Laura Williams Michelle Garner

Introduction to Physical ScienceC. Dianne Phillips, Instructor

Introduction

In this experiment, we investigate the properties of solids, liquids, and

gases. We’ll also observe changes in matter through a tasty hands-on

experiment.

Project Overview and Objectives

We developed a lesson plan and hands-on activity to enhance a students understanding of the three states of matter. Students will be able to:

• Name the three states of matter.• Identify solids, liquids, and gases.• State the properties of the different states of matter.• Compare and contrast the properties of the different

states of matter.• Demonstrate and apply knowledge using appropriate

safety procedures and technology.

Serving the Community

Our project will serve the community by providing a lesson plan that will be published in the Physical Science lab manual. By utilizing

these materials, future educators can demonstrate the three states of matter.

Curriculum and Standards

In this experiment, we were able to met Arkansas state standards and curriculum in physical science. These standards include:

• PS.5.3.2 Demonstrate physical changes in matter.

• PS.5.3.4 Compare and contrast solids and liquids.

• NS.1.3.9 Apply lab safety rules as they relate to specific science lab activities (see Arkansas Lab Safety Guide).

Technology

• Microsoft PowerPoint

• Camera

• Video Recorder

• Microsoft Word

• Printer

• Internet

Developed Skills

• Organizational and ResearchInformation was retrieved using the internet. Organization skills were a must during the learning process.

• Individual, Communication, and TeamGood communication skills were a must when corresponding and relaying clear ideas to other team members. Several community members were used as vital resources during this process. When working together as a team, various areas of the project can be assigned and deadline met.

• TechnologyTo meet requirements of our EAST EMPACTS Project, several computer programs were used. Various devices such as video cameras were used to present our project.

The Experiment

To demonstrate the physical change of matter from a liquid to a solid, we used liquid

nitrogen to make dippin’ dots.

Supplies Needed

• Two stainless steel bowels• Wisk• Dropper• Safety glasses• Heavy gloves• Small serving cups and spoons• 1 quart of heavy whipping cream• 1 ½ quart half and half• 1 ½ cup of sugar• 5 teaspoons of vanilla extract• 5 liters of liquid nitrogen

Step 1

Wisk the half and half, heavy cream, sugar, vanilla, and other items in the large stainless

steel bowel. Continue whisking until the sugar has dissolved.

Safety with Liquid Nitrogen

Okay, there is one tiny little negative to using liquid nitrogen to make ice cream... it's

dangerous if you're not careful. If you touch the stuff, you can easily freeze tissue and

cause severe damage. Never let liquid nitrogen touch your skin, and be sure to wear

your safety gloves and glasses. Due to the fact that liquid nitrogen can reduce the oxygen concentration in the air, it is also

important that liquid nitrogen be used in a well ventilate area.

Step 2

Pour the liquid nitrogen directly into the second stainless steel bowl.

Step 3

With a dropper, dispense the ice cream mixture into the liquid nitrogen. This makes

tiny beads of ice cream.

Step 4

Serve the Dippin’ Dots and enjoy.

Our Experiences

• The important of how to construct a well organized and easy to follow lesson plan.

• Learning a new way to bring hands-on experience into the classroom.

• Adaptations to this lesson plan and experiment can be used for higher grade levels.

• Communication, within our group, was essential for success in our project.

• Anything can be achieved with hard work and dedication.

Project Video

Acknowledgements

• Dianne Phillips - EAST Lab Facilitator/Instructor

• Stephen Skinner – Lab Curator University of Arkansas

• Harp Elementary – Springdale, Arkansas

References

http://www.harcourtschool.com/activity/states_of_matter/

http://www.chemheritage.org/educationalservices/faces/poly/tutorial/states.htm

• http://dcist.com/2008/05/ice_creampocaly_3.php

• http://aboutblog.net/Images/Wordpress/LiquidNitroghttp://galileo.phys.virginia.edu/classes/635.stt.summer05/Liquid%20Nitrogen%20Ice%20Cream.htmen.jpg

• http://www.stevespanglerscience.com/experiment/liquid-nitrogen-ice-cream

• http://www.kyrene.org/staff/sreed/Science/Lab%20Safety.html