What is Letterbox Lab?

Letterbox Lab is the kids’ science kit reinvented to be more fun, more colourful, more convenient and more educational than ever before.

Developed by two passionate science fans who have dedicated a decade to engaging the public with science, our science kits inspire children to play with scientific ideas and make hundreds of discoveries in their living rooms.

For parents, we’ve made a science kit that arrives through your letterbox containing everything you need to perform incredible experiments with your children – no prep time or extra materials required, and with instructions so clear you can get started with ease.

For children, it’s much more than that. It’s the beginning of an adventure that will take them over the rainbow, across space and into the inner workings of the natural world.

​At Letterbox Lab we are not trying to make science fun. We are celebrating the fact that science is fun. As Albert Einstein said, “Play is the highest form of research”.

Children’s science kits with a difference

 

There are two different versions of Letterbox Lab: the Explore box (for age 6-12+) or the Investigate box (for age 8-12+). The boxes fit through most letterboxes and contain everything but the kitchen sink, so you can spend less time picking up parcels and dashing to the chemist, and more time playing with science.

(Note our lack of committment to an upper age limit – this is because of all the lovely parents and grandparents who tell us they have just as much fun as the kids they purchase the kits for…)

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Tracey had this to say about her son's experience with Explore Box 10: "My little future astronaut loved the Your Place In Space box ! Lots of really enjoyable and exciting experiments."

What makes our science kits truly unique is the way they work in series. Both series are accompanied by fully illustrated colourful instruction booklets featuring Meg and Pico the lab assistants. They guide children through their experiments and lead them on a story through science that spans the twelve-box series.

The Investigate Box comes with collectable lab equipment that is used again and again throughout the series, leaving room in later boxes for fun gadgets and new science toys. Who needs twenty test tubes when you can have four test tubes, a set of buzz magnets, a magnifying glass and a tub of colour-changing slime?

This is more than a chemistry set, Letterbox Lab covers a range of science and engineering topics. It doesn’t matter if your child prefers slippery slime, fizzing reactions or sparkling stars – they will love every box.

A science subscription box with a difference

Letterbox Lab make the World’s only series of science kits.  We think a series of science kits makes a lot of sense. So, we thought we should make it easy to purchase them in series. By joining our science box club you receive everything you need to do exciting science experiments every month.

We’re not in the business of tying people into horrible contracts they can’t escape from though! Our subscriptions are completely free of commitment, and you can cancel or pause at any time.

If you’d rather not sign up for a subscription you can buy these innovative kids’ science kits as individual purchases or pre-pay for as many months as you want. Pre-pay subscriptions don’t have any renewal payments. If you’ve had a one-off box or a pre-pay subscription before and want to continue the series just let us know at the checkout.

It’s our mission to make it easy and convenient for your family to play with science, so feel free to challenge us with requests! Do you want the boxes bi-monthly instead of monthly? Do you want the first box to come to your house and the rest to go straight to your niece? Drop us a line and we’ll endeavour to make it happen.

You don’t need to buy any extra materials to use with Letterbox Lab. We provide everything but the kitchen sink. Over time your collection of cool lab equipment grows and grows.

What’s in the Boxes?

Click below to find out which experiments are in each box of the series

Click here to find out which experiments are in each box of the series

Investigate Box

Box 1: Marvellous Mixtures

Incredible Inks

Rainbow Glasses

Rainbow Spinners

Liquid Rainbow

Brilliant Breathless Balloon

Squirmy Worms

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Box 2: Science Up Your Sleeve

Magic Wand

Floating on Air

Write with Light

Magic Milk

Disappearing Water

Vanishing Flame

Pico in a Cage

Blooming Flower

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Box 3: Magnetoslime

Slippery Slime

Cloud in a Bottle

Marble Mystery

Buzz Magnets

Pico’s Magnetic Hair

Magnetoslime

Slime Drop

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Box 4: Rocket Fuel

Colourful Chemistry

Vinegar Power

Chemical Connections

Meddle with Metal

Rocket Balloons

Fizz Rocket

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Box 5: Let it Glow

Secret Messages

Glow with the Flow

Photon Beam of Destruction

Ultra Colours

Solar Photography

A Warm Reaction

The Fast and the Luminous

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Box 6: Inner Space

Break it Down

Dark as Starch

Root to Success

It’s a Corker

Pop goes the Potential Energy

Robo Hand

Reach for It

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Box 7: Over the Top

Pico Pult

Para-Pico

Under Pressure

Gloveophone

Spring into Action

Elasti Copter

Pico Pult II: Pico Flies Again

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Box 8: Bubbles Ahoy

Bubbleology

Cububble

Double Bubble

Catchabubble

The Unburstabubble

Fizzfoamer

Sail the Soapy Sea

Paddle Boat

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Box 9: Letterbox Rox

Creating Crystals Part I: Crystal dishes

Creating Crystals Part II: Crystal wand

Creating Crystals Part III: Crystal rock

Making Metal

Let’s Get Ready to Rock

Dino Droppings

Crystal Balls

Box 10: Waste of Space

Anti Gravity

Magnetic Earth

Orbital

Starry Skies

It’s Alive

Where No One Has Bean Before

Dino Breath

You Are Here

Box 11: Top Secret

Tea Light My Fire

See Heat

Reactive Writing

Forensic Fingers

The Third Dimension

Picoscope

Box 12: Go Forth and Science

Stained Glass

Hand on Heat

Shake On It

Life Atomic

Moulded For Greatness

Explore Box

Box 1: Hidden Rainbows

Incredible Inks

Rainbow Glasses

Rainbow Spinners

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Box 2: Science Sorcery

Magic Wand

Shadow Box

Pico in a Cage

Blooming Flower

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Box 3: Slimes and Swirls

Slippery Slime

Cloud in a Bottle

Bouncing Slime

Slime Drop

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Box 4: Gas Powered

Painting By Cabbage

Rocket Balloons

Bubbling Volcano

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Box 5: Go With The Glow

Secret Messages

Glow With The Flow

Ultra Colours

The Fast and the Luminous

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Box 6: Get Moving

Pop Goes the Potential Energy

Root to Success

Robo Hand

Reach For It

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Box 7: Up In The Air

Pico-Pult

Elasti Copter

Gloveophone

Under Pressure

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Box 8: Bubbles and Boats

Bubbleology

Cububble

Double Bubble

The Unburstabubble

Sail the Soapy Sea

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Box 9: Chain Reactions

Make it Snow

Disappearing Water

Crystal Balls

Squirmy Worms

Box 10: Your Place In Space

Orbital

It’s Alive

Where No One Has Been Before

You Are Here

Box 11: Keep It Secret

Disappearing Messages

Forensic Fingers

See Heat

Picoscope

Box 12: Engineer The Future

Solar Photography

The Third Dimension

Moulded For Greatness