U.S. History
This document, signed in 1776, declared the American colonies' independence from Britain.
What is the Declaration of Independence?
This iconic statue, a gift from France, stands at the entrance of New York Harbor.
What is the Statue of Liberty?
This chemical element, symbolized by "O," is essential for human respiration and makes up about 21% of Earth's atmosphere.
What is oxygen?
This company, founded by Steve Jobs, Steve Wozniak, and Ronald Wayne in 1976, is known for products like the iPhone and MacBook.
What is Apple?
This fruit, often mistaken for a vegetable, is commonly used in salads and is known for its red color and juicy texture.
What is a tomato?
This U.S. president delivered the Gettysburg Address during the Civil War in 1863.
Who is Abraham Lincoln?
This ancient stone circle in England, believed to have been built between 3000 and 2000 BC, is a UNESCO World Heritage site.
What is Stonehenge?
This process in plants, in which light energy is converted into chemical energy, is crucial for photosynthesis and occurs in the chloroplasts.
What is photosynthesis?
This social media platform, launched in 2004 by Mark Zuckerberg, began as a college networking site and is now one of the largest in the world.
What is Facebook?
This Italian dish, traditionally made with a thin crust, tomato sauce, cheese, and various toppings, is popular worldwide.
What is pizza?
In 1803, the U.S. bought a large territory from France, doubling the size of the country. This is known as the blank Purchase.
What is the Louisiana Purchase?
This famous landmark in India, built in the 17th century, is a symbol of love and is a UNESCO World Heritage site.
What is the Taj Mahal?
This planet, known for its red appearance, is the fourth from the Sun in our solar system and is sometimes called the "Red Planet."
What is Mars?
This open-source operating system, first released in 1991 by Linus Torvalds, is known for its use in servers, smartphones, and various devices worldwide.
What is Linux?
This type of nut is the main ingredient in a popular spread that is often paired with chocolate and used on bread or crackers.
What is hazelnut?
The U.S. acquired this territory from Spain following the Spanish-American War in 1898.
What is Puerto Rico?
This ancient city, famous for its rock-cut architecture and water systems, was the capital of the Nabataean Kingdom and is now a UNESCO World Heritage site in Jordan.
What is Petra?
This layer of Earth's atmosphere, located between 10 and 50 kilometers above the surface, is where most of the ozone layer is found, protecting the Earth from ultraviolet radiation.
What is the stratosphere?
This technology, often associated with cryptocurrencies, is a decentralized digital ledger that records transactions across many computers.
What is blockchain?
This rare, expensive spice is derived from the dried stigmas of a flower and is used to flavor dishes like risotto and paella.
What is saffron?
This 1846 agreement between the U.S. and Great Britain set the border between the U.S. and Canada at the 49th parallel.
What is the Oregon Treaty?
This ancient structure in Greece, built in the 5th century BC, was once the temple dedicated to the goddess Athena and is located on the Acropolis.
What is the Parthenon?
This term refers to the curve at the surface of a liquid, often seen in a graduated cylinder, which occurs due to surface tension.
What is the meniscus?
This term refers to the process of transforming physical data, such as sound or light, into digital signals that computers can process and store.
What is digitization?
This type of French pastry, made with layers of puff pastry and filled with cream, is named after a French term meaning "lightning."
What is an éclair?