Science

help with headaches, pain relief e.g. aspirin

help you to sleep

used by asthmatics. helps with asthma.

helps with stomach upsets.

medical chemicals.

people who work in a chemist shop.

things added to food.

added to food to make it last longer - have a longer use by date.

added to food to make it a certain colour e.g coloured icing on cakes.

added to food to give them a stronger certain flavour e.g. smokey bacon crisps.

mix oil and water e.g ice-cream, mayonaise.

normally oil and water separate and dont mix. the Emulisifier makes them mix together.

shell, esso - big companies that are across different countries.

man-made.

starting materials used to make a product. usually natural materials e.g coal, cotton, wood etc.

bulk - lots & lots/ large amounts.

the chemical industry make some chemicals on a scale of thousands of tones per year e.g sulfuric acid, chlorine.

chemicals made in smaller amounts e.g drugs and pesticides.

chemicals made in small amounts that are used by other people/manufacturers for a certain purpose.

the part of a chemical works which makes a chemical.

changes raw materials into pure chemicals. e.g acids, alkalis, salts.

it can carry on over a long period of time without harming the environment.

- develop renewable resources

- make efficient use of energy

- reduce waste.

chemical reactions that give out heat,