Science Objects are two hour on-line interactive inquiry-based content modules that help teachers better understand the science content they teach. This Science Object is the second of four Science Objects in the Nutrition SciPack. It discusses how the body makes use of foods’ nutrients, after food is digested into simpler substances. These simpler substances must then be absorbed through the lining of the small intestine and transported for use throughout the body for physiological processes. In cells, these nutrients and substances derived from them are taken in and react to provide the biochemical constituents needed to synthesize other molecules. Some cells store energy from the breakdown of some nutrients in specific chemicals that are used to carry out the many functions of the cell. The circulatory system moves substances to the cells and removes waste products. Lungs take in oxygen for metabolism and eliminate the carbon dioxide produced, excretory systems rid the body of dissolved and solid waste products, and the skin and lungs rid the body of excess heat energy.
Ideas For Use
Science Objects are two hour learning experiences teachers can use to enhance their understanding of a particular scientific concept. Teachers can access any topic “on demand” from the Internet. Topics are based on the science literacy goals in the national standards (NSES, Science for All Americans, Benchmarks, and the Atlas of Scientific Literacy) and tied to state standards.
Each Science Object provides an understanding of the science content by providing a structured set of learning experiences through simulations and practice assessments. Science Objects challenge teachers to explore and explain real world phenomena and are founded on the principle that learners must be challenged with a problem, observation, data, etc., in order to develop scientific understanding. Science Objects utilize the five phases of inquiry-based learning: Engage, Explore, Explain, Elaborate, and Evaluate
- Articulate that the cells break down food and use the molecules in food to synthesize other substance needed by the body.
- Recognize that some cells store energy from the breakdown of some nutrients.
- Describe the role of the digestive system organs and processes in physically preparing food for digestion (e.g., chewing, muscular contractions) chemically breaking down food (e.g., enzymes in saliva, stomach acids) into simpler substances.
- Recognize that some products of digestion are absorbed into the circulatory system through the lining of the small intestine and some are passed into the excretory system and removed as waste.
- Describe the role of blood in the circulatory system in moving molecules derived from food around to different parts of the body where they are used to synthesize other molecules and participate in chemical reactions.
NSTA also has the great SciGuide and free SciObjects abailable to members. They are a wonderful resource for elementary...
Posted in Life Science
by Patricia Rourke
on Mon May 09, 2011 7:14 PM
The Nutrition SciPack contains a great deal of information about the chemistry and biology related to the food we eat. T...
Posted in Chemistry
by Jennifer Rahn
on Tue Nov 16, 2010 2:44 PM
This is a good idea but a huge topic. I found an interesting connection that would work well with a biology teache...
Posted in Chemistry
by Adah Stock
on Tue Nov 16, 2010 10:55 AM
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|Intended User Role:||Elementary-Level Educator, High-School Educator, Middle-Level Educator
|Educational Issues:||Inquiry learning, Professional development, Teacher content knowledge
|Resource Format:||application/x-shockwave-flash, audio/mp3, image/jpeg, text/html, video/quicktime
|Installation Remarks:||Run the Science Objects System Check to ensure that your system is capable of viewing the simulations: http://ecommerce2.nsta.org/system_check/
|Requirements:||Requires Macromedia Flash Player and Apple Quicktime Player
State Standards Correlation
Use the form below to view which of your state standards this resource addresses.