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You can model the Peppered moth scenario.
50 green toothpicks 50 red toothpick. Throw them over an area of grass. Give a class 5 minutes to find as many as they can. Count them up to see the change in the toothpick population/species. (food colouring for the toothpicks)
Just google - M&M survival challenge. It will take you to a site called Science Buddies. It involves finding M&M's on coloured sheets of paper or cardboard. Comes with a prac printout.
Lyn.
We do a fun prac called 'bird beaks & natural selection'......it gets pretty noisy with the kids in a feeding frenzy but it works well & they get the concept.
Bird Beak Prac 2011.docx
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