Electric Charge How does a plastic comb attract paper?
Nuclear fusion Why is nuclear fusion not used to generate electricity?
Sound Why do we hear echoes?
Concave Mirror Why is your reflection upside down on a spoon?
Buoyancy Can you drown in the dead sea?
Light and Sound Why do we see lightning before thunder?
Heat transfer Why do we use a black umbrella in summer?
Heat transfer Why are cloudy nights warmer than clear nights?
Heat Why is a laboratory thermometer not used to check body temperature?
Specific heat of water Why is water used in hot water bags?