写一则化学实验室的规则,英语作文

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  • Purpose:

    See mold (mold) the circumstances under which grow the fastest

    Experimental materials:two slices of bread,water,a paper bag

    Experimental methods:(1) Take 1 slice of bread,tear (slice) in two,one on the dry environment,a sprinkle of water on top

    (2) and then take a piece of bread,torn in half,one in a dark environment (in a paper bag) and one on the glare

    Results:top watering bread mold grow faster on

    On the paper bag of bread mold grow faster on

    Experimental results:mold in damp dark environment grow faste