Water expands when it does this, which is why ice floats.
What is freezes?
This sportswear company takes its name from the Greek goddess of victory.
What is Nike?
This residence in Washington, D.C., has been home to U.S. presidents since 1800.
What is the White House?
Isaac Newton is famously associated with developing ideas about this force after observing a falling apple.
What is gravity?
This Canadian athlete became famous for his Marathon of Hope.
Who is Terry Fox?
Lightning heats the surrounding air so rapidly that it creates this sound.
What is thunder?
This car company was named after the founder's family name and became famous for the Model T.
What is Ford?
This London fortress has served as a palace, prison, and treasury.
What is the Tower of London?
James Watson and Francis Crick are associated with identifying the double-helix structure of this molecule.
What is DNA?
This Canadian physician helped create a portable artificial kidney and contributed to the development of this medical treatment.
What is dialysis?
This force causes objects moving through air to slow down.
What is air resistance?
This technology company began in a garage and was founded by Steve Jobs and Steve Wozniak.
What is Apple?
This domed building in Washington, D.C., houses the U.S. Congress.
What is the Capitol?
Dmitri Mendeleev organized chemical elements into an early version of this.
What is the periodic table?
This Canadian technology is known for producing large-format motion pictures.
What is IMAX?
Warm air tends to rise because it is generally this compared with cooler air.
What is less dense?
This photography company created the slogan “You press the button, we do the rest.”
What is Kodak?
This palace in France became closely associated with King Louis XIV.
What is Versailles?
This scientist used a telescope to observe moons orbiting Jupiter.
Who is Galileo Galilei?
The Canadarm was developed for use aboard this American spacecraft program.
What is the Space Shuttle?
This principle explains why an object immersed in fluid experiences an upward buoyant force.
What is Archimedes' principle?
This luxury automobile brand was formed from the names of Charles Rolls and Henry Royce.
What is Rolls-Royce?
This ancient structure in Istanbul began as a cathedral, became a mosque, then a museum, and is again a mosque.
What is Hagia Sophia?
Henri Becquerel's work with uranium salts led to the discovery of this phenomenon.
What is radioactivity?
This Canadian scientist won a Nobel Prize for work on stem cells with Ernest McCulloch.
Who is James Till?