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Author(s): Nancy Moreno, PhD, and Barbara Tharp, MS.

Good and Healthy!

Procedure (cont.)

2. Tell students that they will be making one of their favorite foods—ice cream. Go over the steps they will follow to make the ice cream, as listed on the “Good and Healthy!” sheet. Have students identify which steps will require care to keep their food clean.

3. Before beginning, have students wash their hands and work areas.

4. Have each student measure the following ingredients into a small freezer-weight resealable plastic bag: 1/4 cup of orange juice, 1/2 teaspoon of gelatin and 1 tablespoons of sugar. Have students seal, then shake the bags to mix these ingredients together. Have each student add 1/2 cup whole, unflavored milk to his or her bag.

5. Have each team of two students fill a gallon-size resealable plastic bag about halfway with ice, and then add about 6 tablespoons of rock salt.

6. Direct both members of each team to place their bags inside the gallon bag with ice and seal the large bag carefully. Have students take turns shaking the gallon bags until the mixture freezes.

7. Let students remove the smaller bags, wipe or rinse off the salt water and enjoy their sweet treat.

8. Later, have students write a paragraph describing the steps they followed to make the ice cream. Have them include descriptions of the ways they kept their food and work areas clean.

Note: For more information about food and food safety, including free food safety charts, visit the “Keep Food Safe” section of the website.

Funded by the following grant(s)

National Institute of Environmental Health Sciences, NIH

National Institute of Environmental Health Sciences, NIH

My Health My World: National Dissemination
Grant Number: 5R25ES009259
The Environment as a Context for Opportunities in Schools
Grant Number: 5R25ES010698, R25ES06932

Houston Endowment Inc.

Foundations for the Future: Capitalizing on Technology to Promote Equity, Access and Quality in Elementary Science Education