This phase of matter is characterized by particles moving freely, filling any container they are in.
What is gas?
This general-turned-president led the Allied forces during World War II before serving two terms as president from 1953 to 1961.
Who is Dwight D. Eisenhower?
This bear species is the largest land carnivore in the world.
What is the polar bear?
This superhero film, released in 2008 and starring Robert Downey Jr., kicked off the Marvel Cinematic Universe.
What is Iron Man?
This annual tennis tournament, held in London, is the oldest and most prestigious in the world.
What is Wimbledon?
This planet, named after the Roman god of war, is the fourth planet from the sun.
What is Mars?
This president's New Deal programs helped lift the U.S. out of the Great Depression.
Who is Franklin D. Roosevelt?
This marine animal, often referred to as a killer whale, is actually a member of this family.
What is the dolphin family?
This 1994 Quentin Tarantino film became a cult classic with its nonlinear storytelling and iconic dialogue.
What is Pulp Fiction?
This golfer holds the record for the most major championship wins, with 18 titles.
Who is Jack Nicklaus?
This particle, found in the nucleus of an atom, has no electrical charge.
What is a neutron?
This president was responsible for the "Square Deal" and was known for his conservation efforts, establishing national parks and forests.
Who is Theodore Roosevelt?
The only mammal capable of true flight.
What is a bat?
This 1972 film, directed by Francis Ford Coppola, follows the Corleone family and is widely considered one of the greatest films ever made.
What is The Godfather?
This U.S. gymnast became the first woman to win four consecutive all-around titles at the World Championships.
Who is Simone Biles?
The element identified as Na in the Periodic table.
What is Sodium?
He was the first U.S. president to be assassinated.
Who is Abraham Lincoln?
This insect is known for its incredible strength, able to lift objects up to 50 times its own body weight.
What is the ant?
This 1982 sci-fi classic, directed by Ridley Scott and starring Harrison Ford, explores themes of artificial intelligence and dystopian futures.
What is Blade Runner?
This American swimmer won eight gold medals in the 2008 Beijing Olympics, setting a new record for the most golds in a single Olympic Games.
Who is Michael Phelps?
This process involves the splitting of a heavy atomic nucleus into two lighter nuclei, releasing a large amount of energy.
What is nuclear fission?
He was the first U.S. president to be impeached, though he was acquitted in the Senate by one vote.
Who is Andrew Johnson?
This large African mammal, also called a "river horse," spends much of its time submerged in water to stay cool.
What is a hippopotamus ?
This 2003 fantasy film, directed by Peter Jackson, won 11 Academy Awards and is the final part of the Lord of the Rings trilogy.
What is The Lord of the Rings: The Return of the King?
This sprinter, often called the fastest man alive, holds the world record in the 100-meter dash.
Who is Usain Bolt?