| activity |
a specific thing that people do. |
| behind |
in or at the back of; on the other side of. |
| den |
the resting place of wolves, lions, and other large wild animals. |
| gas |
a form of matter that is neither liquid nor solid. Oxygen is an example of a gas. |
| hire |
to give a job to. |
| leaf |
a flat part of a plant or tree that grows from the stem or branch. A leaf is usually green. |
| math |
a short form of a word that means the study of numbers. |
| order |
a direction or command. |
| peaceful |
quiet; calm. |
| pity |
sympathy or sorrow caused by another's pain, bad luck, or suffering. |
| runway |
a smooth, level strip on which airplanes take off and land. |
| skip |
to move forward by jumping on one foot and then on the other. |
| think |
to judge or reason about something. |
| unit |
a single thing that is one of a group of similar things. |
| welcome |
used to express warm greetings to someone who has just arrived. |