1. Learning Objectives: To understand how to write an effective plan for a scientific investigation

2. In the next slide move the instructions in the order you think they should go. Click on complete and compare your order with the one given as a textbook order. Are there any differences between your order and that of the book? Are these differences important? Why? Could these differences mean that the experiment would not work? Why?

3. Order of Instructions Complete Add 3 drops of indicator Measure 25 cm 3 of NaOH into a conical flask using a pipette Fill a burette with HCl using a funnel Swirl the flask to ensure mixing Add the HCl to the flask in small amounts Add the HCl very slowly near to the end point Stop when one drop makes the whole solution change colour Textbook Order Fill a burette with HCl using a funnel Add 3 drops of indicator Swirl the flask to ensure mixing Add the HCl very slowly near to the end point Add the HCl to the flask in small amounts Measure 25 cm 3 of NaOH into a conical flask using a pipette Stop when one drop makes the whole solution change colour My Order