18 questions • MixedWhich is heavier: a liter of mercury or a liter of water? | |||||
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A liter of mercury | |||||
Which is older: the Great Pyramid of Giza or Stonehenge? | |||||
Stonehenge | |||||
Which is bigger in surface area: Russia or Pluto? | |||||
Pluto | |||||
Which is traditionally considered longer: the Amazon or the Nile River? | |||||
Which weighs more: a kilogram of feathers or a kilogram of steel? | |||||
Which is taller: the Eiffel Tower or the Empire State Building? | |||||
Which is colder: Mars or Antarctica? | |||||
Which country has more people: India or China? | |||||
Which is older: the moon or the Earth? | |||||
Which is deeper: Lake Baikal or the Mariana Trench? | |||||
Which travels faster: light or electricity in a wire? | |||||
Which is more massive: the Sun or all the planets in the solar system combined? | |||||
Which is hotter: the surface of the Sun or molten lava? | |||||
Which usually has a longer lifespan: a tortoise or a parrot? | |||||
Which is closer to Earth: the Moon or the International Space Station? | |||||
Which contains more bones: a shark or a human? | |||||
Which is heavier: gold or lead, by volume? | |||||
Which is more energy efficient: an LED bulb or an incandescent bulb? | |||||
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