List of top Science Questions asked in UP Board

Describe Regeneration and Budding with diagram.

(i) What is a neutralisation reaction? Write its two examples. 
(ii) Explain roasting with an example. 

Describe the structure and function of nephron in humans.
Describe the structure of the human heart with the help of a labelled longitudinal section diagram of the human heart.
Draw a labelled diagram of structure of Neuron and describe its functions.
Describe the female reproductive system of human beings with a diagram.
Complete the following chemical equation:
CH3COOH + C2H5OH →Conc. H2SO4 ________ + H2O
Describe the structure and function of the human brain in brief.
Write short notes on the following:
(a) Vegetative propagation
(b) Budding
Budding:
Describe the food chain and food web with examples.
What is ozone and how does it affect any ecosystem?
Describe energy flow in an ecosystem with diagram.
Write the chemical equations for two chemical properties of ethanol.
Write short notes on the following:
(i) pH value
(ii) Oxidation reaction
(iii) Combustion reaction
Three wires A, B and C are emerging out from the main source of a house. What will be the name, function, and colour of the insulation for each wire?
Explain the following:
(a) Double decomposition reaction
(b) Neutralization reaction
Write the chemical equations for two chemical properties of acetic acid.
Explain corrosion by giving example.
State the following laws with the help of labelled diagram. With the help of the following, the direction of which physical quantity can be known?
(i) Fleming’s Left Hand Rule
(ii) Right Hand Thumb Rule
Write the use of bleaching powder in purification of water.
Write the chemical equation for obtaining gypsum from plaster of Paris.
What are the defects of vision? Write down the names of the lenses used for the correction of vision defect of three persons P, Q, and R if —
(i) \( P \) can see only near objects clearly but cannot see far objects.
(ii) \( Q \) can see only far objects clearly but cannot see near objects.
(iii) \( R \) can neither see far objects nor near objects clearly.
Example of regeneration is —
Natural ecosystem is —