Working scientifically  

Task 2c: Make notes that:

• Describe how to  stay safe in a science lab.

• List five lab rules for the science lab.

• List the nine hazard symbols. 

Task 3b: Make notes that:

• Describe how to use a measuring cylinder properly

• Describe how to use a thermometer properly

• Describe how use a Bunsen Burner safely

Task 4b: Make notes that:

• List common pieces of scientific apparatus and draw a scientific diagram for each

• Describe how to use a balance properly 

• Suggest why measurements must be precise in an experiment

• Define resolution, precision and accuracy. 

Task 5c: Make notes that:

• Define independent variable

• Define dependent variable

• Define control variable

• Define a fair test

Task 5d: Use the information on this worksheet for each investigation:

• State the hypothesis.

• State the independent variable.

• State the dependent variable.

• State the control variables.

• Is it a fair test?

  • How do you know?

Task 5e:  Check your answers using the slides

Task 8b: Make notes that:

• Describe how to calculate a mean

• Define categoric data and name the appropriate type of graph to use

• Define continuous data and name the appropriate type of graph to use

• List rules to follow when plotting a graph

• Define anomaly

Task 8c: Use these results to:

• Identify anomalies

• Calculate a mean

• Plot the mean results on a graph (if you have graph paper)

Task 9b:  List the key components to include when writing a conclusion

Task 9c: Read this example of a conclusion and use it to:

• Give a grade (P ,L, M or H) using the criteria 

• List some examples of good practice from the conclusion

• List improvements to be made to the conclusion

My data do support my hypothesis (the amount of water affects the time it takes to heat up to a certain temperature). As the amount of water increased, the time taken for it to reach 50℃ increased.

This is because as the amount of water increases, the heat from the flame would need to heat up more water, so it would take longer.

One limitation is that I only used 4 volumes of water. I also forgot to ensure my beaker was cold again before I moved onto the next volume. This could have affected my experiment, so therefore my conclusion is fairly weak.

Based on my conclusion, I predict that the volume of any substance would affect the time it takes to heat up, not just water.

Task 10b: Make notes that:

• List the key components to include when writing a plan.

• Write a plan for the practical described on slide 10. 

Complete the quizzes to make sure you understand this unit.