Understand the science behind daily life through questions covering health, energy, environment, inventions and natural phenomena.
Questions are tracked as practiced when you open Show Answer & Explanation. Tracking stays only in this browser tab and no subject-test result is saved.
Which of the following is used in thermometers to measure temperature?
Which everyday phenomenon demonstrates the principle of capillary action in plants?
Which of the following is the main reason for the formation of dew on grass in the morning?
Which household disinfectant chemical is commonly used to purify drinking water in small quantities?
Which common food borne bacterial disease causes prolonged fever and is transmitted through contaminated food and water?
Which everyday device changes the voltage level of alternating current for transmission or use?
Which everyday device uses the principle of capillary action to function?
Which organ in the human body acts as a reservoir for blood and helps filter out old or damaged red blood cells?
Which everyday optical device uses a combination of lenses to magnify distant objects?
Which household water purification method uses ultraviolet light to kill bacteria and viruses?
Which soft tissue found inside bones is responsible for producing new blood cells?
Which device converts sound waves into electrical signals for recording or amplification?
Which blood vessels carry blood away from the heart?
Which cell organelle is responsible for protein synthesis within a cell?
Which everyday substance when mixed with water forms a solution that conducts electricity?
Which element is the primary component of natural gas used for cooking and heating?
Which natural process explains how mountains gradually wear down over long periods of time?
Which everyday phenomenon demonstrates that objects at higher temperature emit more thermal radiation?
Which common food item is fortified with iodine in many countries to prevent deficiency related disorders?
Which type of teeth erupt last in humans typically between ages 17 and 25 and are commonly called wisdom teeth?