kidzpark
Home | FAQ | Contact Us | View Cart | Login / Register  


Kids Science Activities

Air pressure and Straw

Materials Required
  • A transparent straw
  • A glass of water
  • A blade

How to do it

  • Take the straw and make a small cut in the middle of the straw.
  • Bend the straw  to 90 degree.
  • Now, place one end of the straw in the glass of water and the other end in mouth of your kid.
  • Ask the kid to blow the air through the straw and ask her to observe what happens.
  • Few water will rise up in the vertical straw.

Explanation

  • Moving air exerts less sideways pressure than still or less turbulent air around it.
  • The moving air at the upper end of the straw(which is kept in the mouth) reduced the pressure in the vertical straw.
  • As the atmospheric pressure on the surface of water was greater than the pressure in the straw, few amount of  water was forced to rise up into the straw.


Add to My Article | Refer this Article | Print this Article


Write your Comments on this Article
Article Title Air pressure and Straw
Your Name
Place of Residence
Your E-mail
Your Comment
 
Security Validation
Enter the characters in the image above
 
Kindergarten Activities
How We Tried To Barbecue Turnips
Splash of colors - Painting
How I Used Solar Energy To Heat My Bath Water.
What I Did Going Around The Mulberry Bush
Planetarium at your home
Can You Tell Me The Animal I Am?
See How I Made A Beautiful Sand Art
Ultraviolet Light In Mineral Water
Do smell and taste have inter relation
Make Clowns with shapes - 1
Magnetic And Non Magnetic Objects
How Doggy Found His Bone
What is the sound?
Gravity
Water density
Paint The Fence With Colors Today
How We Played Animals In Animal Theme Party
Change A White Flower Into Red
My 3 Dimensional Evergreen Trees Forest
How I Turned Into A Smart Egg Buyer