Science Quiz

Advanced Science Quiz

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Test your knowledge of Science by taking our 15 questions in this Science quiz section. This advance quiz is for students of Class 8th and 9th and if you are 12th standard or college going student then it may be easy for you with little bit challenges. But let me tell you clearly guys no matter which standard questions these are, anyone can attempt this quiz and check his/her knowledge. This will really sharp your knowledge.

Advanced Science Quiz

Question 1
When air is blown from mouth into a test tube containing limewater, the limewater turns milky. This is due to the presence of
A
Water Vapour
B
Oxygen
C
Carbon dioxide
D
Carbon monoxide
Question 1 Explanation: 
Lime water is calcium hydroxide solution. On reacting with carbon dioxide it forms insoluble calcium carbonate which remains in water as a suspension rendering a milky white colour to it.
Question 2
Which one of the following is the 'energy currency' for cellular processes?
A
Glucose
B
ATP
C
ADP
D
Pyruvic acid
Question 2 Explanation: 
Adenosine 5'-triphosphate, or ATP, is the principal molecule for storing and transferring energy in cells. It is often referred to as the energy currency of the cell and can be compared to storing money in a bank.
Question 3
The voice of which of the following is likely to have minimum frequency?
A
Baby girl
B
Baby boy
C
A man
D
A woman
Question 3 Explanation: 
The voice of a man has a lower pitch. As the pitch of a man is low, which is proportional to the frequency of a sound, the man’s voice is of minimum frequency as compared with others.
Question 4
When a glass rod is rubbed with a piece of silk cloth, the rod___________________
A
And the cloth both acquire positive charge
B
Becomes positively charged, while the cloth has a negative charge
C
And the cloth both acquire negative charge
D
Becomes negatively charged, while the cloth has a positive charge
Question 4 Explanation: 
When glass rod is rubbed with silk clothes, glass quickly loses electrons, and silk takes electrons out of the glass rod. So after rubbing, the glass rod becomes positively charged and the silk gets negative charge. So, Silk cloths: negatively charged And, Glass rod: positively charged
Question 5
When we use biomass to generate electricity the conversion of energy is from ____________
A
Chemical to electrical energy
B
Kinetic to electrical energy
C
Nuclear to electrical energy
D
Muscular to electrical energy
Question 5 Explanation: 
1. Energy from the sun is transferred and stored in plants in the form of chemical energy. When the plants are cut or die, wood chips, straw and other plant matter is delivered to biogas plant. 2. When biomass is burnt, it releases energy in the form of heat. 3. The biomass plants burn wood or other forms of waste to generate steam. 4. The energy from the steam is directed via pipes to run turbines. 5. The steam rises up to run turbines that eventually produce electricity or generate heat for homes and industries.
Question 6
Megha observes that the water surface of the lake near her locality is gradually getting covered with algae. She is curious to know the cause for such algal bloom. Which of the following can be the cause for this?
A
Disposal of concrete and cement from the construction area of locality into the lake
B
Increased population of aquatic life in the lake
C
Disposal of pollutant having high level of organic matter into the lake
D
High rainfall
Question 6 Explanation: 
The development and proliferation of algal blooms likely result from a combination of environmental factors including available nutrients, temperature, sunlight, ecosystem disturbance (stable/mixing conditions, turbidity), hydrology (river flow and water storage levels) and the water chemistry (pH, conductivity, salinity, carbon availabilit).
Question 7
A farmer grows paddy crop in his field for two consequent years. After second year, the yield of paddy crop decreased markedly. Which agricultural practice should be implemented to increase the yield?
A
Field fallow
B
Manuring
C
Weeding
D
Crop rotation
Question 7 Explanation: 
Crop rotation is the practice of planting different crops sequentially on the same plot of land to improve soil health, optimize nutrients in the soil, and combat pest and weed pressure.
Question 8
What happens to the inertia of an object when its velocity is doubled ?
A
The object’s inertia becomes 2 times lesser
B
The object’s inertia becomes 2 times greater
C
The object’s inertia becomes 4 times greater
D
The object’s inertia remains the same.
Question 8 Explanation: 
Inertia is not dependent on the velocity of the body. It is dependent on the mass contained in the body. If the velocity is doubled the momentum of the body is doubled. To stop such a body double force will be required to stop it
Question 9
In a living cell the fluid present inside the nucleus called as
A
Cytoplasm
B
Endoplasm
C
Protoplasm
D
Nucleoplasm
Question 9 Explanation: 
Similar to the cytoplasm of a cell, the nucleus contains nucleoplasm, also known as karyoplasm, or nucleus sap. The nucleoplasm is a type of protoplasm, and is enveloped by the nuclear envelope (also known as the nuclear membrane). The nucleoplasm includes the chromosomes and nucleolus.
Question 10
Under which condition stated below, the six-carbon glucose molecule is broken down into three-carbon molecules pyruvate and lactic acid?
A
aerobic condition in muscle cells
B
anaerobic condition in yeast cells
C
aerobic condition in mitochondria
D
anaerobic condition in muscle cells
Question 10 Explanation: 
It is a type of anaerobic respiration occurs in muscles during lack of oxygen
Question 11
In a highly pesticide polluted pond, which of the following aquatic organisms will have the maximum amount of pesticide per gram of body mass?
A
Lotus
B
Fishes
C
Spirogyra
D
Zooplanktons
Question 11 Explanation: 
It is an example of 'biomagnification' in which fishes are at highest trophic level, so they will accumulate maximum amount of pesticides.
Question 12
Raw banana has bitter taste, while ripe banana has sweet taste. It happens because of the conversion of
A
starch to sugar
B
sucrose to fructose
C
amino acids to sugar
D
amino acids to protein
Question 12 Explanation: 
Raw banana has bitter taste due to the presence of starch, later on after ripening this starch will convert in sugar, which will provide sweet taste.
Question 13
In the following plants sexual reproduction involves several events beginning with the bud and ending in a fruit. These events are arranged in four different combinations. Select the combination that has the correct sequence of events.
A
Embryo, zygote, gametes, fertilization
B
Gametes, fertilization, zygote, embryo
C
Fertilization, zygote, gametes, embryo
D
Gametes, zygote, embryo, fertilization
Question 13 Explanation: 
In flowering plants order of sexual reproduction is Gametes----->Fertilization------>Zygote-----> Embryo
Question 14
Iodine is used to test for what substance found in potatoes?
A
Glucose
B
Starch
C
Protiens
D
Fat
Question 14 Explanation: 
In the presence of starch, iodine turns a blue/black colour. It is possible to distinguish starch from glucose (and other carbohydrates) using this iodine solution test. For example, if iodine is added to a peeled potato then it will turn black.
Question 15
Which of the following does not involve a physical change of state of a substance?
A
Recovering water from the sea
B
Fractional distillation of crude oil
C
Hydrogenation of vegetable oils to form solid margarine
D
Formation of white vapours when dry ice is left at room temperature
Question 15 Explanation: 
Conversion of vegetable oils into margarine is not simply a change of state from liquid to solid, but it involves a chemical reaction with hydrogen to convert the unsaturated oils to saturated oils.
There are 15 questions to complete.

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