| kaleidoscope |
a tube with small bits of colored glass and mirrors inside. The tube is held to the eye and turned to see changing forms. |
| lens |
a piece of clear material such as glass that bends light rays passing through it. The surface of a lens is curved to bend light rays toward or away from a central point. [1/3 definitions] |
| light bulb |
a glass object that fits into a lamp or similar device and produces light. |
| looking glass |
a mirror made of glass. |
| manganese |
a dense, hard, grayish white metal that is one of the chemical elements. It is used in making steel, and is also used to color glass purple. (symbol: Mn) |
| marble |
a very small ball made of colored glass, used in children's games. [1/2 definitions] |
| mirror |
a smooth surface that reflects an image of whatever is in front of it. A mirror is usually made of glass with a coat of shiny metal on the back. [1/2 definitions] |
| mosaic |
a picture or design made with many small colored pieces of glass, tile, or stone. These pieces are fitted together and cemented into place. |
| mug |
a drinking cup with a handle. Mugs are made of glass, plastic, metal, and pottery. [1/3 definitions] |
| pane |
a sheet of glass in a window or door. |
| pot1 |
a deep round container made of metal, glass, or clay, used for cooking food. [1/4 definitions] |
| potassium |
a soft, silver-white metal that is one of the chemical elements. Potassium is used in making fertilizer, soap, glass, and explosives. It occurs in nature only in compounds with other elements. (symbol: K) |
| prism |
a solid glass or crystal object that light can pass through. It has three sides that are rectangles and two ends shaped like triangles. A prism splits a ray of light into the colors of the rainbow. [1/2 definitions] |
| putty |
a soft mixture that is like clay. It is used to hold panes of glass in windows and to fill small holes and cracks. |
| sash2 |
the frame that holds the glass panes of windows or doors in place. |
| silicon |
a hard, dark gray substance that is a chemical element. It is found in silica, a compound that makes up one fourth of the earth's crust. Silicon is used in making glass, concrete, bricks, and computer chips. (symbol: Si) |
| slide |
a small piece of glass that holds an item so that it can be looked at under a microscope. [1/11 definitions] |
| sliver |
a small, thin splinter of wood or glass that has broken off. |
| straw |
a thin, hollow tube of paper, plastic, or glass used to suck up a drink; drinking straw. [1/3 definitions] |
| terrarium |
a closed container for growing small plants or keeping small animals. A terrarium is usually made of clear glass or plastic. |
| test tube |
a thin, hollow, glass tube that is closed at one end. Test tubes are used in scientific experiments. |