|

Floating Needle

Materials

  • Water
  • Bowl
  • Newspaper
  • Sewing needle
  • Liquid detergent
Directions
  1. Cut out a piece of newspaper about two inches square.
  2. Fill the bowl with water and float the newspaper on the surface of the water.
  3. Place the needle in the center of the newspaper.
  4. Carefully push the edges of the newspaper down into the water.
  5. As the newspaper gets wet and sinks, it will leave the needle floating.
  6. Now add a drop of liquid detergent to the water at the edge of the bowl.
  7. Notice how the needle quickly sinks to the bottom.
Note: Surface tension made it possible to float the needle on water. The needle was supported by the water. The detergent caused a break in the surface tension around the needle and it sank.
|

From 365 Smart After-School Activities by Sheila Ellison & Judith Gray. Copyright © 2005 by Sheila Ellison & Judith Gray. All rights reserved. Used by arrangement with Sourcebooks, Inc.

Buy the book at www.amazon.com.


stay connected

Sign up for our free email newsletters and receive the latest advice and information on all things parenting.

Enter your email address to sign up or manage your account.

Facebook icon Twitter icon Follow Us on Pinterest

editor’s picks

highlights

Top 10 Free Homework Help Websites
Is helping your child with homework more frustrating and confusing than ever before, thanks to the new Common Core standards? Check out the best free homework help websites to boost kids' success in math, science, English, and more.

Kindergarten Readiness App Wins Gold
Our Kindergarten Readiness app won the Gold Award of Excellence in the educational category at the 2014 Communicator Awards. This valuable checklist comes with games and activities to help your child practice the essential skills she needs for kindergarten. Download the Kindergarten Readiness app today!

11 Fantastic Fall Apple Desserts
Nothing says fall like the smell of an apple dessert baking in the oven. Use up your family's surplus of apples with our 11 favorite apple dessert recipes.

Find Today's Newest & Best Children's Books!
Looking for newly released books for your child? Try our new Book Finder tool to search for new books by age, type, and theme, and create reading lists for kids!