This is the closest star to Earth.
What is the Sun?
This American inventor is credited with the light bulb.
Who is Thomas Edison?
This sport uses a bat, a ball, and bases.
What is baseball?
These tall plants are common in tropical rainforests and have large leaves.
What are palm trees?
This shape has exactly three sides.
What is a triangle?
This planet is famous for its rings.
What is Saturn?
Alexander Fleming discovered this antibiotic in 1928.
What is penicillin?
In chess, the only piece that can “jump” over others.
What is the knight?
The process by which plants make their own food from sunlight.
What is photosynthesis?
What 5‑letter word becomes shorter when you add two letters?
What is short?
The Milky Way is this type of galaxy.
What is a spiral galaxy?
This device, invented by Gutenberg, changed how books were made.
What is the printing press?
This country has won the most FIFA World Cups.
What is Brazil?
The world’s largest coral reef system.
What is the Great Barrier Reef?
A palindrome reads the same forward and backward. This is one example.
What is “racecar”?
This force keeps planets in orbit around the Sun.
What is gravity?
Marie Curie discovered two radioactive elements: polonium and this.
What is radium?
The Olympic Games began in this ancient civilization.
What is Ancient Greece?
These animals, like salmon, return to their birthplace to reproduce.
What are migratory species?
If you rearrange the letters in “listen,” you get this word meaning to stay quiet.
What is “silent”?
This is the name of the point where nothing can escape a black hole.
What is the event horizon?
This mathematician invented calculus independently at the same time as Isaac Newton.
Who is Gottfried Leibniz?
In poker, this hand is made up of five consecutive cards of the same suit.
What is a straight flush?
This biome is characterized by frozen ground known as permafrost.
What is the tundra?
This term refers to a puzzle where you fill in words based on numbered clues.
What is a crossword?