Get a sheet of graph paper. Label the y-axis: Remaining Atoms ... The point where the vertical line touches the x-axis is the half-life of “Pennium” in minutes. This standard includes the use of ...

Sara and Beca learn about constructing a half-life graph with the help of both Ada the science app and an early version of Ada. After finding an old phone in her home, Sara shows Beca how the old ...