| ash |
the soft gray powder that remains after something burns. |
| bin |
a container or space for putting things or storing things such as wood, potatoes, or coal. |
| engine |
a machine that uses energy from a source such as gasoline or electricity to do work. |
| inventor |
one who conceives of or makes something new. |
| mild |
not harsh; gentle. |
| pure |
not mixed with anything else; made of only one substance. |
| recycle |
to put used things through a process that allows them to be used again. |
| rocket |
a device shaped like a tube that moves at high speed and is powered by gases that are forced out of one end. Rockets are used to send things into the air. |
| roll |
to move by turning over and over. |
| round |
shaped like a ball or circle. |
| stable1 |
firm or steady; not likely to move. |
| sum |
the number or amount that comes from adding two or more numbers. |
| uncle |
the brother of one's father or mother, or the husband of one's aunt. |
| weird |
strange or odd; puzzlingly unusual. |
| wilderness |
a region in its natural state where there are things like trees and wild animals, but no people living there. |