List of top Science Questions

Mention the gland and the hormone secreted by it in scary situation in human beings.
Describe the structure of a Neuron and explain Reflex Action.
Write the chemical names, formulas, and uses of Baking Soda, Washing Soda, and Bleaching Powder.
Describe the process of Photosynthesis and write its balanced chemical equation.
Differentiate between Aerobic and Anaerobic respiration.
Explain the Reactivity Series of metals and its importance in extraction.
Define Oxidation and Reduction with suitable examples.
State Ohm’s Law and describe its V-I graph.
Explain Myopia and Hypermetropia with their causes and correction methods.
State Fleming’s Left-Hand Rule and explain the principle of an electric motor.
State the Laws of Reflection and Laws of Refraction of light.
Define Power of a Lens and state its S.I. unit.
How is the sex of a child determined in human beings?
What is Biological Magnification, and how does it affect different trophic levels?
What is the importance of DNA copying in reproduction?
Describe the process of Double Fertilization in flowering plants.
What is Transpiration, and how does it help in the upward movement of water in plants?
Explain how gaseous exchange occurs in plants through stomata and lenticels.
Distinguish between Sexual and Asexual reproduction with examples.
Explain the role of Thyroxin and Insulin hormones in the human body.
Describe the mechanism of Respiration in humans, including the role of alveoli.
Define Reflex Action and explain the pathway of a Reflex Arc with an example.
Explain the neutralisation reaction with an example and its utility in daily life.
What are amphoteric oxides? Give two examples.
Differentiate between metals and non-metals based on their chemical properties.