This means something is good for the natural world and doesn't cause a lot of pollution.
Greeny
Eco-friendship
Sustainable
Environmentally friendly
A new tool, machine, or process that someone has created for the first time.
Discovery
Innovation
Invention
Creation
An engine that creates power by burning fuel inside of it. This is the kind of engine most cars use.
Internal combustion engine
Motor
Power train
Propeller
The Mayans used wheels, but not for transport. Instead, Native American wheels were:
religious items
toys
part of their ball game.
used to make pottery
A vehicle that slides over dirt, snow or ice, often pulled by animals like dogs or reindeer. It doesn't have wheels.
Sledder
Bobsled
Sledge
Toboggan
Cylinders that roll, often used to help something move easily
Cylinders
Wheels
Sprockets
Rollers
A type of train that runs on a single track or beam, which is often raised above the ground.
Locomotive
Railroad
Elevated train
Monorail
Who invented the modern automobile
No one really knows
Karl Benz
Leonardo Mercedes
Henry Ford
A vehicle with two or four wheels that is pulled by an animal, like a horse or ox. It's used for carrying heavy loads.
Cart
Handcart
Sleigh
wagon
The tools, machines, and inventions people have created to solve problems and make life easier.
Technology
Machinery
Equipment
Tools
The earliest form of transport was walking, AKA going:
by feet
on feet
by foot
on foot
A two-wheeled electric vehicle that you stand on. It balances itself and is controlled by the way you lean your body.
Tricycle
Segway
Scooter
Hoverboard
A large, closed horse-drawn carriage that was used for carrying people and mail a long time ago. It traveled between towns and had different "stages" or stops.
Old bus
Passenger carriage
Coach
Stagecoach
A large boat used for pleasure or racing.
Sailboat
Ferry
Vessel
Yacht
An ancient vehicle that had two wheels and was pulled by a horse. People used them for racing or in wars.
Chariot
Carriage
Rickshaw
Wagon
When did the first passenger railway open?
1825
1805
1885
1888
Who invented the wheel?
Hammurabi
Ramses II
No one really knows
Alexander the Great
The process of growing, improving, or becoming more advanced over time.
Advancement
Improvement
Development
Progress
A machine used for carrying people or things from one place to another, like a car, bicycle, or bus.
Vehicle
Contraption
Transportation
Machine
An ancient region in the Middle East between the Tigris and Euphrates Rivers
Mesopotamia
Babylon
Fertile Crescent
Sumer
It is believed that the first wheels were actually used to:
play games
transport heavy things
gamble money
make pottery
Some of the best early roads were made by the ________
Mesopotamians
Chinese
Romans
Greeks
A way of making things where each worker does one small job over and over. The product moves from one person to the next until it's finished.
Manufacture
Production
Conveyor belt
Assembly line
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