A stopwatch to record lap times .
Seeing as you are looking at speed, you could use a stopwatch.
A pool and a stop watch.
The tool is named diamond probe.
Compass
Sextant.
A magnit
My pyramid
The first tool you would need to determine the percentage of butterflies with damaged wings would be a catch net. The second tool would be a hand lens.
level
Thermometer
A tape measure.
a Planer