Why Milk Is Safe Teacher's Page
A Food Safety Unit for Grades 4-6, WebQuest Agricultural Series by Missouri Farm Bureau and Missouri State University 



Milk is a safe and nutritious food source today. Throughout history milk has been a good food source for everyone. However it wasn’t until 1864 when Louis Pasteur developed a new technology called Pasteurization that milk became a safe food source for everyone. At one time Undulant fever was widespread throughout North America and other parts of the world. Many infants perished from drinking contaminated milk. Legislation in the United States requires that all milk products be pasteurized before human consumption. This law has made milk the safe product that it is today in the United States and Britain. Not every country requires pasteurization and Brucellosis and Undulant fever are prevalent throughout the rest of the world.

Your students may read other information concerning the lack of nutrients in pasteurized products. This could be another persuasive research project. However, for this project try to steer students away from this topic.



Collaboration Rubric

Name __________________________________


Research & Gather Information
Does not collect any information that relates to the topic.
Collects very little information--some relates to the topic.
Collects some basic information--most relates to the topic.
Collects a great deal of information--all relates to the topic.

Share Information
Does not relay any information to teammates.
Relays very little information--some relates to the topic.
Relays some basic information--most relates to the topic.
Relays a great deal of information--all relates to the topic.

Be Punctual
Does not hand in any assignments.
Hands in most assignments late.
Hands in most assignments on time.
Hands in all assignments on time.

Take Responsibility
Fulfill Team Role's Duties
Does not perform any duties of assigned team role.
Performs very little duties.
Performs nearly all duties.
Performs all duties of assigned team role.

Participate in Science Conference
Does not speak during the science conference.
Either gives too little information or information which is irrelevant to topic.
Offers some information--most is relevant.
Offers a fair amount of important information--all is relevant.

Share Equally
Always relies on others to do the work.
Rarely does the assigned work--often needs reminding.
Usually does the assigned work--rarely needs reminding.
Always does the assigned work without having to be reminded.

Value Others' Viewpoints
Listen to Other Teammates
Is always talking--never allows anyone else to speak.
Usually doing most of the talking--rarely allows others to speak.
Listens, but sometimes talks too much.
Listens and speaks a fair amount.

Cooperate with Teammates
Usually argues with teammates.
Sometimes argues.
Rarely argues.
Never argues with teammates.

Make Fair Decisions
Usually wants to have things their way.
Often sides with friends instead of considering all views.
Usually considers all views.
Always helps team to reach a fair decision.



Collaboration Rubric by Pickett and Dodge, 2002.

National Education Standards


Health Promotion and Disease Prevention

  • Students will analyze the influence of culture, media, technology, and others on health--Describe ways technology can influence personal health.

Language Arts (Evaluating Data)

  • Students conduct research on issues and interests by generating ideas and questions, and by posing problems. They gather, evaluate, and synthesize data from a variety of sources (e.g. print and non print texts, artifacts, people) to communicate their discoveries in ways that suite their purpose and audience.

Language Arts (Applying Language Skills)

  • Students use spoken, written, and visual language to accomplish their own purposes (e.g., for learning, enjoyment, persuasion, and the exchange of information.

Science and Technology

  • Understanding about science and technology.

Science in Personal and Social Perspectives

  • Science and technology in local challenges.

Social Studies (History of Student's Own State or Region)

  • Understands the people, events, problems, and ideas that were significant in creating the history of their state or region.


  • Students use a variety of media and formats to communicate information and ideas effectively to multiple audiences.
  • Students use technology to locate, evaluate and collect information from a variety of sources.
  • Students use technology tools to process data and report results.
  • Students evaluate and select new information resources and technological innovations based on the appropriateness for specific tasks.
  • Students use technology resources for solving problems and making informed decisions.
  • Students employ technology in the development of strategies for solving problems in the real world.


There should be many print resources for students to access in school and public libraries. Most of the web sites covering Louis Pasteur are written at a higher reading level. Students may need materials that are at lower reading levels that are found in print materials.

Science: Strand 7, Sec. 1C&D
Language Arts: Writing Sec. 1; Speaking and Listening Sec. 4-6

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This page was developed by the late Barbara J. Irwin, reviewed by Lyndon and the late Barbara Irwin and is maintained by Missouri Farm Bureau.


Please address questions to Diane Olson at Missouri Farm Bureau.