4 Valentine experiments 4 your loved ones

4 Valentine experiments 4 your loved ones

I must admit that I am not a big fan of the commercial side of Valentine’s day but I have no problem with the idea of telling someone you love just how much they mean to you. When I get to couple the sentiment with some science experimenting

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Coloured flower science experiment using tulips

Coloured flower science experiment using tulips

I know I haven’t been blogging much lately, I am trying to work on a little something else that I have wanted to do for a very long time. If I ever get the other project finished I’ll be sharing it right here so watch this space

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Fun Friday – Transpiration

Fun Friday – Transpiration

What is transpiration?

Transpiration is the process whereby water is taken into a plant by the roots, transported up through the plant and released from the leaves as water vapour!

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Transpiration is a bit like perspiration (sweating) in humans – it helps to keep the plant cool! As the water vapour transpires out of tiny holes (called stomata) fresh water is drawn up from below. This means there is always an unbroken tower of water running from the bottom to the top of the plant at all times. Water travels up the plant through tubes called Xylem. The constant flow of water through the xylem tubes of the plant is called the transpiration stream; this stream keeps the stem firm so that it can support the weight of the plant. Plants put roots down into the soil to draw water and nutrients up into the plant.
Daintree Rainforest: Image source Wikimedia Commons
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Transpiration accounts for up to 10% of water in the atmosphere! Some trees can loose hundreds of thousands of litres of water in a single day through transpiration! The water vapour trees transpire

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