By Eden :)(:
First, our planet was just rock and might have been made another red planet, or should I say, a purple planet. This is all how it started. There was nothing, but then little bacteria that looked like mini purple sticks came along.
These purple bacteria were the first living things on Earth, but they lived in the water as protection from harmful rays made from the sun. There was so many the planet looked purple. Their food was the sun, but there were so many bacteria that some didn’t get enough food. The bacteria with not enough food adapted to eat another ray, which they turned green, and this is where life changed.
First, our planet was just rock and might have been made another red planet, or should I say, a purple planet. This is all how it started. There was nothing, but then little bacteria that looked like mini purple sticks came along.
These purple bacteria were the first living things on Earth, but they lived in the water as protection from harmful rays made from the sun. There was so many the planet looked purple. Their food was the sun, but there were so many bacteria that some didn’t get enough food. The bacteria with not enough food adapted to eat another ray, which they turned green, and this is where life changed.
These bacteria gave off something the purple bacteria couldn’t give off: oxygen. Oxygen was everywhere and went up so high it created the ozone layer. The green bacteria spread all over the world, not just in the ocean but also on land and became the your plants in your backyard. Did you ever wonder why plants are green? Well there is your answer.
There’s more, do you ever want to see a huge centipede? Just increase the oxygen to a higher level and all the insects will be as tall as you. Do you ever wonder why plants have thorns? Well, yes for protecting themselves from insects and maybe a few deer, but plants evolved to protect themselves from dinosaurs. Do you know how soil started? When the plants moved out of water onto land and they didn’t have water, so they grew roots to get water from underground. The roots were so strong they could break almost anything so when they break rocks, the rocks turn into soil. So, when you see some big and bulky looking trees moving into your street make a run for it! This is how you grow a planet!
For all this and more exciting facts and videos see How to Grow a Planet- episode 1. Video by Professor Iain Stewart. |