Matter
Even though it can look empty, this “something” is present anywhere mass occupies volume—unless it’s actually nothing, in which case it isn’t this at all.
What is matter?
Known as “King James,” this NBA superstar has played for the Cavaliers, Heat, and Lakers.
Who is LeBron James?
Among the Cretaceous megafauna whose diagnostic cranial architecture has been historically treated as taxonomically stable, this iconic genus was revealed—after histological analyses of its frill and horn cores—to have exhibited ontogenetically driven cranial reconfiguration so extensive that many specimens once classified as separate species were actually developmental waypoints within a single life cycle.
What is Triceratops?
This superhero’s first comic appearance was in Action Comics #1 in 1938, marking the beginning of the Golden Age of Comics.
Who is Superman?
On July 20, 1969, Neil Armstrong took “one small step for man” during this historic mission.
→ What is the Apollo 11 Moon landing?
In this state, particles vibrate but rarely roam, maintaining shape unless—ironically—they don’t, at which point the state has changed.
What is a solid?
This Olympic sprinter from Jamaica holds world records in the 100m and 200m.
Who is Usain Bolt?
He was the first President of the United States, serving from 1789 to 1797.
Who is George Washington?
This Marvel hero founded the X-Force as a more aggressive alternative to the X-Men, though he’s better known for breaking the fourth wall.
Who is Deadpool?
This infamous ocean liner sank in 1912 after hitting an iceberg on its maiden voyage.
What is the sinking of the Titanic?
It’s the process by which a substance escapes its liquid bonds and joins the gas world without needing to boil over—though boiling works too.
What is evaporation or vaporization?
Often called “The Great One,” this NHL legend scored more points than any other player in league history.
Who is Wayne Gretzky?
This 1803 land deal with France doubled the size of the United States.
What is the Louisiana Purchase?
This DC hero, real name J’onn J’onzz, is one of the founding members of the Justice League and is the last survivor of his species.
Who is Martian Manhunter?
On December 7, 1941, this surprise attack by Japan led the United States to enter World War II.
What is the attack on Pearl Harbor?
When iron unites with oxygen in a slow-motion reaction that can take years, the result is this kind of change—one you can’t simply “un-rust” physically.
What is a chemical change?
This tennis star holds 23 Grand Slam singles titles, the most of any player in the Open Era.
Who is Serena Williams?
This 1863 order from President Abraham Lincoln declared enslaved people in Confederate states to be free.
What is the Emancipation Proclamation?
Created by Jack Kirby, this cosmic Marvel hero wields the Power Cosmic and travels the universe as the herald of Galactus.
Who is the Silver Surfer?
Beginning in 1347, this devastating pandemic killed an estimated 25–50 million people across Europe.
What is the Black Death?
Though it hides behind a simple fraction, this property decides whether an object sinks, floats, or merely pretends to—because even a material heavier than water can stay afloat if its overall value of this quantity drops below the liquid’s. Name the property that cares nothing for shape, yet is fooled by empty space.
What is density?
Known worldwide for his soccer brilliance, this Argentine forward won the 2022 FIFA World Cup and is often compared to Pelé and Maradona.
Who is Lionel Messi?
This 1898 conflict resulted in the U.S. gaining territories such as Puerto Rico, Guam, and the Philippines.
What is the Spanish–American War?
This DC hero, born on the planet Colu, increases his intelligence to superhuman levels using a 12th-level intellect and later becomes a key member of the Legion of Super-Heroes.
Who is Brainiac 5?
This 1989 protest movement in Beijing ended in a military crackdown after weeks of demonstrations in Tiananmen Square.
What is the Tiananmen Square crackdown (or protests)?