Celebrate World Oceans Week with these free downloadable activities from the previous issues of Eco Kids Planet magazine:
The world's seas and oceans are full of amazing marvels. At the last count, scientists reckoned there were some 230,000 species living in the sea – perhaps as much as four-fifths of all life on Earth. The magnificent great white shark can grow 6-8m long – almost as long a London bus, and is the largest fish predator on the planet!
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It's best to print the template on an A3 size paper (double A4 size) if you have access to an A3 printer.
Make a coral-themed desk tidy out of paper towel tubes!
Print out the red-squared paper and follow easy step-by-step instructions to create an origami crab.
A coral reef ecosystem is bursting with life and biodiversity. Take a look in more detail at the relationships between the living creatures. Every single organism plays an important role in the existence and survival of this amazing underwater environment. Can you create your own food chain using different creatures from our list?

The Caribbean Sea and its islands are among the most exotic, biodiverse and beautiful places in the world. Can you spot 10 differences between these pictures? Colour a shell each time you find one!

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This competition asked you to design a secret egg hidden somewhere in nature, and your entries went far beyond the obvious nests and burrows. Eggs arrived disguised as pine cones, floating on leaf boats, perched on volcano ledges, tucked into cloud cover and even masquerading as chocolate Easter eggs to fool foxes. Thank you to every reader who took up the challenge and thought like a parent bird, fish, reptile or imaginary creature trying to keep their precious egg safe.
We were swept away by the response to this competition. Letters arrived from rivers across the world – the Thames, the Mississippi and many more unnamed waterways – each one brimming with personality, passion and a genuine love of the natural world. You gave your rivers voices that were worried, hop...
Somewhere beneath a grassy field right now, a tiny insect is building an underground loudspeaker. Male mole crickets engineer horn-shaped burrows that amplify their calls hundreds of metres into the night air – and your child can recreate the same science at home using nothing but cardboard and a phone. This hands-on experiment explores sound, shape and natural engineering in a way that is genuinely surprising. No screens, no special equipment, just a brilliant idea borrowed from nature.