This is a simulation, not a quiz. You answer by trying things and watching what happens.
Our question
What controlled comparison will help you compare star observations by color and apparent brightness without inferring unsupported age or distance?
Getting the simulation ready…
1Change one thing
2Say what will happen, then run it
3Finish: say what you found
What counts as evidence
Select the measured comparison that directly addresses the prediction.
Name the changed condition, cite one result, and connect it to this goal: Compare star observations by color and apparent brightness without inferring unsupported age or distance.
Your controlled comparison, measured result, revised model, and transfer claim become inspectable scientific evidence.
Star Life Cycle: predicted what should change before this action: Adjust the mass slider to set initial star mass.