|
Source
Idea for Our Project:
One day
while practicing our spelling words on the side walk with
sidewalk chalk we noticed many cracks. We wondered what caused
these cracks and if we could reproduce what had happened to the
sidewalk in an experiment. The cracks started a discussion about
earthquakes and the earth. Through lots of reading and looking
up facts we discovered that tension fractures often appear as
cracks on the surface of a sidewalk or road. If you look at
these cracks, you'll find patterns of cracks like the ones we
made with the cheese! We did it!
|
