Lesson 7I Lesson 2 Comparing fuels
Aim: Make a fair comparison of two different types of fuel.
Key words: Natural gas, ethanol, fair test, reliability, temperature change.
Starter: You will be taking part in a practical to compare the energy output of two different fuels. To begin the lesson you need to prepare a table for recording your results as you will be drawing a graph of these results later in the lesson. We will be data logging which means that you need to make lots of measurements as accurately as you can.
Main: We will be testing two different types of fuel over the next two lessons; they are natural gas (using the Bunsen burners) and ethanol (using a spirit burner). To measure the energy content of the fuel we are going to use that fuel to heat some water in a beaker. You need to think about how we can which of the two fuels has the most energy. You also need to think about how you can make the comparison a fair test (remember what you found out about Thermometers in the previous lessons). We will be heating the water for 10 minutes and recording the temperature of the water every minute.
Once you have recorded your results you also need to plot a temperature/time graph and write a short conclusion (which fuel was the best?).
Aim: Make a fair comparison of two different types of fuel.
Key words: Natural gas, ethanol, fair test, reliability, temperature change.
Starter: You will be taking part in a practical to compare the energy output of two different fuels. To begin the lesson you need to prepare a table for recording your results as you will be drawing a graph of these results later in the lesson. We will be data logging which means that you need to make lots of measurements as accurately as you can.
Main: We will be testing two different types of fuel over the next two lessons; they are natural gas (using the Bunsen burners) and ethanol (using a spirit burner). To measure the energy content of the fuel we are going to use that fuel to heat some water in a beaker. You need to think about how we can which of the two fuels has the most energy. You also need to think about how you can make the comparison a fair test (remember what you found out about Thermometers in the previous lessons). We will be heating the water for 10 minutes and recording the temperature of the water every minute.
Once you have recorded your results you also need to plot a temperature/time graph and write a short conclusion (which fuel was the best?).
LA differentiation: Mr C will provide copies of the method for the experiment and a writing frame for the data logging graph (labelled X & Y axis). The reason for this is so students can focus on drawing really clear diagrams of scientific equipment. Students also need to focus on fair testing and how the equipment is set up to ensure a fair test. Students will also draw the table for results.
Plenary: Discussion of today’s practical and a relevant SATs question (at the end of the second lesson).
Homework: None set.
Specification link up – unit Physics 2.13.5
Sc4 5a – energy resources
Sc1.2a – drawing conclusions from data
No comments:
Post a Comment