“Crossed Arrows” (object) and Flashlight

The flashlight illuminates the crossed arrows, our “object”.

Double Convex “Converging” Thin Lens

Handle the lens carefully and by the edges.

Lens Holder

Screen (piece of plane white paper taped to a box)

Project an image on the white side of this screen.

1 meter tape measure

Play Doh (used to support flashlight and lens holder)

Masking Tape

Background Data Collection and Analysis