-         Dry Ice Experiment (45 min): In this experiment, students will be utilizing the scientific method to ultimately calculate the volume of dry ice that is equal to the quantity of CO2 that is generated each year by a typical American family. Key curricular concepts that will be covered include the phases of matter, density, and a concrete understanding of the measure of one ton of CO2. ( Resources used: BOCES Density Kits)

Density of dry ice is > H₂O or > 1 g/cc.

Density of CO₂

1.562 g/mL (solid at 1 atm and -78.5 °C)
1.977 g/L (gas at 1 atm and 0 °C)

109⁰F below zero.

1 ton of CO₂ gas is equal to 459,281 L

A 14m x 14m x 3m classroom is 588,000L

1 ton = 2,000 lbs x 454 g / 1 lbs x 1 L CO₂ / 1.977 g = 459,281 L

1 Classroom = 14m x 14m x 3m x 1,000,000 cc / m³ x 1 L / 1,000 cc = 588,000 L

Fun stuff with CO₂

All students get a surgical glove plastic cup spoon full of Dry Ice in there cup.

They put the glove over the top of there cup without spilling dry ice.  They will see the gloves fill up with ?????

Then the students are given a small cup of H₂O.  They remove the surgical glove and add H₂O over the top of their dry ice.

Film canisters, Cups, Soap, laser pointer, balloons, surgical gloves, gummy bears,

CRCS                                                                                                                                      Name ____________________

Dry Ice Experiment                                                                                                         Date_____________________                                                                                                                                                                                             

Objective:  Calculate the volume of dry ice that is equal to the quantity of CO₂ that is generated each year by a typical American family.            

Assumptions:

The density of CO₂ gas at 0⁰ C and 1 atm of Pressure = 1.977 g/L

The Density of Air at 0⁰ C and 1 atm of Pressure = 1.2754 g/L

1 ton (US) of CO₂ gas is equal to 459,281 L                       

A 14m x 12m x 3m classroom is 504,000 L

A typical American Family is a 5 person Household generating 130 Tons of CO₂ eq/year.

How many classroom equivalents are there in Cuba Elementary School?

Procedure:

Set up and observe the sublimation of Dry Ice in a cup with a surgical glove over it.

Set up and observe the sublimation of Dry Ice in a cup submersed in water.

Set up and observe the sublimation of Dry Ice in a cup submersed in water with a few drops of dish soap.

Set up and observe the sublimation of Dry Ice in a film canister.

Calculate the volume of CO₂ that a typical American Family generates each year in the space below.