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Watch the video for an overview of today's lesson.
Accessing documents on this site
Accessing documents on this site
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Activity 1: Conduct your investigation
Activity 1: Conduct your investigation
Learning intentions:
To conduct an investigation involving fair testing of different materials
To clearly represent data and information using appropriate scientific formats
To describe trends, patterns and relationships in the effectiveness of different materials in blocking sound
Conduct your investigation and collect results
Safely complete your investigation using the Arduino Science Journal or Phyphox: physical phone experiments app to collect your data. Record your data in a suitable format. Keep detailed records of all data, any observations and adjustments made during the experiment.
Display your results in a suitable labelled graph.
Analyse results
Ideas to include in your discussion:
describe the results obtained and any patterns, trends or relationships found in the data collected
give possible explanations for the results you obtained including why some materials were better than others in reducing the transmission of sound energy
identify the energy transformations involved in the production and detection of sound in your experiment
explain any adjustments that you made during the experiment
describe how you ensured that it was a fair test.
Wrap-up with your conclusion
Download the Scientific Investigation worksheet. Write your conclusion by completing the Scientific Investigation report. In your Conclusion, include:
a statement of what you found eg If __________________(change in independent variable), then __________________ (change in dependent variable).
whether the Hypothesis was accepted or rejected and why
improvements that you would make to the design of your experiment if you were to do it again
suggest areas or ideas for further investigation.
Sharing your findings
Discuss with your teacher how to submit your completed scientific investigation report.
You might like to share your investigation with your class. You could do this using any of a range of formats including a science research article, a poster, a short video eg using Flipgrid or in a PowerPoint or Prezi presentation.
So that your findings are understood and justified, it is important that your presentation addresses the following:
1. What were you investigating? What was your hypothesis?
2. How did you collect your evidence?
3. What did you find out? A clear evidence-based conclusion.
4. What evidence supports this? Show the experimental evidence (data, tables and graphs).
Check your understanding
Check your understanding
Read the questions, select the correct answer. Select Check when you have finished.
Activity 2: An anechoic chamber (optional)
Activity 2: An anechoic chamber (optional)
Learning intention: To explore an application of sound absorbing materials
Watch the video 'Can Silence Actually Drive You Crazy?' In your workbook, answer the following questions below. (10:33)
Post viewing
Post viewing
Answer the following questions about the video
At the beginning of the video, what did you notice happen to the sound as she turned around in the corner of the room? Why do you think this happened?
Were some of the materials in your investigation used in the anechoic chamber? How do the ideas presented relate to your investigation?
After watching this, what question would you like to now investigate in an experiment?
Handing in your work
Handing in your work
Don't forget to hand in the work you completed today!
Your teacher will have told you to do one of the following:
Upload any digital documents you created and any photos you took of your written work to your Learning Management system (MS Teams, Google Classroom for example).
Email any digital documents you created and any photos you took of your written work to your teacher.
Make sure you keep any hand written work you did in your exercise book or folder as your teacher may need to see these when you are back in class.
Student reflection
Student reflection
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