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  • Heterogeneous
Chemistry and Cooking
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CC BY-NC
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The project is called "Chemistry and Cooking" and it will last about 6 weeks. Students will learn about what matter is, the phases of matter, the difference between physical and chemical properties, as well as physical and chemical changes. The project’s Driving Question, which focuses our work, is “How does an understanding of chemistry impact your cooking?” Students will be involved in hands-on activities and labs that will help them learn the concepts that they will then apply to their final project. The child will work independently on a recipe of their choice to show their understanding of how chemistry impacts cooking.

Subject:
Physical Science
Material Type:
Activity/Lab
Assessment
Curriculum Map
Formative Assessment
Homework/Assignment
Lesson Plan
Rubric/Scoring Guide
Self Assessment
Student Guide
Unit of Study
Author:
Mary Swinford
Krysta Wiltzius
Melissa Wojcik
Date Added:
08/02/2019
Eat Iron?!!
Read the Fine Print
Educational Use
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To gain an understanding of mixtures and the concept of separation of mixtures, students use strong magnets to find the element of iron in iron-fortified breakfast cereal flakes. Through this activity, they see how the iron component of this heterogeneous mixture (cereal) retains its properties and can thus be separated by physical means.

Subject:
Technology and Engineering
Chemistry
Physics
Material Type:
Activity/Lab
Provider:
TeachEngineering
Provider Set:
TeachEngineering
Author:
NSF GK-12 and Research Experience for Teachers (RET) Programs,
Parnia Mohammadi
Roberto Dimaliwat
TeachEngineering.org
Date Added:
09/18/2014
Element, Mixture, Compound
Read the Fine Print
Educational Use
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Students gain a better understanding of the different types of materials as pure substances and mixtures and learn to distinguish between homogeneous and heterogeneous mixtures by discussing an assortment of example materials they use and encounter in their daily lives.

Subject:
Technology and Engineering
Chemistry
Material Type:
Activity/Lab
Provider:
TeachEngineering
Provider Set:
TeachEngineering
Author:
National Science Foundation GK-12 and Research Experience for Teachers (RET) Programs,
Parnia Mohammadi
Roberto Dimaliwat
TeachEngineering.org
Date Added:
09/18/2014
Messin' with Mixtures
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Educational Use
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In this activity, students investigate the properties of a heterogeneous mixture, trail mix, as if it were a contaminated soil sample near a construction site. This activity shows students that heterogeneous mixtures can be separated by physical means, and that when separated, all the parts will equal the whole.

Subject:
Technology and Engineering
Chemistry
Material Type:
Activity/Lab
Provider:
TeachEngineering
Provider Set:
TeachEngineering NGSS Aligned Resources
Author:
Brian Kay
Daria Kotys-Schwartz
Integrated Teaching and Learning Program,
Janet Yowell
Malinda Schaefer Zarske
Date Added:
10/14/2015
Mix It Up
Read the Fine Print
Educational Use
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This lesson plan introduces the properties of mixtures and solutions. A class demonstration gives the students the opportunity to compare and contrast the physical characteristics of a few simple mixtures and solutions. Students discuss the separation of mixtures and solutions back into their original components as well as different engineering applications of mixtures and solutions.

Subject:
Technology and Engineering
Physics
Material Type:
Activity/Lab
Lesson Plan
Provider:
TeachEngineering
Provider Set:
TeachEngineering NGSS Aligned Resources
Author:
Brian Kay
Daria Kotys-Schwartz
Integrated Teaching and Learning Program,
Janet Yowell
Malinda Schaefer Zarske
Date Added:
09/18/2014
Mixture Dualism of Blood
Read the Fine Print
Educational Use
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Students learn about the separation techniques of sedimentation and centrifugation and investigate whether blood is a homogeneous or a heterogeneous mixture. Working in groups as if they are biomedical researchers, they employ the scientific method and make observations about the known characteristics of urine, milk and blood. They probe further by analyzing research on the properties and fractionation modes of blood. As students learn about certain strange characteristics with the fractionation behavior of blood, they formulate hypotheses on the unique nature of blood. Using provided materials —olive oil, tomato juice and petroleum jelly—they design an experiment and construct a blood model. They test their hypotheses by conducting experiments on the blood model, and then propose theories for the nature of blood as a mixture—arriving at the theory of mixture dualism in blood—that blood is a complex mixture system. An activity-guiding handout and PowerPoint® presentation are provided for this student-directed, project-based activity.

Subject:
Education
Material Type:
Activity/Lab
Provider:
TeachEngineering
Provider Set:
TeachEngineering
Author:
Partnerships for Research, Innovation and Multi-Scale Engineering (PRIME) RET, Georgia Tech,
Renuka Rajasekaran
Date Added:
10/14/2015