Topic Details (Notes format)

What is the most abundant element in the universe?

What is the primary source of energy for life on Earth?

What type of energy is stored in a stretched rubber band?

Which organelle is known as the "powerhouse of the cell"?

Which gas is used in the process of welding?

What is the main purpose of stomata in plants?

What is the unit of frequency?

What is the smallest unit of life?

Which part of the human eye is responsible for focusing light on the retina?

Which is the largest planet in the Solar System?