing kit - amethyst purple

£ 6.00

Buy

The kit includes the base rock which you use to grow crystals on, the crystal formula, a growing tray with lid, magnifying glass, spatula, and full instructions.

The crystal kits are available in 4 colours: sapphire blue, rose pink, amethyst purple and diamond white. Ages 10+.

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With your help we can continue to carry out pioneering research, care for our internationally important collections and inspire people to take better care of the natural world.

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