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Reversing Fish

In my new book, How to Find a Rainbow, Reena and Rekha discover that you can only see a rainbow if the sun is shining behind you and it’s raining in front of you. This ‘reversing fish’ makes use of some of the same science that explains how rainbows form! You will need: • A clear cylindrical glass or jar of water • A piece of scrap card or paper • Something to draw with What to do: Step 1: Draw a fish on your piece of paper about a third of the… Read more Reversing Fish

Re-appearing Rainbow

In my new book, How to Find a Rainbow, Reena and Rekha discover that you can only see a rainbow if the sun is shining behind you and it’s raining in front of you. This ‘re-appearing rainbow’ makes use of some of the same science that explains how rainbows form! You will need: • A clear plastic (polythene) bag – ‘ziploc’ or clear plastic document wallets work well. • The rainbow template you can download below • Coloured felt tips (ideally all seven colours of the rainbow) • Black permanent… Read more Re-appearing Rainbow

Crisp-Tin Camera

I write about using pinhole cameras with my students in my book Why Don’t Things Fall Up? and include instructions for making one in the book. I also included instructions in Mr Shaha’s Recipes for Wonder. This (rather rough and ready) video shows how to make one. See below for written instructions: You will need: 1 Pringles or similar crisp tube (wiped out and made clean) Sellotape Duct tape or aluminium (tin) foil Scissors or a bread knife 12 cm by 12 cm piece of greaseproof paper (preferably white, not… Read more Crisp-Tin Camera