Drag each tile to the correct box. Match each sentence with the statement that explains why it is included in the passage.
to develop the idea
that different
materials have been
used to make shoes
to develop the idea
that scientist believe
humans have used
shoes for a long time
to refine the idea
that materials used
for shoes have
evolved over time
The Masai of Africa used rawhide; the people of Indik
used wood; and the Chinese and Japanese used
rice straw.
Most soles are made from synthetic materials such
as ethylene, vinyl, acetate, rubber, and polyurethand,
which provide better traction, durability, and water
resistance than leather soles
In studying bones of the smaller toes of fossilized
skeletons, scientists observed that the thickness of
these bones decreased somewhere between 40,000
and 26,000 years ago