Chemistry In Our Lives

Question 0

Chemist

Answer 0

Is a person who actually manufactures medicine in the laboratory

Question 1

Pharmacist

Answer 1

Take a doctors prescription. He/she also dispenses the medicine.

Question 2

Pharmacy

Answer 2

Is the building a pharmacist works in.

Question 3

Rubber

Answer 3

Naturally occurring plastic

Question 4

Natural materials

Answer 4

Wool
Water
Silk
Crude oil
Cotton 
Fur

Question 5

Synthetic material

Answer 5

“Artificial” or “man made”

Question 6

Examples of synthetic materials

Answer 6

(Tights), polyester (shirt), polythene (plastic bags), glass and terylene (crease free clothes), acrylic (yarn), melamine (plastic plates).

Question 7

Plastics are made from

Answer 7

Crude oil

Question 8

Fossil fuels

Answer 8

Are formed from the remains of plants and animals that lived millions of years ago e.g coal, oil and gas.

Question 9

Hydrocarbons

Answer 9

All fossil fuels are made mainly of the elements hydrogen and carbon, and so are called hydrocarbons.

Question 10

Methane

Answer 10

Natural gas.

Question 11

Fossil fuels produce

Answer 11

Carbon dioxide (CO2) and water H2O) when burned.

Question 12

Acid rain

Answer 12

Sulfur dioxide combines with rainwater to form sulfuric acid, causing acid rain.

Question 13

Acid rain harm

Answer 13

Kills fish, is harmful to plants and erodes limestone buildings.

Question 14

Fuel

Answer 14

A substance that burns in oxygen to produce heat.

Question 15

Fire triangle

For a fire to happen to need

Answer 15

1. Fuel
2. Heat
3. Oxygen

Question 16

Properties of plastics

Answer 16

Easily moulded Into different shapes
Durable (lasts long time)
Waterproof
You can get hard and soft forms if plastic
Easy to clean
Lightweight
Plastics are insulators and won’t conduct electricity

Question 17

Polythene

Answer 17

Tough waxy plastic used around electric cables and for plastic bags.

Question 18

Polystyrene

Answer 18

Packaging, for drinking cups, and also for insulation in cavity walls of houses.

Question 19

PVC

Answer 19

Drains and pipes and the cladding on the walls of houses.

Question 20

Plastics are made from chemicals called

Answer 20

Monomers.

Question 21

Plastics are

Answer 21

Non- biodegradable.

Question 22

Advantages

Answer 22

Synthetic materials are often brighter, may be cheaper.

Question 23

Disadvantages

Answer 23

Non biodegradable

If we reuse or recycle our plastics, then this disadvantage can be overcome.