Are you able to fully submerge a paper towel underneath water with out it getting moist? The reply is sure, you’ll be able to! It wants some science trickery, however you’ll be stunned how straightforward it’s!
When the glass is positioned into the water, air is trapped contained in the glass. The trapped air stops water stepping into the glass.
This model of the experiment is vaguely Halloween themed, so I drew a spider on the paper towel.
Learn how to preserve a paper towel dry underwater
You’ll want
A big bowl or container
Paper towel/kitchen roll
Pens – non-compulsory
Water
Small glass
Directions
Fill the bowl or container with water and examine the glass may be fully submerged contained in the bowl.
Lower the paper towel into quarters.
Fold one part of the paper towel and place it within the backside of the glass. Be sure that it stays on the backside of the cup if you tip it the other way up.
Place the glass the other way up into the water till it’s fully submerged.
Take away the glass. The paper towel must be fully dry!
Strive once more however this time gently tip the glass as you take away it. What occurs?
Why does the paper towel keep dry?
When the cup or glass is positioned into the water, water is making an attempt to get into the cup and air is making an attempt to get out. The 2 forces ( air and water strain ) are balanced so the air stays contained in the cup and water doesn’t transfer in. This can be a nice demonstration of air strain!
Extension duties
Strive utilizing completely different measurement and form cups, does it make a distinction?
Final Up to date on October 16, 2024 by Emma Vanstone
