Procedure Part 1:

We will use a magnifying lens and an empty paper towel roll to create a lense.

Materials / Part 2 / Main Page

 

Step 1:

• Find the focal length of your magnifying lens.
  • Hold the lens above a piece of paper under a light.
  • Move it until the light focuses onto a piece of paper.
  • Measure the distance from the paper to the lens.

 

 

Step 2:

• Cut the empty paper towel roll to the lens focal length.

 

 

Step 3:

• Use masking tape to tape the lens onto one end of the cut towel roll.