Lesson

Crossed Up!

Students will discover that some items in their own kitchens may be contaminated by bacteria. They will be challenged to hypothesize about where bacteria might be found in kitchens and which items might have the most and the least bacteria. Students will develop awareness that bacteria can spread from surfaces to hands, and even to food, and will hypothesize how to control the spread of bacteria.

Grades
6 – 8
IN: Grades 6 – 8
Estimated Time
Three 45-minute class periods
Updated
April 10, 2024
Tags

Background

Lesson Activities

Recommended Companion Resources

Credits

Author

Food and Drug Association (FDA) and National Science Teaching Association (NSTA)

Acknowledgements

The Science and Our Food Supply Curriculum was brought to you by the Food and Drug Administration Center for Food Safety and Applied Nutrition and the National Science Teaching Association.

  • FDA Education Team Leader Food Safety Initiative: Marjorie L. Davidson
  • FDA Science and Our Food Supply Project Director: Louise H. Dickerson
  • FDA/NSTA Associate Executive Director and Science and Our Food Supply Program Director: Christina Gorski
  • FDA/NSTA Science and Our Food Supply Program Assistant: Jill Heywood

Standards

Indiana Content Area Standards

  • English Language Arts.Grade 6.RV.1

    Acquire and use accurately grade-level appropriate general academic and content-specific words and phrases; gather vocabulary knowledge when considering a word or phrase important to comprehension or expression.

    • Vocabulary in Literature and Nonfiction Texts.6.RV.3.2: Determine the meaning of words and phrases as they are used in a nonfiction text, including figurative, connotative, and technical meanings.

  • English Language Arts.Grade 6.SL.1

    Listen actively and adjust the use of spoken language (e.g., conventions, style, vocabulary) to communicate effectively with a variety of audiences and for different purposes.

    • Comprehension.6.SL.3.1: Interpret information presented in diverse media and formats (e.g., visually, quantitatively, orally) and explain how it contributes to a topic, text, or issue under study.
    • Discussion and Collaboration.6.SL.2.1: Engage effectively in a range of collaborative discussions (e.g.,one-on-one, in groups, and teacher-led) on grade- appropriate topics, texts, and issues, building on others ideas and expressing personal ideas clearly.

  • English Language Arts.Grade 7.RV.1

    Acquire and use accurately grade-appropriate general academic and content-specific words and phrases; gather vocabulary knowledge when considering a word or phrase important to comprehension or expression.

    • Vocabulary in Literature and Nonfiction Texts.7.RV.3.2: Determine the meaning of words and phrases as they are used in a nonfiction text, including figurative, connotative, and technical meanings; analyze the impact of a specific word choice on meaning and tone.

  • English Language Arts.Grade 7.SL.1

    Listen actively and adjust the use of spoken language (e.g., conventions, style, vocabulary) to communicate effectively with a variety of audiences and for different purposes.

    • Comprehension.7.SL.3.1: Analyze the main ideas and supporting details presented in diverse media and formats (e.g., visually, quantitatively, orally) and explain how the ideas clarify a topic, text, or issue under study.
    • Discussion and Collaboration.7.SL.2.1: Engage effectively in a range of collaborative discussions (e.g., one-on-one, in groups, and teacher-led) on grade- appropriate topics, texts, and issues, building on others ideas and expressing personal ideas clearly.

  • English Language Arts.Grade 8.RV.1

    Acquire and use accurately grade-appropriate general academic and content-specific words and phrases; gather vocabulary knowledge when considering a word or phrase important to comprehension or expression.

    • Vocabulary in Literature and Nonfiction Texts.8.RV.3.2: Determine the meaning of words and phrases as they are used in a nonfiction text, including figurative, connotative, and technical meanings; analyze the impact of specific word choices on meaning and tone, including analogies or allusions to other texts.

  • English Language Arts.Grade 8.SL.1

    Listen actively and adjust the use of spoken language (e.g., conventions, style, vocabulary) to communicate effectively with a variety of audiences and for different purposes.

    • Comprehension.8.SL.3.1: Analyze the purpose of information presented in diverse media and formats (e.g., visually, quantitatively, orally) and evaluate the motives (e.g., social, commercial, political) behind its presentation.
    • Discussion and Collaboration.8.SL.2.1: Engage effectively in a range of collaborative discussions (e.g., one-on-one, in groups, and teacher-led) on grade- appropriate topics, texts, and issues, building on others ideas and expressing personal ideas clearly.