Unit 4: Scientific discovery

Capsule

a small container with medicine inside that you swallow
Viên con nhộng

Compound

A chemical that combines two or more elements
Ex:Salt is a ... of sodium and chlorine
Hợp tố chất

consequences

a result of a particular action or situation, often one that is bad or not convenient:
Ex:I told the hairdresser to do what she wanted to my hair, and look at the ...!
Kết quả;ảnh hưởng

Dose

a measured amount of something such as medicine:
Ex:The label says to take one dose three times a day.
Liều lượng

emissons

the production and discharge of something, especially gas or radiation
Khí thải

exposure

to come in contact
Phơi bày

food chain

A series of steps in which organisms transfer energy by eating and being eaten
Chuỗi thức ăn

infection

Contamination or invasion of body tissue by pathogenic organisms
Sự nhiễm trùng

interaction

the interplay that occurs when the effect of one factor (such as environment) depends on another factor (such as heredity)
Phản ứng hổ tương,sự tương tác

pesticide

A chemical intended to kill insects and other organisms that damage crops.
Thuốc diệt sâu

side effects

reactions to medicine other than the one intended
Tác dụng phụ

bacterial

pertaining to bacteria
Vi trùng;vi khuẩn

contagious

Able to be passed easily from one person to another.
Dễ lây lan.

comtaminated

=polluted
Nhiễm bẩn

controversial

arousing argument, dispute, or disagreement
Ưa tranh luận

Crucial

extremely important
Cốt yếu chủ yếu

essential

absolutely necessary
Thiết yếu

Petrochemicals

Chemicals obtained by refining (distilling) crude oil. They are used as raw materials in manufacturing most industrial chemicals, fertilizers, pesticides, plastics, synthetic fibers, paints, medicines, and many other products.
Dầu hoá chất

absord

to take in
Hấp thu miệt mài

comtanminant

Nhiễm bẩn

released

to set free
Thoát khỏi