Cut out two identical pieces
of cardboard,as deep as the
box is, and two thirds as
wide.
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Cut a small hole in one end
of the shoebox.
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Paint the inside of the box
and and the pieces of
cardboard the color black.
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Using the tape that you have,
attach the cardboard to the
inside of the box.
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Stand the box upright with
the the hole at the top.
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Plant a bean in the flowerpot.
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Water the soil and place the
pot in the bottom of the box.
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Fit the lid on the box,making
sure that no light can get in
around the edges.
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Remove the lid once a day to
watch the plant growing.
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How well can it find its way to
the light? What happens if
you plant another bean and
this time closed the hole?
Do it at home and find out!
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