Summary Make slime and/or oobleck and/or flubber. Compare their properties. Science content Chemistry: States of Matter, Properties of Materials (K-7) Chemistry: Physical Changes, Solutions, Mixtures and Separating (2, 4, 5, 6) Chemistry: Chemical Changes (2, 7) Activities in this lesson Slime and Silly putty recipes Oobleck Edible slime (Flubber) Procedure Students can make and compare the different slimes and goops during a lesson on states of matter and mixtures. Also used for a close-to-Halloween lesson. Suggested order for slime and ooblek: Students first make regular slime, play with it, then put it in a baggie (can be taken home). Then they make oobleck. (Too messy to take home without spilling.) Use a Venn diagram to compare how the slimes were made, and their properties (how they behave) - see worksheets attached. Properties for discussion summarized: Oobleck is a mixture (of cornstarch and water). Flubber is a mixture (of fibre and water). Slime is one kind of molecule (a long polymer). Slime is made by a chemical reaction, oobleck and flubber are not. All behave like a solid and a liquid, depending on how they are handled (see individual activities for explanations). Notes Ooblek is messier, so make last. Attached documents worksheet_slime_and_ooblek.pdf worksheet_slimes_and_ooblek.pdf Grades taught Gr 3 Gr 4 Gr 5
