Photosynthesis is the process utilized by plants, algae, and certain bacteria to harness energy from sunlight and convert it into chemical energy stored in glucose, a type of sugar.
MCQs
1. Which organisms primarily perform photosynthesis?
A) Animals
B) Plants
C) Fungi
D) Bacteria
2. What is the main purpose of photosynthesis?
A) To produce oxygen for the planet
B) To break down organic waste
C) To convert light energy into chemical energy
D) To synthesize proteins from amino acids
3. What type of energy do plants use to perform photosynthesis?
A) Thermal energy
B) Mechanical energy
C) Light energy
D) Electrical energy
4. What is the primary chemical product of photosynthesis?
A) Oxygen
B) Carbon dioxide
C) Glucose
D) Water
You may like these:
Exploring Energy: Heat, Light, and Sound for Kindergarten
This topic introduces kids to heat, light, and sound energy through fun activities, helping them understand how these energies work in everyday life, like warmth from the sun or music from instruments.
A Brief Paragraph on ‘The Importance of Hydropower’
Hydropower is a clean, renewable energy source that uses flowing water to generate electricity. It reduces pollution, conserves resources, and provides sustainable energy for homes and industries worldwide.
The Impossibility of Perpetual Motion Machines
Perpetual motion machines cannot work because they violate the laws of thermodynamics. Energy losses due to friction and other factors make it impossible to create a machine that runs forever without input.
Principles of the Law of Conservation of Mass
The law states that matter cannot be created or destroyed in a closed system. It can only change forms, ensuring mass remains constant during chemical reactions or physical transformations.
Understanding the Functioning of Nuclear Power Plants
Nuclear power plants generate electricity by splitting atoms in a process called fission. This releases heat to produce steam, which spins turbines, providing a reliable but carefully managed energy source.