| addition |
the process of finding the total of two or more numbers. |
| classmate |
a person in the same class as another at a college or school. |
| foggy |
full of or covered by fog. |
| gather |
to bring together into one place; collect. |
| inner |
located inside. |
| metal |
a kind of chemical element, such as copper, iron, or silver, that can move heat or electricity through itself. |
| model |
a small copy of something. |
| push |
to move something or cause something to move by using pressure against it. |
| sack |
a large bag made of thick paper or other strong material. A sack is used to hold grain, potatoes, supplies, or other heavy things. |
| screen |
a piece of material made of woven wire. A screen covers a window, door, or other opening. |
| smoke |
the black, white, or gray gases that you see in the air when something burns. |
| snowflake |
a single flake of snow. |
| straighten |
to make or become more even or less bent. |
| suitcase |
a box used for carrying clothing and personal things when traveling. |
| wheel |
a round thing that turns in circles and allows cars, trucks, bicycles, and other things to move. |