My 5-year-old loves to quantify things and make numerical comparisons. She wanted to know how tall is the highest mountain, but not in a standard unit of measurement. Oh, no – she wanted to know how many times taller is it than her 1-year-old sister?
Many children are captivated by dinosaurs and it’s easy to see why – they are creatures that bridge fantasy and reality! Nobody has seen one alive but we have found fossils, which have helped us to understand what dinosaurs and other prehistoric creatures were like.
Dinosaurs were reptiles that lived on Earth 252 to 66 million years ago in a period of time called the Mesozoic Era, or the ‘Age of Dinosaurs’. But, dinosaurs weren’t the only living creatures during that time. There were also other types of reptiles, as well as fish, birds, insects, small mammals and plants.
This was asked of me by a friend whose son wants to know how thick his skin is. It’s a great question but the answer is not quite as simple as you might think!
Today, we went for a stroll at Westonbirt Arboretum – a good opportunity to answer this question about why trees are green.
Trees and many other plants look green because their leaves and sometimes their stems contain a substance called chlorophyll. The word ‘chlorophyll’ comes from two Greek words that mean ‘green’ and ‘leaf’.