| A | B |
| goes | move from one place or point to another |
| kinds | things having similar characteristics |
| heavy | of great weight; difficult to lift or move |
| against | in opposition to |
| today | this present day |
| axles | a rod or spindle passing through the center of a wheel or group of wheels |
| inclined planes | a plane inclined at an angle to the horizontal |
| lawn | an area of short, mown grass in a yard, garden, or park |
| machines | an apparatus using or applying mechanical power and having several parts |
| pulleys | a wheel with a grooved rim around which a cord passes |
| surface | the outside part or uppermost layer of something |
| vacuum | clean with a vacuum cleaner |
| convenient | it is easy to use and saves you time or work |
| equipment | what we call the pieces or parts needed to do something special |
| engine | a machine that is used to run another machine. |
| pilot | the person who flies a plane |
| cellar | a room or rooms built underground |
| furnace | is used to warm buildings. |
| steer | to cause transportation to go in a certain direction. |
| gadget | is a small tool that is used for a certain purpose. |