dry ice investigations. questions we have about dry ice

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1 Documentation accompanying Food/Feed/Processing Shipments of Living Modified Organisms Latin America and the Caribbean Regional Training- of-Trainers Workshop Mexico City, MEXICO, 23-27 November 2009 Ricardo Calderón López International Grain Trade Coalition www.igtcglobal.com - [email protected]

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Page 1: Dry Ice Investigations. Questions We Have About Dry Ice

Dry Ice Investigations

Page 2: Dry Ice Investigations. Questions We Have About Dry Ice

Questions We Have About Dry Ice

Page 3: Dry Ice Investigations. Questions We Have About Dry Ice

Student Questions After “Exploring Dry Ice”

If you put water in with dry ice, will it freeze?

Would a normal thermometer break if you put it against dry ice?

If dry ice were to melt, would it be edible? What would happen if you put dry ice in a

hot oven? What would happen if you covered dry ice

with sugar?

Page 4: Dry Ice Investigations. Questions We Have About Dry Ice

Systematic Observations

Marge’s Systematic Observation – What happens when you put dry ice in soap solution?

The Mystery of the Floating Bubbles

Page 5: Dry Ice Investigations. Questions We Have About Dry Ice

Activity 3: Experimenting

Marge’s Experiments – Does temperature affect how fast dry ice turns to a gas?

Page 6: Dry Ice Investigations. Questions We Have About Dry Ice

Student Questions After “Marge’s Experiment”

What would happen if you placed dry ice on a marshmallow? … on a bunsen burner? … in Pepsi?… in Jello? … in hydrogen peroxide? … on a plant leaf? … in salt water?

What would happen if you put acid on dry ice? What would happen if you mixed dry ice with

gasoline? What would happen if you wrap it in foil and

put it in hot water? What would happen to a fish in water if you

added dry ice?

Page 7: Dry Ice Investigations. Questions We Have About Dry Ice

Activity 4: Conducting Dry Ice Investigations

Choosing Investigable Question

Making an Investigation PlanConducting InvestigationsSharing Results of

Investigations

Page 8: Dry Ice Investigations. Questions We Have About Dry Ice

Assessment

Scientific Journal – observe, compare, describe

Energy and Matter questionnaire Open-ended Investigations –

Investigation Rubric Other Suggestions: Investigate

another topic, design a comic strip, “The Royal Society Meets”, Inventive Applications