chemistry G 10 test lesson 1

one of the earliest applications of chemistry

• Medicine

• nanotechnology

• analysis

• studying matter

the substance which extracted from a natural resources or prepared in lab. is :

• fertilizer

• medicine

• dye

• chemical compound

ancient Egyptian used chemistry in ...............:

• fertilize crops

• purifying water

• mummifying their dead

• building pyramids

.......................is the science interesting in discovering substances with extra ordinary properties

• biochemistry

• physical chemistry

• thermal chemistry

• nano chemistry

an organized structure of knowledge is the definition of :

• facts and concepts

• chemistry

• physics

• science

cell phones batteries is an invention based on which branch of chemistry:

• physical chemistry

• biochemistry

• thermal chemistry

• electrical chemistry

.the most important branch of science which interested in discovering new advanced methods in measurement :

• physics

• geology

• biology

• chemistry

air pollution studied by ........................ chemistry:

• physical

• biology

• environmental

• nano

the correct method for measurement is :

• choose a suitable tool

• get numerical value and put a measuring unit

• adjast the time

• choose a suitable tool then get numerical value and put a measuring unit

the solution which has pH less than 7 considered :

• acid

• base

• neutral

• salt