Year 2 Chemical Sciences (ACARA, 2012) The arts Decorating a Mother’s day card Technology Designing a card Literacy Writing a message or poem on the card Sose Develop an understanding of recycling Declarative Knowledge Students will know that: Procedural Knowledge Students will be able to: materials interact through direct manipulation materials can be changed through direct manipulation investigate the effects of mixing materials together identify materials that can be changed or remade through direct manipulation simulate a manufacturing process by making paper Observe and describe changes to materials
Materials Required: scrap paper, water, blender, large mixing bowl, screen Activity Time: 60 minutes Concepts Taught: Changing physical states, recycling Procedures: Save classroom paper scraps for several days. Children may also want to bring in some from home. (This should be encouraged, so they can feel they have provided something personal to the project and they can inform parents about the need for recycling). Set up blender (or food processor). Explain blender safety: 1. only an adult can use the blender because of sharp blades. 2. The lid must always be on the blender until all motion of the blades has stopped. Have students begin to add a few small scraps of paper into the blender. Add just enough water to thoroughly soak paper. Place lid on the pitcher and begin blending. After a few seconds, check the mixture. Add water and paper as needed. Empty the pulpy mixture into a bowl. Repeat until bowl is nearly full or until each student has had a turn helping create the mixture. Outside, or over a large basin (a water table is ideal). Pour and spread the pulp in the bowl over the screen. Place the screen outside or in a warm, dry area for several hours. After several hours, touch the screen to see if the pulp is dry. When pulp is dry, slowly peel the paper off the screen. Whole class discussion to scaffold the assessment task on the back of the task card, talk about what happened to the paper when water was added to it. What happened to it in the blender? Why did it go back to being like paper? How is this paper different from the paper we use to write and draw on?