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- LEVEL 2
- ABACUS
- The ancients used this tool to calculate. Can you find it?
- It is better than counting on your fingers.
- LEVEL 3
- ANESTHES
- This 19th Century invention allowed painless surgery. Can you find it?
- A dentist was the first to publicize this method.
- LEVEL 2
- ANTARCTI
- He was the first American to explore this frozen continent. Can you find him?
- He explored a continent in the southern hemisphere.
- LEVEL 2
- ANTJANSK
- This man opened a radio window on the universe. Can you find him?
- He worked for the telephone company.
- LEVEL 1
- AQUEDUCT
- This early invention brought water to thirsty cities. Can you find it?
- Sometimes it came over bridges.
- LEVEL 2
- ARABIC
- Be glad I found these numerals. Can you find them?
- They are easier than the Roman ones.
- LEVEL 1
- ROBOT
- R2D2 and C3PO are examples of this invention. Can you find it?
- Isaac Asimov wrote about them.
- LEVEL 2
- MAGELLAN
- Can you find the great Portuguese navigator who circumnavigated the world?
- There is a strait named after him.
- LEVEL 1
- MAGNET
- I always point north when I'm free to move. Can you find me?
- Scouts use them in the woods.
- LEVEL 3
- MARS
- This was the first planet whose distance was accurately calculated. Can you find it?
- It is known as the Red Planet.
- LEVEL 3
- ALGEBRA
- It lets you write equations with letters instead of just numbers. Can you find it?
- x is the unknown.
- LEVEL 1
- AMPHORA
- It is a clay container you can put water in or cook in. Can you find it?
- It was a very early invention.
- LEVEL 2
- ARCH
- It is a strong, round-topped shape you can build with stones. Can you find it?
- It has often been used to build bridges.
- LEVEL 1
- ASSEMBLY
- He invented the automobile assembly line. Can you find him?
- You can drive a car with his name on it.
- LEVEL 3
- ATOMBOMB
- It is more powerful than a nuclear fission bomb. Can you find it?
- It uses the most abundant atom in the universe.
- LEVEL 1
- AURORA
- Where does a scout's compass really point to? Can you find it?
- It's not the true north pole.
- LEVEL 2
- BACTERIA
- A Dutchman was the first to look at these in a drop of water. Can you find them?
- They often cause disease.
- LEVEL 2
- BANG
- Scientists say the universe began with this explosion. Can you find it?
- It was a biggie!
- LEVEL 2
- BATTERY
- This electrical storage device was invented by an Italian scientist named Volta. Can you find it?
- You will find them in flashlights.
- LEVEL 2
- BAYDOORS
- It takes astronauts into orbit nowadays. Can you find it?
- It has wings and rockets.
- LEVEL 1
- BIKE
- A British blacksmith invented a vehicle that many children ride today. Can you find it?
- It has two wheels.
- LEVEL 3
- BRAINWAV
- It detects the electrical waves put out by your brain. Can you find it?
- It's similar to a lie detector.
- LEVEL 3
- BREAD
- Bread and beer have this in common. Can you find it?
- Yeast makes it happen.
- LEVEL 2
- CALCULAT
- Texas Instruments developed this small electronic gadget to do math. Can you find it?
- You could put it in your pocket.
- LEVEL 2
- CANNON
- The Chinese invented it and the Europeans put it into cannons. Can you find it?
- It's also in bullet shells.
- LEVEL 3
- CATAPULT
- This machine was once used to fling weights at an enemy. Can you find it?
- It was used to knock down walls in ancient times.
- LEVEL 1
- CLOCK
- It was the first mechanical device to tell time. Can you find it?
- It wakes you up in the morning.
- LEVEL 3
- COMET
- Edmond Halley was the first to understand this surprise in the sky. Can you find it?
- It has a tail.
- LEVEL 3
- COMPUTER
- A German mathematician figured out how to count as if we had two fingers instead of ten. Can you find this system?
- It's the basis of modern computers.
- LEVEL 2
- COPTER
- This machine allows pilots to fly vertically. Can you find it?
- Police and traffic reporters use them.
- LEVEL 2
- COTONGIN
- Eli Whitney invented this device to automate farming. Can you find it?
- It was for cotton.
- LEVEL 2
- DARWIN
- This Englishman wrote a book saying people are related to apes. Can you find him?
- His theory is called evolution.
- LEVEL 3
- DIESELEN
- This German inventor came up with a simpler kind of engine that doesn't need electrical ignition. Can you find him?
- His name is used for many truck engines.
- LEVEL 3
- DNA
- These molecules contain the blueprints for life. Can you find them?
- It's usually known by a three-letter abbreviation.
- LEVEL 3
- DOLLAR
- What kind of number is less than zero?
- It is the opposite of positive.DOMESTIC
- What animal was the first one befriended by humans?
- Man's best friend.
- LEVEL 2
- DROPWATR
- It is in the air you breathe, and is necessary for life. Can you find it?
- Astronauts have to take it with them.
- LEVEL 1
- DYE
- It is a chemical used to make clothes colorful. Can you find it?
- Some people put it in their hair.
- LEVEL 1
- ECLIPSE
- In ancient times, people were terrified when this natural event stole the Sun.
- Can you find it?
- The Moon covers up the Sun.
- LEVEL 2
- EGYPTAG
- What did our ancestors do when they stopped spending their lives roving as
- hunters and gatherers?
- Today, we do it with tractors.
- LEVEL 1
- EINSTEIN
- He invented the theory of relativity. Can you find him?
- He had a moustache and wild, fuzzy hair.
- LEVEL 2
- EMBRYO
- You started like this, inside your mother. Can you find the picture?
- All animals start this way.
- LEVEL 3
- ENIAC
- This was a very big computer. Can you find it?
- Much bigger than a bread box.
- LEVEL 3
- FIBEROPT
- It is replacing wire for phone connections. Can you find it?
- It looks like glowing spaghetti.
- LEVEL 3
- FIRSTIC
- These tiny devices are found inside computers. Can you find them?
- They're inside digital watches, too.
- LEVEL 2
- FLY
- This pest holds clues to inherited qualities like eye color. Can you find it?
- You swat them.
- LEVEL 1
- FNGRPRNT
- Crooks often leave these clues at the scene of a crime. Can you find it?
- You're wearing them on your hand.
- LEVEL 1
- FRANKLIN
- This founding father of the USA nearly electrocuted himself with a kite. Can you find him?
- He was also a printer, a writer, and a diplomat.
- LEVEL 3
- FREUD
- He was best-known as the founder of psychoanalysis. Can you find him?
- He was from Vienna.
- LEVEL 2
- GALAXY
- It is the galaxy of stars we live in. Can you find it?
- It's also a candy bar.
- LEVEL 2
- GALILEO
- He got into trouble for claiming the Earth moved around the Sun. Can you find him?
- He was the first person to use a telescope for astronomy.
- LEVEL 3
- GEMINI
- These American spacecraft sent up pairs of astronauts. Can you find it?
- It's also a constellation.
- LEVEL 3
- GENETENG
- This science modifies the DNA of plants to make them better? Can you find it?
- It may one day prevent birth defects.
- LEVEL 3
- GENETICS
- It is the science that studies heredity. Can you find it?
- The word is related to "genealogy."
- LEVEL 2
- GEOMETRY
- This branch of math deals with triangles, squares, and circles?
- It can be plane or solid.
- LEVEL 2
- GOODYEAR
- This process made rubber practical. Can you find it?
- The name is related to "volcano."
- LEVEL 3
- GREENHS
- Our planet may get too warm. Can you find the cause?
- You also find this in glass houses.
- LEVEL 2
- GUTENBRG
- He was the first European to print a book with movable type. Can you find him?
- A Bible was named after him.
- LEVEL
- HBALLOON
- It allowed people to fly long before the airplane. Can you find it?
- It doesn't have wings, propellers, or rockets.
- LEVEL 3
- HERO
- He built the first steam engine. Can you find him and his engine?
- It was in ancient times.
- LEVEL 2
- HORSCART
- This ancient form of transportation combined an animal with the wheel. Can you find it?
- It can be pulled by an ox.
- LEVEL 2
- HURRICAN
- This powerful storm can strike almost anywhere on Earth. Can you find it?
- Its winds move in a circle.
- LEVEL 3
- HYPNOTIS
- Performers use it to put people to sleep. Can you find it?
- Psychiatrists use it, too.
- LEVEL 2
- INDUSTRL
- This peaceful revolution used machines to replace human labor. Can you find it?
- It caused people to leave the farms to work in factories.
- JET
- What kind of airplane has an engine but no propeller?
- Fighter aircraft are usually this type.
- LEVEL 3
- JUPITER
- Galileo found four moons orbiting this planet. Can you find it?
- It's the biggest planet in the solar system.
- LEVEL 3
- KINGTUT
- He wasn't the most important king, but he had a great funeral. Can you find him?
- He was an Egyptian king.
- LEVEL 2
- LASER
- This gadget makes a tremendously concentrated beam of light. Can you find it?
- A big one can vaporize metal.
- LEVEL 2
- LAVAFLOW
- It heats the inside of the Earth. Can you find it?
- It also causes volcanoes to erupt.
- LEVEL 1
- LEVER
- With this simple tool, you can move a heavy weight. What is it?
- A crowbar is an example.
- LEVEL 2
- LEWCLARK
- These two men first crossed North America from ocean to ocean. Can you find them?
- They explored the American northwest.
- LEVEL 1
- LIGHTNG
- It's the biggest spark that nature makes on Earth. Can you find it?
- It comes with thunder.
- LEVEL 3
- LILIENTH
- A German engineer pioneered what kind of airplane before the Wright brothers?
- It doesn't have an engine.
- LEVEL 2
- LINDBERG
- He was the first person to fly solo across the Atlantic. Can you find him?
- His first name was Charles.
- LEVEL 3
- LISTER
- He invented a germ-killer called an antiseptic. Can you find him?
- A mouthwash is named after him.
- LEVEL 3
- MEIOSIS
- Sperm and egg cells have half the chromosomes of ordinary cells. What's this process called that brings this about?
- It's from a Greek word meaning "to make smaller."
- LEVEL 1
- MERCURY
- This planet is closest to the Sun. Can you find it?
- It's also the name of a liquid metal.
- LEVEL 2
- METEORIT
- What are rocks that fall from space called?
- It's from a Greek word meaning "high in the air," as in meteorology.
- LEVEL 3
- MILLIKAN
- What tiny elementary particle has the smallest electrical charge?
- It's what flows in electric currents.
- LEVEL 2
- NEPTUNE
- This planet is the next beyond Uranus. Can you find it?
- It's the most distant planet ever visited by a spacecraft.
- LEVEL 3
- NERVES
- They are the most complex cells in your body. Can you find them?
- They carry pain.
- LEVEL 3
- NEUTRINO
- An exploding star was seen in 1987. What is it called?
- A star that merely flares up a lot is called a nova, meaning a new star.
- LEVEL 1
- NEWTON
- This English scientist figured out the law of gravity. Can you find him?
- Legend says he was inspired by watching an apple fall from a tree.
- LEVEL 1
- NPAPERS
- This information source is printed every day. What's it called?
- It's made from trees.
- LEVEL 1
- NUCPOWER
- This kind of power plant generates electricity from radioactivity. Can you find it?
- It uses a controlled chain reaction.
- LEVEL 2
- OIL
- This black liquid is one of the world's main energy sources. Can you find it?
- It is pumped from underground sources
- LEVEL 3
- ORGMOLEC
- What do you call the chemistry of compounds found in living things?
- It's the study of carbon compounds.
- LEVEL 1
- OZONE
- What gas is missing above Antarctica?
- It is an oxygen compound.
- LEVEL 2
- PACEMAKR
- Surgeons implant these devices in people to give their hearts an electrical kick. Can you find it?
- They help the heart keep a steady beat.
- LEVEL 2
- PENICILN
- A British scientist discovered a life-saving medicine in mold. Can you find it?
- It is like the mold found on stale bread.
- LEVEL 1
- PHONOGRA
- This machine first allowed the human voice to be recorded and played back. Can you find it?
- It played music long before the tape recorder.
- LEVEL 3
- PI
- It is the name for the ratio of the circumference of a circle to its diameter. Can you find it?
- It's the most famous number in mathematics besides the ten digits (0 to 9).
- LEVEL 2
- POMPEII
- This Italian city was buried by a volcano. Can you find it?
- Today, the ruin is a tourist attraction.
- LEVEL 2
- PRISM
- This piece of glass breaks a white beam of light into its colors. Can you find it?
- It's usually triangular.
- LEVEL 1
- PYRAMID
- Egyptian pharaohs were sometimes buried in these huge stone monuments. Can you find them?
- There is a picture of one on the US dollar bill.
- LEVEL 3
- RADIO
- What kind of wave does radio use?
- It's a mixture of magnetism and electricity.
- LEVEL 2
- REAPER
- Cyrus McCormick invented this machine to harvest grain. Can you find it?
- It reduced the number of farm hands needed.
- LEVEL 3
- RIVRBOAT
- The Egyptians used this mode of transportation for moving long distances. Can you find it?
- Instead of roads, they used rivers.
- LEVEL 2
- ROBOT
- You might call this a mechanical person. Can you find it?
- Author Isaac Asimov often described these machines in his science fiction.
- LEVEL 3
- ROSETTA
- This stone was the key to deciphering Egyptian hieroglyphics. Can you find it?
- It had Greek and hieroglyphic writing side by side, like a dictionary.
-