Understand the science behind daily life through questions covering health, energy, environment, inventions and natural phenomena.
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Which layer at the back of the eye contains photoreceptor cells called rods and cones that detect light?
Which part of the human eye is responsible for forming a sharp image by focusing light onto the retina?
Which term describes the process by which a gas changes directly to a solid without passing through the liquid state?
Which term describes the process of a solid changing directly to a gas without passing through the liquid state?
Which type of diet is most commonly recommended for preventing cardiovascular disease due to its emphasis on healthy fats?
Which common property of water describes water molecules being attracted to each other through hydrogen bonds?
Which common property of water is described as the tendency of water molecules to stick to other surfaces?
Which everyday device measures body temperature by detecting the infrared radiation emitted from the ear canal or forehead?
Which substance in a catalytic converter helps reduce harmful vehicle exhaust emissions?
Which term describes the minimum energy required to start a chemical reaction?
Which renewable energy source harnesses heat stored inside the Earth to generate electricity?
Which common process happens when iron is exposed to oxygen and moisture over time forming a reddish-brown coating?
Which everyday observation shows that white light is composed of multiple colours?
Which common kitchen appliance uses the principle of electromagnetic induction specifically to heat food through magnetic coupling?
Which everyday process causes wood to appear to shrink and blacken when burned but conserves matter overall?
Which type of teeth erupt last in humans typically between ages 17 and 25 and are commonly called wisdom teeth?
Which everyday observation shows that pressure in a gas increases as temperature increases at constant volume?
Which common household chemical is produced when electricity is passed through brine in a process called chlor-alkali?
Which common everyday substance is used to test for the presence of glucose in food and turns brick-red when heated?
Which common everyday substance is used to test for the presence of starch in food by turning blue-black?