Water Knowledge Quiz

Froggy Jumps

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Test your water science know-how.

Patricia Ichukia

Kenya

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Water Knowledge Quiz


Froggy Jumps Water Knowledge QuizVersion en ligne Test your water science know-how. par Patricia Ichukia 1 What is the chemical formula for water? a O2H b H2O c HO2 2 At what temperature does water boil at sea level (100°C) in Celsius? a 100 b 90 c 110 3 What property explains why water beads up on a wax surface? a Low boiling point b Low contact angle due to surface tension c High viscosity 4 Which phase change occurs when water vapor becomes liquid? a Evaporation b Sublimation c Condensation 5 Which statement about pure water is true? a It has a pH around 7 at room temperature b It is always acidic c It is always basic 6 What term describes water's ability to stick to other substances? a Solubility b Adhesion c Cohesion 7 Which water property makes it an excellent solvent for many compounds? a Polarity b Density c Viscosity 8 What is the most abundant dissolved salt in seawater by mass? a Sodium chloride b Calcium carbonate c Magnesium sulfate 9 Which process removes salts from seawater to produce freshwater? a Condensation b Desalination c Distillation 10 Water has its maximum density at around which temperature (in °C)? a 100 b 0 c 4