What to do: 1. Put the water in clean plastic bag. 2. Add the broken pieces of biscuits, flour and small pieces of any food available. 3. Shake the plastic bag until all are mixed well. 4. Write your observations on what happened to the biscuits, flour and other food after shaking the plastic bag. Guide Questions: 1. Based on the activity, what happened to the biscuits, flour and other foods after shaking the plastic bag? 2. What do you think is the body organ being represented in the activity using the plastic bag?​