CIDESCO (Natural sciences portion) Natural sciences: Classification of substances, classification
of science, ion theory, radiation, electricity
1. which ones are correct?
1.Biological and non-biological substances both need oxygen for their existence
2.the human body consists only of biological substances ANS 1 and 2 are both correct
2. which ones are correct?
1.every living organism needs some non-biological substances for its exis- tence
2.all non-biological substances are found as minerals in the earth ANS 1 is correct
2 is incorrect .characteristics of life include.. ANS growth and metabolism
4.examples of synthetic substances are... ANS plastics and silicones
5.examples of organic biological substances are ANS carbohydrates and fats
6.examples of mineral substances are ANS paraffins and petroleum
7.matter is everything that... ANS occupies space and has weight
8.the three forms of matter are solids, liquids, and... ANS gases
9.what property does all matter have? ANS all matter has weight
10.condensation is the change of matter from... ANS gas to liquid
11.vaporization is the change of matter from.. ANS liquid to gas
12.melting is the change of matter from ANS a solid to a liquid
13.sublimation is the change of matter from ANS a solid to a gas
14.the alteration of the prorates of matter without the formation of any new substance is called. ANS a physical change
of science, ion theory, radiation, electricity
1. which ones are correct?
1.Biological and non-biological substances both need oxygen for their existence
2.the human body consists only of biological substances ANS 1 and 2 are both correct
2. which ones are correct?
1.every living organism needs some non-biological substances for its exis- tence
2.all non-biological substances are found as minerals in the earth ANS 1 is correct
2 is incorrect .characteristics of life include.. ANS growth and metabolism
4.examples of synthetic substances are... ANS plastics and silicones
5.examples of organic biological substances are ANS carbohydrates and fats
6.examples of mineral substances are ANS paraffins and petroleum
7.matter is everything that... ANS occupies space and has weight
8.the three forms of matter are solids, liquids, and... ANS gases
9.what property does all matter have? ANS all matter has weight
10.condensation is the change of matter from... ANS gas to liquid
11.vaporization is the change of matter from.. ANS liquid to gas
12.melting is the change of matter from ANS a solid to a liquid
13.sublimation is the change of matter from ANS a solid to a gas
14.the alteration of the prorates of matter without the formation of any new substance is called. ANS a physical change
