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Carbon TIME Plants Unit Presentation NSTA 2017.pdf
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Description
Science and Engineering Practices
Ask questions that arise from careful observation of phenomena, or unexpected results, to clarify and/or seek additional information.
Construct, use, and/or present an oral and written argument or counter-arguments based on data and evidence.
Plan an investigation or test a design individually and collaboratively to produce data to serve as the basis for evidence as part of building and revising models, supporting explanations for phenomena, or testing solutions to problems. Consider possible variables or effects and evaluate the confounding investigation’s design to ensure variables are controlled.
Disciplinary Core Ideas
The process of photosynthesis converts light energy to stored chemical energy by converting carbon dioxide plus water into sugars plus released oxygen.
The sugar molecules thus formed contain carbon, hydrogen, and oxygen: their hydrocarbon backbones are used to make amino acids and other carbon-based molecules that can be assembled into larger molecules (such as proteins or DNA), used for example to form new cells.
As a result of these chemical reactions, energy is transferred from one system of interacting molecules to another. Cellular respiration is a chemical process in which the bonds of food molecules and oxygen molecules are broken and new compounds are formed that can transport energy to muscles. Cellular respiration also releases the energy needed to maintain body temperature despite ongoing energy transfer to the surrounding environment.
Crosscutting Concepts
The total amount of energy and matter in closed systems is conserved.