Competition and the Bead Bugs

Competition and the Bead Bugs
Competition and the Bead Bugs
Competition and the Bead Bugs
Competition and the Bead Bugs
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123 KB|2 pages
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This is a science lab that demonstrates natural selection through competition. In the lab, each group of students will be assigned a lab tool to pick up pony beads with. (You need to have several more tools available; as students ‘die off’ they will join the more successful groups) The students will use the tools to pick up the beads for a set amount of time. After this time is up have the students count the beads; the group with the least amount of beads ‘dies off’. They will join the other groups to represent reproduction of the more successful groups. I have the students use different color beads to show that the bugs will reproduce as well. You can increase or decrease the amount of beads in each round to demonstrate environmental influences. You repeat this step until there is only one lab group left. Most of the students should end up with the same tool. For the tools, I just use what is available that can be used a scoop or used to pick up the beads. You can also use other items for the beads; anything that the students can pick up and is roughly the same size. I never get the same results twice on the tools, it depends on the students. You do have to watch and make sure that they do not use their hands. Be careful because the shredded paper makes quite a mess; I usually get a big present for our janitor because she will not let me use the vacuum.
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2 pages
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