KiwiCo Review – Kiwi Crate for 5-8 year olds: Learn about the Science of Tension


This is a great way of introducing kids to early scientific concepts found in physics – namely, force and tension. We love playing tug of war every evening with our wearable chewable cotton terrycloth band. When we hold it loosely so that it rests between us, it is slack. When we pull, that force travels along it and it becomes taut. That is tension at work. That pull force and tension can also be used to make something (or someone) move.

The first thing that you build with the crate is a simple puppet show. The handy diagrams and kid friendly physics explanations will help you understand that while building and playing with this you are demonstrating the use of levers, force, and tension. There are multiple backgrounds included and you can design your own.

The second activity sees you constructing two racing turtles and weaving their shells. You then experiment with string tension to race your turtles!

The nice thing about the solid wood shell is that if your turtles deteriorate in the future, you can use brightly coloured yarn to turn these into wall art or christmas tree decorations.

Want more ideas for learning about tension?

Get busy in the great outdoors! Go fishing. Play tug of war. Lie in a hammock. Carefully set up a tightrope between trees (low to the ground!). Play tennis. Visit a suspension bridge in your area. Go on a high wire obstacle course. Ride a zipline!

Get busy indoors! Ride an elevator. Play a guitar. Create a toy elevator (coming soon!). Create your own ‘floating structure’.


This is not a paid review. I spent a lot of time searching the internet to find out more information about the Kiwi Crate and Atlas Crate boxes before deciding to try them and found the blog posts / photos that people shared were really useful!

If you would like to try Kiwi Crate (or one of their other lines), you can receive 50% off your first box by clicking here.

What I like about the Kiwi Crate kits is that they use a combination of Science, Technology, Engineering, Arts, and Mathematics to explore a concept or idea. There’s no obligation to sign-up in an on-going capacity so it’s easy to tie them in with birthdays / Christmas; the boxes are quite compact so they also store easily in a cupboard for bringing them out on a rainy day. Mind you, this only works if you spot the package on the door-step first – children become quite adept at recognising the green Kiwi Crate box and screaming with delight at it’s arrival!

The boxes are sent randomly so there’s no way to know what will come in the future; however, you can log-in to your account at the start of each month to see what box has been selected. Your box history is kept which means that even if you cancel and then pick-up again the following year they can make sure that you aren’t sent repeats of boxes.


The Kiwi Crate is aimed at ages 5-8 years. It comes with a copy of the Explore magazine which opens with a fun comic about Steve the Kiwi and his friends. [As a side note, these are made by an American company despite the use of our New Zealand native bird]. These comics are really approachable for younger kids and a great way of exploring the concepts being introduced in a relateable manner.

The Explore magazine provides a range of information on the topic, it might include some simple games or tricks to try at home, and provide ideas for additional crafts / activities using simple materials. It also has a sticker [unique to each box theme] to put on your Kiwi Crate chart.

The box also includes an instruction manual and the materials that you need to build the main craft. Generally, there are two activities to do – one that is more art related, and one that is more mechanical engineering. What makes the kits special, is how well crafted the engineering components are. They really are designed for the intended age group so that they can either build themselves or help assist an adult. There are handy visual images and checkpoints to make sure that things are aligned correctly. There is no super-bonding-fingers-together wood glue to use with these projects (which makes them great for highly sensory children); instead parts come with double sided tape finely engineered on so that you just need to remove the backing strip of paper.


Discover the World with ATLAS Crate

#1 Introducing the World

#2 Discover Japan

#3 Discover France

#4 Discover Madagascar

#5 Discover Colombia

#6 Discover England

Explore STEM with Kiwi Crate

#1 Arcade Box (and the Claw!)

#2 The Amazing Animation Box (make your own 19th century movie with a Zoetrope!)

#3 The Mechanical Sweeper Box (make your own baleen whale!)

#4 The Disc Launchers Box (play games with physics!)

#5 Kaleidoscope Puzzles (explore symmetry and mirrors!)

#6 The Human Body (learn about biology)


10 thoughts on “KiwiCo Review – Kiwi Crate for 5-8 year olds: Learn about the Science of Tension

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