quick sand demo

by steve archer
(raleigh nc)

I took a plastic cake pan dish and drilled a hole in bottom then I took a litre coke bottle drilled hole in cap then took clear 1/2 inch plastic tubing and inserted in cap and bottom of cake pan.

I filled the pan with white silica sand then filled bottle with water then put a steel ball bearing on top of sand.

I turned the water bottle upside down and the water rushed in the bottom and the ball bearing sinks!

Click here to post comments

Join in and write your own page! It's easy to do. How? Simply click here to return to Homeschool Ideas - Science.

Contact | Home