Activity (Hands-On)Grades 4 - 6
A Matter of Leaching
Materials List
Each group needs:
- top half of a two-liter plastic bottle
- coffee filter
- zip-lock sandwich bag
- 2 plastic cups
- A Matter of Leaching Worksheet (PDF), one per student
To share with the entire class:
- sand (approximately 5-10 pounds)
- gravel (approximately 5-10 pounds)
- cotton balls
- screening (one to two 4"x4" squares per group)
- activated charcoal or carbon (optional, can be purchased on amazon.com or at some garden centers)
- garden soil, not potting soil (one handful per group)
- permanent marker