Preview - Ideal Gas Laws - Connected Chemistry 2019

Let's talk about our experimental designs

Please set your computer aside briefly (do not close this page) and join the classroom discussion that your teacher is going to moderate.

Note: If your teacher did not initiate the discussion yet, you can start answering the first four questions below as you are waiting.

 

 

Referenced Questions

These questions were answered in the previous steps. They are provided here for your reference.

In the next page, you are going to conduct your first computational experiment. To keep things simple in this lesson, you will design an experiment for a pre-determined research question:

Dependent variable: (P)ressure
Independent variable: (N) umber of particles
Research question:

Is there any mathematical relationship between these two variables?

If yes, what is the nature of this relationship?

 

When designing your first computational experiment using the table above, you should have the following considerations in mind: 

  1. Collect sufficient number of data points to find a reliable answer to the research question.
  2. Test different values for the independent variable (N) to find a reliable answer to the research question (min. 5 different values).
    1. Enter each value for independent variable in a new row.
    2. Add more rows by clicking any of the the   buttons.
  3. Design an experiment that can be practically conducted within CODAP.

Note: You will run this experiment within the CODAP workbench in the next page.

Questions

Please answer the questions below.

If the discussion has not started yet, start answering the following question (and the next 3 questions): What is an experiment? Why do we conduct experiments?

If the discussion has not started yet, please answer the following question: Can you list a few experiments that you heard about outside of school (e.g., news, internet, etc.)? How would you compare those experiments with the experiments we are conducting in this unit? (min. 2 sentences)

Before moving on, please reflect on the classroom discussion briefly: (1) What are the characteristics of a good, practical computational experiment? (2) Which initial conditions we need? Why? (3) How many repetitions do we need? Why ? 

Notes

These notes will appear on every page in this lesson so feel free to put anything here you'd like to keep track of.