It
helps plants grow, it dries clothes and it keeps us warm - but
what is it? It's the sun, of course - and it powers all of life
on Earth.
We can see the power of the sun by growing different
kinds of plants, such as beans, mustard and cress or flowers.
Let's design and make two important tools that
can help plants to grow properly: a mini greenhouse, and a timer
to remind us when our plants need watering.
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