1. Dry Ice Day October 31st, whenever

2. Dry Ice Day
Purpose: For students to observe CO2 changing in state from solid to gas in amazing ways.

3. Background: Dry ice is carbon dioxide in its solid state.
Remember…dry ice sublimes instead of melts.
Carbon dioxide is found in
the earth's atmosphere
Humans exhale carbon
dioxide gas and plants
use it for photosynthesis.
Carbon dioxide is a colorless,
odorless, and tasteless compound.
Dry ice is -78 degrees Celsius (-109 degrees Fahrenheit)

4. Safety For Dry Ice Day
Do NOT touch dry ice with bare hands, it can damage the skin. Dry ice will BURN exposed skin!!!
Wear safety gear: Gloves, Long sleeves, long pants and goggles
Do NOT inhale the gas.
Do NOT seal dry ice in a
closed container.
Keep the area well ventilated

5. Death by dry ice: Coolers stored in car lead to ‘horrific accident’
July 27, The News Tribune
In a "horrific accident," a woman in Washington died from exposure to dry ice fumes, according to news reports.
The 77-year-old woman was found unresponsive in a car with several containers of dry ice on July 27, according to local news outlet KOMO. The car belonged to the woman's son, an ice cream salesman, who kept four coolers of dry ice in the back of the vehicle. The man's wife had borrowed the car to give the woman, her mother-in-law, a ride home.
But when the man found his wife and mother unconscious in the car, he called 911. The mother likely died of suffocation from the dry ice fumes, and the wife is in critical condition.

6. Experiment 1: Screaming Metal
Materials: Quarters, scoopula and tongs
Procedure: Place the metal against the dry ice. Observe
Think about the temperature of the metal compared to the dry ice.
Think about the specific heat of the metal and how quickly the metal loses heat.

7. Experiment 2- Volume of a gas at really low temperatures
Materials: beaker, acetone dry ice and a syringe.
Procedure: Place the dry ice in a beaker of acetone. Place a seal syringe that contains 30.0 c.c. of air in the dry ice/acetone beaker.
What happens to the volume of air inside the syringe? Why?

8. Experiment 3- Pressure of a gas at really low temperatures
Materials: beaker, acetone, dry ice and a pressure gauge.
Procedure: Place the dry ice in a beaker of acetone. Lower the pressure gauge in the dry ice/acetone beaker.
What happens to the pressure of air inside the pressure gauge ? Why?

9. Experiment 4 – Spooky Fog
Materials: 100 ml of hot water , glass beaker, dry ice.
Procedure: Place 100 ml of hot water into the beaker. Add some dry ice.
Results: What happens? Why do you think this happens?

10. Experiment 5 – What not to do with dry ice
Materials: water, dry ice, test tubes, corks
Procedure: Add 10 ml of water to the test,. Add dry ice and cork the test tube.
Count to 10. Avoid pointing at students…

11. Dry Ice Causes Explosion in Long Island House
January 12, :08:04 AM PST Eyewitness News
STONY BROOK -- Police responding to an explosion in the basement of a Long Island house discovered dry ice that had not been stored properly. A young woman in the Stony Brook house last night called police when she heard the blast, fearing someone had broken in.
Officers found broken glass and a damaged sheetrock wall along with the remnants of a cooler.
The owner of the home, Francisco Lopes - the woman's stepfather - works as a scientist at the SUNY Stony Brook Center for Molecular Medicine.
Lopes, who came home later last night, told police he had brought home some dry ice in a closed glass container to show his daughter, and left it in the basement.
No charges were filed against him.
Police say the explosion did not create any hazardous conditions.

12. Boy Killed as Bottle With Dry Ice Explodes
AUG. 15, New York Times
An 8‐year‐old Coney Island boy was killed and four other boys were injured last night when a soda bottle filled with dry ice exploded in the air, the police said.
The boy, Philip Lopez of 2930 West 30th Street, was pronounced dead at Coney Island Hospital, his jugular vein having apparently been cut by a sliver of glass, according to the police.
They said young Philip had taken some dry ice used in his father's ice cream business, stuffed it in the bottle and tossed it in the air.
The pressure of the, expanding carbon dioxide, according to the police, apparently caused the bottle to explode.
The boy's four companions, who were also showered with glass, were treated at Coney Island Hospital for lacerations of the face and legs.

13. Experiment 6 – Dry Ice Fire Extinguisher
Materials: Fish tank, dry ice, candles, matches and bubbles
Procedure: Light 4 candles of varying height. Add a few pieces of dry ice. Blow bubbles while students wait to see what happens.

14. Lake Nyos, Cameroon
The mysterious death of more than 1,700 villagers and much livestock in north-western Cameroon

15. Experiment 7 – Floating Bubbles
Materials: Fish tank, dry ice, candles, matches and bubbles
Procedure: Blow bubbles into fish tank with dry ice in it
Results: What happens? Why do you think this happened?

16. Experiment 8 – Invisible fire extinguisher
Materials: Fish tank, dry ice, candles, matches and bubbles
Procedure: Fill cup with CO2 and pour onto a lit candle
Do not amaze students.
Results: What happens? Why do you think this happened?

17. Experiment 9 – Microfiber Bubbles
Materials: Flask with dry ice, thistle tube, microfiber glove and bubbles
Procedure: Make bubbles and catch them
Results: What happens? Why do you think this happened?

18. Experiment 10 – Mushroom
Materials: Palmolive, cloths line rope, big tub of water and dry ice
Procedure: Carefully make a big bubble
No pressure …
the class is
almost over

19. Experiment 11 – Acidity of Carbonated Beverages
Materials: Universal indicator, a basic solution and dry ice
Procedure: Add indicator to a base and watch it slowly change color during the class period

20. Experiment 12 – Magnesium Fire Extinguisher
Materials: Magnesium and dry ice
Procedure: Smother a magnesium fire with dry ice

21. Happy Halloween
Test Friday