4. BONES MUSCLES
BONES ARE HARD
AND RIGID.
MUSCLES ARE
SOFT AND
ELASTIC.
KIDS HAVE
GOT OVER 300
BONES.
ADULTS HAVE
GOT 206
BONES.
KIDS AND
ADULTS HAVE
GOT 650
MUSCLES.
BONES
JOIN AS
WE
GROW
UP
MUSCLES CAN
CONTRACT AND
RELAX.
5. KIDS HAVE GOT
24 TEETH.
ADULTS HAVE
GOT 32 TEETH.
TEETH
BABIES HAVE
GOT NO TEETH.