After reading Mrs Wishy-Washy, set up a science experiment board. Question: Which detergent will best clean Mrs WW's clothes after she gives the animals a bath? Materials: 4 detergents, pails or bowls, water, wooden spoons, 4 scraps muddy T shirt fabric. Controlled variables: amount of detergent, water, and swishing time, and type of fabric. Manipulated variables: Kind of detergent. Procedures:(You decide how you wish to conduct.. I let students take turns "swishing" for 5 counts.) Conclusion: ?? Have fun !