Which organ produces the hormone adrenaline that prepares the body for fight or flight response?

Which planet is the largest in our solar system?

Which everyday process converts mechanical energy into electrical energy in a bicycle dynamo?

Which layer of the skin provides insulation and stores energy as fat?

Which common substance has the chemical formula H2O2?

Which sense organ contains the olfactory receptors responsible for detecting smells?

Which everyday material is used as an X-ray absorber to protect the body during medical scans?

Which phenomenon causes a needle to deflect when placed near a current-carrying wire?

Which gas is used to fill incandescent light bulb to prevent the filament from burning?

Which everyday item uses the principle of total internal reflection to transmit data as light signals?

Which everyday process is used when a doctor listens to heartbeats through a stethoscope?