First Children Encyclopedia

(Marvins-Underground-K-12) #1

Your amazing body


Anatomy.^99


Being human
Although we look different from
animals, our bodies are similar
on the inside. Our closest
animal relatives are
chimpanzees.

Water, water
Your body is mostly
water – it makes up
about two-thirds of
your weight.

No substitute


The human body is too


complicated for robots to


copy. Robots can copy the


way we walk, but they


can’t think or feel like we do.


Robot


Curiosity quiz


Take a look at the


pages in this section


and see if you can


find these pictures.


Chimps have
hands like ours.

Chimpanzee

Compared to chimps,
our bodies look almost
hairless.

The ingredients


Your body is made of just


a few simple chemicals,


plus water.


Carbon is what diamonds
and coal are made of.
A fifth of you is carbon.

Iron makes your blood
red. You have enough to
make one small iron nail.

Phosphorus is in the
tips of matches, as well
as your bones and teeth.

Sodium and chlorine
make salt. Blood is one-
third as salty as sea water.

Potassium is used in
some types of soap. It’s
also in your body fluids.

Nitrogen is important in
muscles. It’s also the main
ingredient in air.
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