MadSci Network: General Biology |
Hi Jenny You could try a simple experiment to help people to think about whether or not new life can arise "spontaneously" from inanimate material. Take an unopened bottle of mineral water, an empty bottle of the same type and some pond or puddle water. Fill the empty bottle with pond or puddle water and seal it. Leave the two bottles together in a light place and watch what happens as a few days go by. You should see the pond water begin to turn green because algae will be growing it. The tiny algae spores were there all along, but the light and warmth causes them to break open and grow. The sealed bottle of mineral water will stay clear because it doesn't have any spores in it to begin with. If life can arise spontaneously, you would expect the mineral water to grow algae, too if you provide the same conditions for each bottle. If you want to try a different approach, you could set up a role-play where a seventeenth century scientist has "time-travelled" to the twenty first century to meet a modern scientist. Hope this is useful Mel Williams
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