Kitchen Changers
This large appliance keeps milk, meat, and other foods cold.
What is a refrigerator?
This machine removes dust and dirt from floors by suction.
What is a vacuum cleaner?
This two-wheeled vehicle is powered by pedals.
What is a bicycle?
Johannes Gutenberg is associated with the movable-type version of this machine for mass-producing books.
What is the printing press?
A doctor uses this instrument to listen to the heart and lungs.
What is a stethoscope?
This clasp with a coiled spring fastens fabric while shielding its sharp point.
What is a safety pin?
This countertop appliance browns slices of bread.
What is a toaster?
This appliance cleans clothes by agitating them in soap and water.
What is a washing machine?
This road vehicle uses an engine or motor rather than a horse.
What is an automobile?
Samuel Morse helped develop this system that sent coded messages over wires.
What is the telegraph?
This imaging method can reveal broken bones without surgery.
What are X-rays?
This fastener joins two rows of teeth by pulling a sliding tab.
What is a zipper?
This appliance uses spinning blades to mix, chop, or puree food.
What is a blender?
This appliance tumbles wet clothing in heated air.
What is a clothes dryer?
This moving platform carries people between floors in a building.
What is an elevator?
Alexander Graham Bell received a famous 1876 patent connected with this device.
What is the telephone?
This medical advance prevents pain during many operations.
What is anesthesia?
This bent piece of wire holds sheets of paper together.
What is a paper clip?
This oven uses electromagnetic waves to heat food quickly.
What is a microwave oven?
This household unit provides hot water for bathing and washing dishes.
What is a water heater?
Red, yellow, and green versions of this signal control road traffic.
What is a traffic light?
This medium sent voices and music through the air before television became common.
What is radio?
This preparation trains the immune system to recognize a particular disease.
What is a vaccine?
This small sterile pad with sticky ends covers a minor cut.
What is an adhesive bandage?
This machine automatically washes plates, cups, and utensils.
What is a dishwasher?
This plumbing fixture carries waste away with a rush of water.
What is a flush toilet?
This device sweeps rain from a car's front window.
What is a windshield wiper?
This invention added moving pictures to home broadcasting.
What is television?
Penicillin belongs to this class of medicines that fights bacterial infections.
What are antibiotics?
This pen uses a tiny rolling ball to transfer quick-drying ink.
What is a ballpoint pen?
This handheld tool removes the top from a sealed metal food container.
What is a can opener?
This invention replaced candles and oil lamps in most homes.
What is the electric light?
This safety restraint helps hold a passenger in place during a crash.
What is a seat belt?
This machine transmitted copies of documents over telephone lines.
What is a fax machine?
People with diabetes may use this hormone to control blood sugar.
What is insulin?
Striking this small stick against a rough surface produces a flame.
What is a match?
This below-freezing appliance or compartment allows food to be stored for long periods.
What is a freezer?
This home system distributes heat from one main source to multiple rooms.
What is central heating?
The Wright brothers achieved a famous powered flight using this type of vehicle in 1903.
What is an airplane?
This electronic device brought word processing and digital files into homes and offices.
What is a personal computer?
This implanted device helps regulate an abnormal heartbeat.
What is a pacemaker?
This fastener uses tiny hooks and loops and is commonly known by a famous brand name.
What is Velcro?
Clarence Birdseye helped popularize this rapid method of preserving packaged food.
What is quick freezing or frozen food?
Willis Carrier is closely associated with the development of this modern cooling system.
What is air conditioning?
This satellite-based system provides directions and pinpoints a traveler's location.
What is GPS?
This global network connects computers and makes websites and email possible.
What is the Internet?
This scan uses powerful magnets and radio waves to create detailed images inside the body.
What is an MRI?
Introduced by 3M in 1980, this small removable paper note uses a low-tack adhesive.
What is a Post-it Note?