What is counted?
Identify the unit, product or system, time period and exclusions.
Student investigations
Classroom activities
Choose an activity, change a variable, and explain what your evidence supports. You do not need an AI account or to send any AI requests.
Change one assumption
You’ll need: Multiply decimals; distinguish W (power) from Wh (energy).
You’ll produce: A two-row comparison and a two-sentence explanation.
- Load the reference case below. Record 25 requests/day, 1 Wh/request, 1× response sensitivity and 390 gCO₂e/kWh. These are authored inputs.
- Calculate annual requests, electricity and carbon emissions by hand. Check the calculator.
- Change only the grid intensity to 700. Record the new electricity and carbon totals.
- Explain why electricity stayed constant, and name information needed to choose a real serving-location grid factor.
Exit ticket: Does a higher grid factor mean the model used more electricity? Explain with your results.
The worksheet downloads as an HTML file. Open it in a browser to work offline or print it.
Current investigation: 25 text requests/day at 390 gCO₂e/kWh. Your inputs remain unchanged until you load the reference case.
Three questions to keep asking
Where did it come from?
Follow the exact value to a source or identify it as an authored assumption.
What can I conclude?
Explain what follows from the evidence and what still depends on missing information or priorities.