Data Table

Source	Without Shielding	Paper	Aluminum	Brick	Jar of Water	Wood	Lead
Gas lantern mantel
Fiesta ware pottery
Luminescent clock face
Smoke detector

 

Questions 

1. Which item had the highest reading?

2. Which item had the lowest reading?

3. Do you think the density of the shield was important? Why?

4. Do you think the thickness of the shield was important? Why?