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|| COMPARING STEM GROWTH TO ROOT GROWTH
THE DAILY ROOT-RACE
Which grows faster; stems or roots? We will germinate some
beans on graph paper which has been placed on top of several
sheets of wet newspaper. We'll cover the seeds with muslin
and roll it up, and keep the newspaper wet. Each day, we
will carefully unroll the soilless garden, to check the rate
of germination. When the seed first shows stem and root, we
will mark, very carefully, the graph paper beside the tip of
the stem and beside the tip of the root. Each day, we will
unroll the garden, and mark the paper beside the tips of stem
and root. This way, we can tell on which days there is the
We can also tell if the stem grows faster or slower than
the root. We can make a graph to show, side by side, the
growth of the stem and the root. The stem calls this "the
root-race." What do you call it?
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