This desert is the largest hot desert on Earth, covering much of North Africa
Sahara Desert
The process plants use to make food from sunlight.
Photosynthesis
In 1969, this NASA mission first landed humans on the Moon.
Apollo 11 Moon Landing
This Greek mathematician and inventor famously said, “Eureka!” after discovering a method to measure volume.
Archimedes
This English scientist formulated the laws of motion and the law of universal gravitation.
Isaac Newton
This river flows through London
Thames
This force keeps planets orbiting the Sun.
Gravity
This famous ship sank on its maiden voyage in 1912.
Sinking of the RMS Titanic?
This physicist is considered the “father of the atomic bomb.”
J. Robert Oppenheimer
This Polish astronomer proposed that the Earth orbits the Sun, not the other way around.
Nicolaus Copernicus
This river forms part of the border between the United States and Mexico.
The Rio Grande
This gas makes up about 78% of Earth’s atmosphere.
Nitrogen
This revolution began in 1789 and led to the overthrow of the monarchy.
The French Revolution
This French chemist is considered the father of modern chemistry and helped develop the law of conservation of mass.
Antoine Lavoisier
This Italian scientist improved the telescope and supported the heliocentric theory.
Galileo Galilei
This plateau in Asia is often called “the Roof of the World.”
the Tibetan Plateau
This part of the cell contains DNA and controls cell activities.
Cell Nucleus
This famous speech by Martin Luther King Jr. was delivered in Washington, D.C., in 1963.
Response: What is ?
The'I Have a Dream speech'
This American scientist and inventor held over 1,000 patents, including the phonograph and improvements to the light bulb.
Thomas Edison
This Serbian-American inventor helped develop the modern alternating current electrical system.
Nikola Tesla
This mountain in Tanzania is the highest peak in Africa.
Mount Kilimanjaro
The center of our solar system.
The Sun
This explorer completed the first circumnavigation of the Earth, though he died during the journey.
Ferdinand Magellan
This American biologist helped discover the structure of DNA along with Francis Crick.
James Watson
This scientist discovered penicillin in 1928.
Alexander Fleming