Environment:
Autumn Leaf Banner
Today's
Snack: Into a clear glass or plastic
cup, make several layers of bite-sized fruit: start with green grapes on the
bottom, followed by a layer of yellow pear chunks, then cut-up orange sections
or mandarin oranges, and top with vanilla wafers, cut in half. That's kind of,
sort of, the stages of color that some leaves go through! Wash it down with a
glass of milk that starts off white and stays white!
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Supplies:
Pretty fallen leaves
under trees | sacks
Shelf paper | Hot-glue
gun or school glue
Have
you ever wondered why tree leaves take a while to change from green to pretty
colors and, eventually, brown?
Why
wouldn't they just turn to brown overnight, and fall from the tree?
Well,
it's because of pigment. Pigment is the substance within the leaves that gives
them their color. When autumn comes, and the amount of sunlight and
temperatures change, leaves change colors in stages. The same leave may go
through several colorations. Some trees have a lot of color variation, while
others pretty much go from green to one other color, and that's it.
To
see for yourself, take a fun, short field trip to a park or playground at the
peak of autumn color, or shortly after the peak.
For
an example of variety in color changing, if there is a sour gum or mountain ash
tree around, look at the leaves underneath it. See if you can find different
leaves that are green, yellow-green, yellow, yellow-orange, orange,
orange-brown and brown. Those trees have very gradual stages of color change,
compared to many others.
You
can find amazing, bright shades of red under dogwood and oak trees, and many
different shades of red under the same tree.
Similarly,
you can find beautiful shades of yellow under the gingko tree.
Choose
a tree that has a lot of leaves under it, and select as many different colored
leaves as you can find from the same tree. They should have the same shape. Put
the leaves from the same tree into one sack.
You
can collect leaves from different trees if you'd like, but keep the collected
leaves separate so that you can track color progression in each one.
When
you get back inside, lay the leaves from one tree out onto shelf paper.
Organize them from top to bottom, or from left to right. Lay them out starting
with green shades, to yellow, to orange, to red, to brown. Glue in place.
You
can make more leaf banners if you'd like, or make several rows of
color-changing leaves on the same banner. Let dry.
Hang
your autumn leaf color-changing banner and enjoy the colors.