Cidesco Questions
Biological and non-biological substances both need oxygen for their existence (true or
false) - Answers -False
The human body consists only of biological substances (true or false) - Answers -False
Every living organism needs some non-biological substances for its existence (true or
false) - Answers -True
All non-biological substances are found as minerals in the earth (true or false) -
Answers -False
Characteristics of life include - Answers -growth and metabolism
Examples of synthetic substances are.... - Answers -plastics and silicones
Examples of organic biological substances are.... - Answers -carbohydrates and fats
Examples of mineral substances are.... - Answers -paraffins and petroleum
Everything that occupies space and has weight is called.. - Answers -matter
Three forms of matter... - Answers -solids, liquids, gases
What property does all matter have? - Answers -all matter has weight
Condensation is the change of matter from.... - Answers -gas to a liquid
Vaporization is the change of matter from... - Answers -liquid to gas
Melting is the change of matter from... - Answers -solid to liquid
Sublimation is the change of matter from.... - Answers -solid to gas
Condensation is the change of matter from... - Answers -vapor to liquid
The alteration of the properties of matter without the formation of any new substance is
called a.... - Answers -physical change
The immediate change of a solid into a vapor is called... - Answers -sublimation
An example of a singe-celled cellular organism is... - Answers -bacterium
, A micro-organism is the smallest part of the human body (true or false) - Answers -false
All micro-organisms need nutrients for their existence (true or false) - Answers -correct
Examples of bacteria are... - Answers -bacilli and cocci
Science deals mainly with... - Answers -physics and chemistry
The study of the structure of the body - Answers -anatomy
The study of the functions of living organisms - Answers -physiology
Anatomy is a very important science in the field of biology. ( true or false) - Answers -
true
Anatomy is the science which deals with the functions of the human body. (true or false)
- Answers -false
Physiology is a very important science in the field of biology. (true or false) - Answers -
true
Science of chemistry - Answers -The alteration of the structure of molecules
Chemical reactions only take place outside and not inside a living organism. (true or
false) - Answers -false
The structure of molecules change during chemical reactions. - Answers -true
What does the field of physics include? - Answers -heat and electricity, sound
Negatively charged atom - Answers -anion
A negatively charged chloride atom (CI-) - Answers -anion
A positively charged sodium atom (Na+) - Answers -cation
A substance which , dissolved in water, splits into ions - Answers -electrolyte
Examples of electrolytes are... - Answers -acids, salts
Why is an acid an electrolyte? - Answers -it can conduct an electric current
Example of an inorganic acid is... - Answers -sulphuric acid
An alkali must contain... - Answers -metal atoms and hydroxyl groups (OH)
Biological and non-biological substances both need oxygen for their existence (true or
false) - Answers -False
The human body consists only of biological substances (true or false) - Answers -False
Every living organism needs some non-biological substances for its existence (true or
false) - Answers -True
All non-biological substances are found as minerals in the earth (true or false) -
Answers -False
Characteristics of life include - Answers -growth and metabolism
Examples of synthetic substances are.... - Answers -plastics and silicones
Examples of organic biological substances are.... - Answers -carbohydrates and fats
Examples of mineral substances are.... - Answers -paraffins and petroleum
Everything that occupies space and has weight is called.. - Answers -matter
Three forms of matter... - Answers -solids, liquids, gases
What property does all matter have? - Answers -all matter has weight
Condensation is the change of matter from.... - Answers -gas to a liquid
Vaporization is the change of matter from... - Answers -liquid to gas
Melting is the change of matter from... - Answers -solid to liquid
Sublimation is the change of matter from.... - Answers -solid to gas
Condensation is the change of matter from... - Answers -vapor to liquid
The alteration of the properties of matter without the formation of any new substance is
called a.... - Answers -physical change
The immediate change of a solid into a vapor is called... - Answers -sublimation
An example of a singe-celled cellular organism is... - Answers -bacterium
, A micro-organism is the smallest part of the human body (true or false) - Answers -false
All micro-organisms need nutrients for their existence (true or false) - Answers -correct
Examples of bacteria are... - Answers -bacilli and cocci
Science deals mainly with... - Answers -physics and chemistry
The study of the structure of the body - Answers -anatomy
The study of the functions of living organisms - Answers -physiology
Anatomy is a very important science in the field of biology. ( true or false) - Answers -
true
Anatomy is the science which deals with the functions of the human body. (true or false)
- Answers -false
Physiology is a very important science in the field of biology. (true or false) - Answers -
true
Science of chemistry - Answers -The alteration of the structure of molecules
Chemical reactions only take place outside and not inside a living organism. (true or
false) - Answers -false
The structure of molecules change during chemical reactions. - Answers -true
What does the field of physics include? - Answers -heat and electricity, sound
Negatively charged atom - Answers -anion
A negatively charged chloride atom (CI-) - Answers -anion
A positively charged sodium atom (Na+) - Answers -cation
A substance which , dissolved in water, splits into ions - Answers -electrolyte
Examples of electrolytes are... - Answers -acids, salts
Why is an acid an electrolyte? - Answers -it can conduct an electric current
Example of an inorganic acid is... - Answers -sulphuric acid
An alkali must contain... - Answers -metal atoms and hydroxyl groups (OH)
