Subject: Prehistory

Concept: Origins of Photosynthesis

Once a fish was swimming in the seas. It came across some ancient stromatolites. It asked the older turtle who was swimming there what the stromatolites were. The turtle answered, “The stromatolites are the ancient remains of the ancient single celled organisms that grew in shallow water and built up to form rocky moulds.”

The fish asked, “All creatures eat something. What did these single celled organisms eat?”

“That is a good question,” said the turtle, “These single celled organisms began to harness sunlight to make food in a process known as photosynthesis. That was the first origin of photosynthesis.”