WEBVTT

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When engineers talk about materials,
they don’t mean fabric.

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At least not ONLY fabric. 

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They mean whatever something is made of like
plastic, fabric, or anything else. 

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The properties the way a material
looks, feels, or responds 

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are important to how an engineer might use
the material to design a solution.

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One property of a material is how it acts
when it meets up with water. 

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Some materials soak up a lot
of water right away. 

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Others absorb it more slowly.

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Some materials dry out quickly, and
others stay wet for a long time.

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Some materials do not soak
up water at all.

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Properties help engineers choose which materials
to test out in their designs. 

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Which properties are likely to be helpful to water
my plants while my mom and I are away?