Department of Energy Argonne National Laboratory Office of Science NEWTON's Homepage NEWTON's Homepage
NEWTON, Ask A Scientist!
NEWTON Home Page NEWTON Teachers Visit Our Archives Ask A Question How To Ask A Question Question of the Week Our Expert Scientists Volunteer at NEWTON! Frequently Asked Questions Referencing NEWTON About NEWTON About Ask A Scientist Education At Argonne Tree capillaries
Name: Kate A Shuchter
Location: N/A
Country: N/A
Date: N/A 


Question:
We are teachers in Colorado planning to work with fluid transport and capillary action in vascular plants. According to our memories, at 33 feet the forces of capillary action and gravity cancel each other out. We would like to explore how a 100 foot tree can transport water to its top. We are looking for factors that would effect long-term transport.

Is fluid pressure from below influential? Is soil type influential? How about the purity of the water?



Replies:
It's 32 ft, and that applies to siphoning. Capillary action is different because it depends upon the surface tension properties of water.

Jade Hawk



Click here to return to the Biology Archives

NEWTON is an electronic community for Science, Math, and Computer Science K-12 Educators, sponsored and operated by Argonne National Laboratory's Educational Programs, Andrew Skipor, Ph.D., Head of Educational Programs.

For assistance with NEWTON contact a System Operator (help@newton.dep.anl.gov), or at Argonne's Educational Programs

NEWTON AND ASK A SCIENTIST
Educational Programs
Building 360
9700 S. Cass Ave.
Argonne, Illinois
60439-4845, USA
Update: June 2012
Weclome To Newton

Argonne National Laboratory