Pedaling Protection
MAKE A HELMET FOR AN
EGG!
Do you know what a bicycle
helmet will do for you if you have a bike accident? It
will protect your head and your brain from serious
injuries!
What would happen if you dropped an
egg that hadn't been cooked? It would break, right?
Pretend your head is that egg! Would you like to keep
your "egg head" from breaking? You can make a little
"helmet" to protect your egg!
Would you like to see how a helmet can
protect you? Try this experiment!
Ask your parents or a friend to
help you with this activity.
You will need these
things:
a fresh egg
a plastic egg (if you have
one) to practice fitting a helmet on to
paper towels
trash bags
things to make a helmet
from, like paper, styrofoam, styrofoam packing
peanuts, bubble wrap, cardboard, plastic, string, and
tape
What would happen if you dropped
a fresh egg from about as high as your shoulder? Would it
break? If it's OK with your parents, try it! It'll be
messy, so you might want to drop it onto a garbage bag.
(Be sure to wash your hands with soap after you clean up
the egg, because raw eggs carry samonella
bacteria.)
What could you put around the
egg to keep it from breaking when you dropped
it?
Think about how a bike helmet
protects a person's head. Look at your own bike helmet.
How does it protect you? How does it keep your head
safe?
Now, you can think about what to
put around your egg to keep it safe like a bike helmet
keeps your head safe.
You could use a plastic egg for
practice as you design your egg helmet. Plastic eggs
aren't as messy as real ones, and you can keep using your
plastic egg over and over again.
After you make a helmet that
protects your plastic egg, try it on a real
egg!
Put your helmet around the egg and
drop the helmet with the egg in it from shoulder
height.
Does your helmet keep the egg
safe?
You might need to try design a
few helmets before your helmet protects your egg! Good
luck!
This experiment was used by permission
and based on directions from a website for teachers:
http://www.classroom.com.
If you want to try some easy
experiments, check out friction
and inertia
in our "Pedaling Parts: How Bicycles Work"
pages.
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