Science?

The emission of energy as electromagnetic waves
Radiation
The movement caused within a fluid by the tendency of hotter and therefore less dense material to rise, and colder, denser material to sink under the influence of gravity, which consequently results in transfer of heat.
Convection
The process by which heat or electricity is directly transmitted through a substance
Conduction
Necessary to do things that require work
Energy
Circles with points on them that usually power vehicles or other gears
Gear
You can find it in many vehicles and such things as bikes
Wheel and axle
Its like a hill but not as steep so it is easier to push things up
Inclined plane
A thing many people build with, just like nails.
Screw
Like an inclined plane. The form that animated cheese is usually in.
Wedge
A rope tied around something that when you pull the rope it makes it go up
Pulley
When you pull it it usually makes something happen
Lever
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