material:
zinced-steel sheet (100cm x 10cm)
tape-
-yard-stick
two cups hot (60 ° C) and ice-water-some
fleacrabs
With these materials we build a . tempratureorgan
We build a bowl and divide it into six sections, each 10 cm.
Then we fill the bowl up with water 1 cm. On each site of the bowl we impute a cup, one with ice water and one with hot water. At last we put the fleacrabs in the bowl, watching what happens.
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