Understand the science behind daily life through questions covering health, energy, environment, inventions and natural phenomena.
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Which phenomenon explains why sound travels faster in warm air than in cold air?
Which natural phenomenon occurs when the Earth's crust suddenly releases energy causing ground shaking?
Which phenomenon explains why the handles of pots and pans are made from plastic or wood rather than metal?
Which common observation explains why sound seems louder when heard through walls compared to open air over long distances?
Which scientific instrument is used to measure very small distances such as the diameter of a wire or thickness of a sheet?
Which common safety device in electrical circuits breaks the circuit when current exceeds a safe limit to prevent fires?
Which photoreceptor cells in the eye are responsible for vision in dim light and cannot distinguish colours?
Which photoreceptor cells in the eye are responsible for colour vision and function best in bright light?
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?