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Cards In This Set
| Front | Back |
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How has chemistry and technology
helped farming over the years?
|
-Chemical pesticides and fertilizers
help produce higher yeilds,
|
|
Which substance was used in making
soap 100 years ago?
|
Lye.
|
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Which synthetic fibre is used to
produce waterproof and windproof clothing?
|
Gore-Tex
|
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What are examples of synthetic
fibres?
|
A: Gore-Tex, Polyester, Kevlar, Bamboo,
Spandex.
|
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What are examples of natural fibres?
|
Linen, Cotton, Silk, Wool, Cashmere,
Canvas.
|
|
What is a polymer?
|
A molecule that is made up of many
smell, identical sub-molecules.
|
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Examples of natural polymers are:
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Starch, Cellulose, Proteins, Nucleic
Acids (RNA & DNA), Natural Rubber
|
|
Examples of synthetic polymers and
their uses are:
|
A: Polycarbonate – Used to make
modern eyeglasses.
Polystyrene – Used to make Styrofoam cups and insulation. Polyethylene – Used to make plastic bags, and film wraps. |
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An alloy is...:
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A partial or complete solution of one
or more elements in a metallic mix.
|
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The household product responsible
for making bread rise is:
|
Yeast
|
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What is the alloy mostly used for
making kitchen utensils?
|
Stainless Steel
|
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What does chemical reaction does a
drain cleaner have when it breaks down the protein in a clogged sink?
|
Heat
|
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Furniture polish can be made by
mixing what two substances?
|
Lemon juice and mineral oil.
|
|
What does hydrogen peroxide turn
into when poured on a cut?
|
Water and oxygen.
|
|
What two elements react to produce
hydrogen gas?
|
Acids react with aluminum
|
