![]() ![]() ![]() Others occur in nature, such as DNA, wheat gluten and starches. Some are man-made, such as plastic and nylon. Polymers are also called macromolecules, or large-sized molecules. One polymer might consist of hundreds of thousands of monomers. A polymer is made from long chains of repeating parts called monomers. One such non-Newtonian liquid can be created with white school glue, which is a polymer. Sometimes they can become so viscous-or have such a hard time flowing-that they could easily be mistaken for a solid. Manipulations like squeezing, stirring or agitating can also change how they flow. Non-Newtonian liquids, such as ketchup and slime, are different. Only adding or taking away heat can make some liquids, like water or oil, flow better or worse. Liquids have particles that can slide over and around one another, allowing the fluid to flow. Is it a solid or a liquid? Solids consist of tightly packed particles called molecules or atoms that clasp onto each other so the solid holds its shape. Why would slime be different? In this activity you will make your own slime, play with it and discover what makes it flow! They can feel as hard as a solid when squeezed in your fist, but as soon as you release your grip, they ooze out through your fingers like a thick liquid. ![]() Silly Putty, Gak and slime are different. Think of how honey slowly oozes from the bottle on a cold day and rushes out on a hot day. Most substances become harder when cooled and flow much better as they warm up. What substances can be fluffy, squishy and stretchy at the same time, and are so much fun to play with? Silly Putty, Gak and slime! A rabbit is fluffy, mud is squishy, and a balloon is stretchy. ![]()
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