comes from trees; strong and can float.
wood
light and smooth; can be made into many shapes and does not let water in.
plastic
soft and full of air; feels light and can float on water.
foam
hard and strong; can be shiny and sometimes rusts in water.
metal
thin material we can write on; it soaks up water easily.
paper
hard and does not bend easily
rigid
can bend or move easily without breaking.
flexible
to go down under the water.
sink
to stay on top of the water
float
does not let water in.
waterproof
soaks up or takes in water easily
absorbent
breaks or bends easily; not strong
weak
what something is made of
materials
a thing that floats on water and can carry people or things.
boat
a careful test to find out answers or facts
investigation
can see through it easily.
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