Wanganui and Wellington water 0 Overview Using this Resource Connecting to the Curriculum Marking Student Responses Further Resources This task is about planning a fair test. Question Some students wanted to compare tap water from Wanganui and Wellington to find out which makes bubbles more easily with soap powder. a) Students want to do a "fair test". They need to make sure that all the following are kept the same EXCEPT the: amount of soap powder used number of shakes given to the container with the soap powder and water. temperature of the water. where the water came from. amount of water used. Question 1Change answer b) The students did the experiment twice. Why did they do this? b) The students did the experiment twice. Why did they do this? Task administration: This task can be completed with pencil and paper. Level: 4 Curriculum info: Science, Investigating in science, Material World Keywords: properties, water, fair testing, controlling variables Description of task: Students are asked one multiple-choice and one short answer question about fair testing. Curriculum Links: Science capabilities The capabilities focus is brought about by the conversations students have and the questions they ask. Capability: Gather & interpret data This resource provides opportunities for students to discuss what makes a fair test. Science capability: Gather and interpret data (TKI) Science capabilities: Gather and interpret data Answers/responses: Y8 (10/1997) a) D (where the water came from) moderate b) Any answer which shows an understanding of improving the accuracy of the findings. very easy Warm feet Making bubbles II Making bubbles Carbonate reactions Static electricity investigation Freezing salt water Insulating a house How well does a "green" fridge work? Electric kettles Burning peanuts Spheres and cubes Nail investigation Cooking potatoes Growing radishes Boiling water Bendy ruler
