Slime is a fun, stretchy substance made from a few simple ingredients. The most common base is white school glue, which provides the sticky texture. To make it stretchy, a liquid activator like borax solution or contact lens solution is added. This helps the glue molecules bond together, forming the slime. Additional ingredients can enhance the slime's appearance and feel. For color, food coloring or liquid watercolors can be mixed in. To add texture, items like foam beads or glitter can be included. These ingredients allow for endless creativity in making different types of slime.