Why can fish obtain oxygen while submerged in water?
A) Oxygen is dissolved in water and absorbed by gills B) Water contains no gas C) Fish split all water […]
Every Day Science, Scientific Reasons
Scientific Reasons
Every Day Science, Scientific Reasons
Why can fog make headlights produce glare?
A) Tiny droplets scatter light back toward the observer B) We see changing portions of its sunlit half C) Refraction […]
Every Day Science, Scientific Reasons
Why can ice on a lake insulate water below?
A) The surface ice slows heat loss B) Ice produces geothermal energy C) The water becomes vacuum D) No heat […]
Every Day Science, Scientific Reasons
Why can salt be recovered from saltwater by evaporation?
A) Soap molecules surround oily material and disperse it in water B) It spreads the required work over a longer […]
Every Day Science, Scientific Reasons
Why can sand be removed from water with filter paper?
A) Sand grains are too large to pass through the pores B) An acid-base reaction releases carbon dioxide C) Different […]
Every Day Science, Scientific Reasons
Why can soap remove greasy dirt from skin?
A) It spreads the required work over a longer path B) Warm air expands and becomes less dense than cooler […]
Every Day Science, Scientific Reasons
Why can sound travel through a wall even when no air passage is open?
A) Solid material can carry mechanical vibrations B) Iron is strongly ferromagnetic while wood is not C) Greater length and […]
Every Day Science, Scientific Reasons
Why can sweating cool a runner?
A) Some surface molecules have enough energy to escape B) Airborne water vapor condenses on the cool glass C) Dark […]
Every Day Science, Scientific Reasons
Why can water in an open shallow dish disappear faster than water in a narrow glass?
A) The shallow dish has no gravity B) Its larger exposed surface increases evaporation C) Water turns to oxygen D) […]
Every Day Science, Scientific Reasons
Why do bubbles expand as they rise from deep water?
A) Gravity becomes zero B) Water turns into metal C) Surrounding water pressure decreases D) Bubble temperature must become zero […]