Ice Cream ChemistryIce Cream Chemistry

Real Cool ScienceReal Cool Science

Created by Ms. V. Mitchell

Huie Elementary School, Clayton County Public Schools

Objective:1) To create a compound made up of a combination of materials.

Essential Question: What is a chemical compound?

We will explore this question in our experiment today.

CompoundsCompounds

A compound is a substance A compound is a substance formed when two or more formed when two or more elements are chemically joined.elements are chemically joined.

Compounds are different Compounds are different from mixtures.from mixtures.

Water, salt, and sugar Water, salt, and sugar are examples of are examples of compounds. When the compounds. When the elements are joined, the elements are joined, the atoms lose their atoms lose their individual properties and individual properties and have different properties have different properties from the elements they from the elements they are composed of.are composed of.

Mixtures are two or more Mixtures are two or more substances that are mixed substances that are mixed together but not chemically joined. together but not chemically joined. A good example of a mixture is a A good example of a mixture is a salad. There are tomatoes, salad. There are tomatoes, lettuce, cucumbers, and salad lettuce, cucumbers, and salad dressing all mixed together.dressing all mixed together.

MixturesMixtures

No chemical reactions occur No chemical reactions occur between the vegetables and the between the vegetables and the dressing. You can separate dressing. You can separate each of the vegetables from each of the vegetables from each other.each other.

A mixture of salad

Let’s create a chemical Let’s create a chemical compound… ice cream!compound… ice cream!

Materials for each student:Materials for each student:

1 gallon size Ziploc baggie1 gallon size Ziploc baggie1 quart size Ziploc baggie1 quart size Ziploc baggie

1 cup of milk1 cup of milk¼ cup of sugar¼ cup of sugar

1/8 cup of coffee creamer1/8 cup of coffee creamer1 tsp. of vanilla flavoring1 tsp. of vanilla flavoring

2-3 cups of ice2-3 cups of ice½ cup of rock salt½ cup of rock salt

What in the world What in the world are we doing?are we doing?

The gallon bag will act as a The gallon bag will act as a “freezer.” Only non-edible “freezer.” Only non-edible items go in this bag. items go in this bag. The quart bag is your The quart bag is your “dish.” All the edible “dish.” All the edible ingredients go in this bag. ingredients go in this bag. Be very careful to keep the Be very careful to keep the quart bag sealed tight while quart bag sealed tight while making your ice cream.making your ice cream.

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OK, let’s Get Shaking!OK, let’s Get Shaking!

Procedures:Procedures:1. Place the milk, 1. Place the milk,

sugar, creamer, and sugar, creamer, and vanilla in the quart vanilla in the quart Ziploc bag.Ziploc bag.

2. Put the ice and rock 2. Put the ice and rock salt into the gallon salt into the gallon Ziploc bag.Ziploc bag.

Procedures: (continued)Procedures: (continued)

3. Carefully seal the quart Ziploc 3. Carefully seal the quart Ziploc bag and place into the gallon bag and place into the gallon Ziploc bag.Ziploc bag.

4. Seal the gallon Ziploc bag and 4. Seal the gallon Ziploc bag and Shake, Shake, Shake!!Shake, Shake, Shake!!

Procedures: (continued)Procedures: (continued)

5. In approximately 15 minutes, 5. In approximately 15 minutes, unseal the bags and check to see if unseal the bags and check to see if the ice cream is ready.the ice cream is ready.

6. When removing the quart bag, be 6. When removing the quart bag, be careful not to let any of the salty careful not to let any of the salty water into the ice cream.water into the ice cream.

7. Grab a spoon and enjoy your 7. Grab a spoon and enjoy your delicious work!!!delicious work!!!

Clean Up!Clean Up!

Clean up and place all waste in the Clean up and place all waste in the garbage can on your way out the door.garbage can on your way out the door.

The Write StuffThe Write Stuff

Record your responses to these Record your responses to these questions in a paragraph in your questions in a paragraph in your science notebook: science notebook: A. What chemicals did you combine?A. What chemicals did you combine?

B. Did you create a physical change?B. Did you create a physical change?C. Did you create a chemical change?C. Did you create a chemical change?D. What is a compound?D. What is a compound?

Now, Let’s Get Graphic!Now, Let’s Get Graphic!Draw a diagram in Draw a diagram in your Science your Science notebook of an notebook of an atom. Remember, atom. Remember, all matter is all matter is composed of composed of atoms. The atoms. The substances you substances you combined to create combined to create ice cream are all ice cream are all made up of atoms. made up of atoms.

"Ice Cream Chemistry""Ice Cream Chemistry"Real Cool ScienceReal Cool Science

Designed and created by: Ms. V. MitchellDesigned and created by: Ms. V. MitchellUsing SmartBoard TechnologyUsing SmartBoard Technology

vmitchell@clayton.k12.ga.netvmitchell@clayton.k12.ga.net

Public DomainPublic Domain