S1 Using A Fire Extinguisher Lab Rules And Regulations Caltec S.1

EXPERIMENTAL CHEMISTRY Laboratory Rules, Regulations and Scientific Methods USING A FIRE EXTINGUISHER •Pull: Pull the pin, this will break the tamper seal. •Aim: Aim low, pointing the nozzle or hose at the base of the fire. ... •Squeeze: Squeeze the handle to release theextinguishing agent. •Sweep: Sweep from side to side at the base of thefire, the fuel source, until the fireis out. USING A FIRE EXTINGUISHER PREPARING A GLASS OF JUICE In groups, discuss how to make a glass of juice using a fruit passion fruit. 1. State the aim of the activity. 2. List the materials required for the activity. 3. Identify the steps followed in making the juice. 4. Describe the process involved in making of the juice. 5. What safety measures were required to prepare safe juice? The Scientific Method QUESTION Referring to activity above, which place would be the most suitable for preparing the fruit juice and why ? The Scientific Method Possible places to prepare juice •aKitchen, Laboratory or Factory •A Laboratory is the special room/place required for carrying out experiments in the school. Laboratory and Laboratory Rules/Regulations Question What special safety measures were required in the preparation of the juice ? •Wash all utensils/tools clean before use •Wash the fruit before cutting or using •Take care when using a knife for cutting the fruits, •keep the containers clean and covered, etc . The Scientific Method 1. Observing a particular behaviour. 2. Making immediate conclusions about the behaviour. 3. Identifying a problem to be acted upon. 4. Making a hypothesis. 5. Determining and controlling variables. The Scientific Method 6. Planning methods of investigation. 7. Analysing and interpreting data. 8. Making conclusions. 9. Writing a report. Laboratory and Laboratory Rules/Regulations In groups: a)examine a list of laboratory rules and produce a table or diagram showing …