List of top Science Questions asked in Bihar Board X

Why does continuous running cause cramps to a person’s muscles?
What should be done for water conservation and water management?
What are the benefits of a dam?
What is the importance of blood platelets?
Write four main characteristics of living beings.
Write the names of some excretory substances of plants.
Why does the colour of the solution change when a piece of iron is added to copper sulphate solution?
Why is sodium metal kept immersed in kerosene?
What are acids? Give any two examples. Explain the effect of an acid on an indicator.
Which metallic property does graphite exhibit despite being a non-metal?
Why is it necessary to keep the plaster of Paris away from moisture? Explain.
What are aliphatic compounds?
Describe a method to find the focal length of a convex lens.
What do you understand by homologous series? Write with examples.
What is fossil fuel? Write with example.
What is nuclear fusion?
Why does the coin placed in water appear raised?
How does an electromagnet work?
What is electric current? Write its equation and unit.
Describe Oersted's experiment to show that a magnetic field is produced around a current carrying conductor wire.
The male reproductive organ of a flower is called
Testosterone is secreted by
Which is the largest part of the human brain?
Hormone that stops cell division in plants is called
What is light beam? How many types of it are there?