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You'll need a
few things to get started such as some seeds, some paper towel, some
plastic wrap or a big ziplock bag, and some water-proof plates
(these ones are made of plastic). You'll also need some water,
and if you want to take this experiment one step further, you'll
need a non-paper cup and some soil. For our experiment we
chose radish and green bean seeds, because they grow well in
Michigan and are quick to sprout. |
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Take a piece
or two of paper towel and lay it out flat on a surface you don't
mind getting wet. |
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Fold the
paper towel in half. |
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Then fold it
in half again, so that it's a quarter its original size. |
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Place the
paper towels on the plates and pour some water on them. You
should wet the towels enough that the paper is soaked through, but
there shouldn't be a puddle of water standing on the plates.
If there is, pour the extra off. |
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Open the last
fold in the towels back up, so that it's half-sized again. |
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Arrange your
seeds on half of the exposed wet paper towel leaving space between
each seed. If you don't leave enough space, the roots that
sprout from the seeds may become entangled, making them difficult to
plant. Here on the left you can see the green bean seeds
arranged for sprouting. |
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Here you can
see the radish seeds ready to sprout. We arranged the radish
seeds close to each other so that you could see how the sprouts
sometimes become tangled together. |
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(Here you can
see how small radish seeds really are. Yes, that's a pencil
lead pointing at them!) |
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Once
you've arranged the seeds, fold the paper towel back over so that
the seeds are surrounded by wet paper towel. Push the towel
down carefully around the seeds to ensure that the seeds are
touching the wet surface of the towel. |
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Fold in the
corners of the paper towel to make sure they aren't sticking out
past the edges of the plate and take your plastic wrap and tightly
wrap the plates. You may have to use more than one layer of
plastic wrap to make sure you have a good seal. Alternatively,
you could use a ziplock bag. If you don't have either, you can
do without, but you have to make sure the paper towel remains damp
to the touch. |
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Seeds need to
be kept within a certain range of temperatures, or else they won't
sprout. Room temperature such as maintained in most homes will
do fine. We noticed that the window sill we chose to sprout
our seeds on got a little chilly at night, so we put a couple pieces
of ordinary cardboard under the plates to act as insulation against
the cold. |
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After just
three days we opened our plastic wrap up, unfolded the paper towel,
and, guess what, we had sprouts, and a lot of them!!! Could
anything be easier than that? Here you can see the green bean
sprouts, with lots of space still between each one. |
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Here you can
see a close up of the radish seeds--they really took off in just
three days time! Notice that the roots on the radish seeds are
all tangled together. In order to plant these someone will
have to carefully untangle them all! |
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Here's a
close-up of one of the green bean sprouts. The sprout part is
actually a root, and the part that will become the plant is forming
inside the seed still. |
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And here's a
radish seed sprout. You can see that the radish seed developed
much more quickly than the green bean. The radish seed is
about ready to shuck its outer seed casing and spread its first pair
of leaves to start collecting sunshine. |
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If you would
like to actually see the sprout become a small plant, you'll need
some cups such as the one on the left. You'll also need some
soil to go in them. |
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We used some
seed-starting soil such as can be found at any hardware or
home-improvement store. |
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Damp the soil
in the cup with some water and poke a small hole in the center of
the soil with your finger. Don't go any deeper than a half an
inch, and don't over water. Just like the seeds, most plants
don't like standing water. |
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Carefully
take one of your seeds and place it in the hole, sprout down.
Cover the top lightly with soil. Don't pack the soil down, as
loose, airy soil is best for most plants. |
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In a few more
days you should see something like this! These are the radish
seeds, or more correctly, these are the radish plants! |
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You can see
that after the same amount of time the green beans are really
lagging behind, but that's ok, too, they just take a little longer,
is all. |
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And just look
at this! After yet one more day the beans have started to
really shoot up into the air! While the radishes are still
doing great, they are a little skinny and look like a good wind
would push them over. The green beans, on the other hand, have
produced these fantastic, thick stalks that are truly rigid and more
than strong enough to support their weight. Of course, there
really is no basis for comparison here--it's sort of like comparing
apples to oranges, only we're comparing radishes to green beans! |
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Here they
are, side by side. Both sets of plants are thriving--just look
at the healthy root networks being developed within the cups!
Soon they will be ready for transplant to larger containers.
Of course, these groups of plants we are showing here aren't really
intended for transplant--by putting them all together we've once
again caused their roots to tangle around each other, making
separation difficult, if not impossible without killing the
seedlings. If you intend to transplant your seedlings so that
you may watch them grow through the course of their life-cycle, your
best bet is to plant each seedling in its own cup. |