Flashcards in Scientific Discovery (Chemical ,Medicine) Deck (25)
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1
Farmers use pesticides and herbicides to kill pests and weeds. They use fertilisers (like nitrogen, phosphorus and potassium) to promote plant growth.
fertile describes land that can produce a large number of good quality crop
#pesticides :/ˈpes.tɪ.saɪd/
a chemical substance used to kill harmful insects, small animals, wild plants and other unwanted organisms:
The pesticides that farmers spray on their crops kill pests but they can also damage people's health.
# herbicide ɜː.bɪ.saɪd
a chemical which is used to destroy plants, especially weeds
#fertilisers /ˈfɜː.tɪ.laɪ.zəʳ/
a substance added to soil to make plants grow more successfully:
artificial / chemical fertilizers * liquid fertilizer * a bag of fertilizer
2
hydrocarbons
a mixture of carbon and hydrogen
3
metalloids
something that can act like a metal
4
urban myth
a commonly told story not based on fact
5
dosage
the amount of medicine you should take
6
compound
a chemical that combines two or more elements
7
polluted location
contaminated site
8
through
via
9
come into contact with
exposure can take place
10
what we eat
the food we consume
11
the idea
the notion
12
toxic
poisonous
13
examining
analysing / assessing
14
potential consequences
possible interactions
15
mixing chemicals may cause a chemical ......
reaction
16
#to make sth white or pale by a chemical process or by the effect of sunlight; to become white or pale in this
#a chemical that is used to make sth become white or pale and as a DISINFECTANT (= to prevent infection from spreading)
Bleach
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the release of gas
emission
18
the chemicals derived from petrol or natural gas
petrochemicals
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the chemical added to food
additive
20
opposite of synthetic
organic
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the different types of synthetic material which can be moulded and shaped to make many products
PLASTICS
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a form of energy from nuclear power which is dangerous to humans and animals
radiation
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material with particular physical characteristics:
substance
an organic/chemical substance
What sort of substance could withstand those temperatures?
24
natural remedies
1.a way of dealing with or improving an unpleasant or difficult situation:
There is no simple remedy for unemployment. * There are a number of possible remedies to this problem.
2 a treatment or medicine to cure a disease or reduce pain that is not very serious:
a natural / herbal remedy * an excellent home remedy for sore throats
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