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Blue, brown, yellow, black, and white construction paper marked with the appropriate diametercircle and a precut apple.
Student materials: Scissors, glue, a black and white crayon
to label with and a box of crayons to color the project.
Now,
1. Cut the
apple in half across the core. The
skin
represents the crust, the heart represents the
mantle, the seed coat represents the outer core, and
the seed represents the inner core.
2. As a group web
or brainstorm one or all of the sciences
that study the layers of the earth and the importance
of each.
4. Using construction
paper, model the
layers of the earth. Blue 8 1/2 " circle labeled 6-40
miles. The crust is made of many plates which "float"
above mantle. The crust is thicker and lighter at the
continents and thinner and denser at the ocean floor.
Brown 7 " circle labeled 1,800 miles. The mantle lies
below the crust. It is a thick layer of solid rock.
Many scientists believe that the mantle transfers heat
from the core to the surface. Yellow 6" circle labeled
1,375 miles. The outer core is made of melted iron and
nickel. It is much denser than the rock layers above
it. The temperature of the outer core can range form
4000 to 9000 F. Black 3" diameter circle labeled 1,750
miles. The inner core is made of solid iron and
nickel. These materials sank to the center of the
earth while it was still in a molten form.
Use white construction paper
for the background and label
each circle at the top
as it is glued to the background.
Decorate yourprojects as
they nowunderstand the earth.
Lesson planadapted fromhttp://www.col-ed.org/cur/science/sci/sci56.txt
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