| bacteria |
microscopic organisms that often play a role in the decay of living things, the process of fermentation, and sometimes in causing disease. |
| brain |
the organ in the body that controls thought, movement, and feeling. The brain is inside the skull. |
| chalk |
a type of soft, white stone. Chalk is made into long thin shapes used for writing or drawing. |
| driveway |
a private road that leads from a street to a building such as a house or garage. |
| essay |
a short piece of writing on a particular subject that contains the ideas and opinions of the author. |
| housework |
the work of taking care of a household, especially cleaning inside the house. |
| impossible |
not able to happen or to be done. |
| injury |
damage or wrong that causes physical or mental pain or hardship. |
| jar |
a round container with a wide mouth. A jar is often made of glass and has a lid. |
| lap |
the front of the body from the waist to the knees when you are sitting. |
| pack |
a container for carrying things on the back. |
| plan |
an action one intends to take; aim. |
| president |
a person who leads a company, club, or other organization. A president of an organization can be elected or appointed. |
| scar |
the permanent mark that remains after a wound has healed. |
| unit |
a single thing that is one of a group of similar things. |