| assignment |
something given as a task, such as a job or lesson. |
| bother |
to annoy or give trouble to. |
| engine |
a machine that uses energy from a source such as gasoline or electricity to do work. |
| glider |
a light aircraft without a motor that flies on air currents. |
| leaf |
a flat part of a plant or tree that grows from the stem or branch. A leaf is usually green. |
| librarian |
a person who has special training to work in a library. |
| march |
to walk with steady, regular steps together with others. |
| nod |
to move the head up and down in order to greet or agree with someone. |
| planet |
a large object in outer space that moves around the sun or another star. |
| route |
a road or way of travel from one place to another. |
| sweat |
to give off a liquid through the skin. |
| ticket |
a small piece of paper that shows that you have paid for something. |
| tone |
a single sound in music or a sound that is similar to music. |
| wax |
a solid yellow substance that is made with fats or oils. It melts when you heat it for a short time. |
| young |
in an early part of life or growth. |