Dry Ice Experiment - The Screaming Quarter

http://www.sciencebob.com - This little demonstration shows what happens as dry ice sublimates (turns to a gas) and then tries to escape around a quarter. The gas causes the quarter to vibrate very fast and create a rather humorous screaming sound. Caution: Only handle dry ice with gloves...it's -109 degrees F!

Category:

Education

Tags:

• dry
• ice
• science
• bob
• Halloween
• experiments
• screaming
• quarter

[liquidrock2u]

Bob, have you ever met, heard or watched Steve Spangler before?

[ScienceBob]

@liquidrock2u I have met, heard, AND watched Steve. He's a great educator and a nice guy as well!

[KamaDx]

Hey, Bob! How long will the fog effect from the "potion" last? Might be cool on a halloween party if it lasts the whole evening!

[ScienceBob]

@KamaDx The effect is short lived, as soon as the coin gets cold the reaction slows down and stops.

[iiElaineXD]

i can learn from BOB than i do in science calss

[RabbitDance]

That is cool. BOB, YOU ARE MY HERO! <3

[TboneIsRogue]

@iiElaineXD Something tells me you need to learn from your English teacher as well.

[tmacsgvs]

i remember doing this in 8th grade with a spoon

[K4nN0nify]

ur the best!

[wickedqueenamanda]

Science Bob, you are amazing! If teachers would show your videos in schools, I'm sure more kids would love science :)

[archer3420]

were the hell am i gonna get dry ice

[09hotie1]

you could stick the quarter in the ice it should vibrate :D but that was funny! XD