--- title: 6-8.LS1.C.1 description: 6-8.LS1.C.1 Construct a scientific explanation based on evidence for the role of photosynthesis and cellular respiration in the cycling of matter and flow of energy into and out of organisms image: https://www.knowatom.com/hubfs/Right%20Image.png --- [![Teacher Login](https://no-cache.hubspot.com/cta/default/347944/f56bee57-133e-4975-8055-799f1f23588b.png)](https://cta-redirect.hubspot.com/cta/redirect/347944/f56bee57-133e-4975-8055-799f1f23588b) [Teacher Login](https://app.knowatom.com/signin) [![KnowAtom Logo](https://www.knowatom.com/hubfs/KnowAtom%20Logo.svg "KnowAtom Logo")](https://www.knowatom.com/) # 6-8.LS1.C.1 Construct a scientific explanation based on evidence for the role of photosynthesis and cellular respiration in the cycling of matter and flow of energy into and out of organisms [![Download a Sample Unit](https://no-cache.hubspot.com/cta/default/347944/20eee377-e175-48fe-a039-ae723137a2a6.png)](https://cta-redirect.hubspot.com/cta/redirect/347944/20eee377-e175-48fe-a039-ae723137a2a6) Science & Engineering Practices - [Developing and using models](https://www.knowatom.com/developing-and-using-models) - [Planning and carrying out investigations](https://www.knowatom.com/planning-and-carrying-out-investigations) - [Constructing explanations and designing solutions](https://www.knowatom.com/constructing-explanations-and-designing-solutions) - [Engaging in argument from evidence](https://www.knowatom.com/engaging-in-argument-from-evidence) - [Obtaining evaluating and communicating information](https://www.knowatom.com/obtaining-evaluating-and-communicating-information) Disciplinary Core Ideas - [Weather and Climate](https://www.knowatom.com/weather-and-climate) - [Conservation of Energy and Energy Transfer](https://www.knowatom.com/conservation-of-energy-and-energy-transfer) Crosscutting Concepts - [Patterns](https://www.knowatom.com/patterns) - [Cause and Effect](https://www.knowatom.com/cause-and-effect) [![New call-to-action](https://no-cache.hubspot.com/cta/default/347944/b5a1446e-d782-4a5f-a019-0b3b98c8304f.png)](https://cta-redirect.hubspot.com/cta/redirect/347944/b5a1446e-d782-4a5f-a019-0b3b98c8304f) ## Browse 6-8.LS1.C.1 Lesson Plans Grade Ranges All K-2 3-5 6-8 [![](https://www.knowatom.com/hubfs/image4-Oct-09-2023-06-59-07-0880-AM.png) ](https://www.knowatom.com/science-phenomena-videos/8th-grade-science/cellular-respiration) ## [Cellular Respiration In this unit, students compare the science phenomena of bacterial, plant, and animal cells, figuring out similarities among them all as well as differences. Students then conduct an experiment into how yeast cells extract energy from food molecules. This page highlights components of this lesson. ](https://www.knowatom.com/science-phenomena-videos/8th-grade-science/cellular-respiration) [ VIEW LESSON ](https://www.knowatom.com/science-phenomena-videos/8th-grade-science/cellular-respiration) [![](https://www.knowatom.com/hubfs/image1-Oct-09-2023-07-19-57-9333-AM.png) ](https://www.knowatom.com/science-phenomena-videos/8th-grade-science/food-webs) ## [Food Webs In this unit, students focus on animal populations, studying how all living things interact with and depend on other living things and the environment for survival. For this lesson, students explore how energy and matter move through a particular ecosystem’s food web and can be disrupted by the introduction of invasive species. This page highlights key components of this lesson.  ](https://www.knowatom.com/science-phenomena-videos/8th-grade-science/food-webs) [ VIEW LESSON ](https://www.knowatom.com/science-phenomena-videos/8th-grade-science/food-webs) [![](https://www.knowatom.com/hubfs/Grade/Screenshot%20(43).png) ](https://www.knowatom.com/science-phenomena-videos/7th-grade-science/food-and-energy) ## [Food and Energy In this unit, students explore the organisms that live on Earth’s surface, analyzing how living things are made of cells, which have certain requirements for survival, including food, water, and energy. In this lesson, students figure out the phenomena of energy transfer in living systems with a focus on how energy and matter flow through organisms. This page showcases excerpts from components of this lesson.](https://www.knowatom.com/science-phenomena-videos/7th-grade-science/food-and-energy) [ VIEW LESSON ](https://www.knowatom.com/science-phenomena-videos/7th-grade-science/food-and-energy) [![](https://www.knowatom.com/hubfs/Grade/Screenshot%20(53).png) ](https://www.knowatom.com/science-phenomena-videos/7th-grade-science/rocky-shore-ecosystems) ## [Rocky Shore Ecosystems In this unit, students explore the phenomena of rocky shore ecosystems, studying the interactions between living things and the environment. In this lesson they focus on the science phenomena of how organisms interact with one another in an ecosystem. This page showcases key elements from this lesson.](https://www.knowatom.com/science-phenomena-videos/7th-grade-science/rocky-shore-ecosystems) [ VIEW LESSON ](https://www.knowatom.com/science-phenomena-videos/7th-grade-science/rocky-shore-ecosystems) [![](https://www.knowatom.com/hubfs/image1-Oct-08-2023-09-44-59-4732-PM.png) ](https://www.knowatom.com/science-phenomena-videos/6th-grade-science/photosynthesis) ## [Photosynthesis In this unit, students explore the phenomena of forest ecosystems, studying the science phenomena of interactions between living things and the environment. In this lesson, students investigate how plants carry out photosynthesis to convert the sun’s energy into a form of energy they can use to grow and develop. This page highlights key parts of this lesson. ](https://www.knowatom.com/science-phenomena-videos/6th-grade-science/photosynthesis) [ VIEW LESSON ](https://www.knowatom.com/science-phenomena-videos/6th-grade-science/photosynthesis) [![](https://www.knowatom.com/hubfs/image4-Oct-08-2023-09-44-53-7508-PM.png) ](https://www.knowatom.com/science-phenomena-videos/6th-grade-science/forest-food-web) ## [Forest Food Web In this unit, students explore forest ecosystems, studying the science phenomena of interactions between living things and the environment. In this lesson, students build on their understanding of how energy affects the growth of organisms by exploring the phenomena of forest food webs, and analyzing how the phenomena of drought can have a ripple effect through the ecosystem. This page showcases all components of this lesson. ](https://www.knowatom.com/science-phenomena-videos/6th-grade-science/forest-food-web) [ VIEW LESSON ](https://www.knowatom.com/science-phenomena-videos/6th-grade-science/forest-food-web) [![](https://www.knowatom.com/hubfs/image3-Oct-08-2023-09-44-55-1622-PM.png) ](https://www.knowatom.com/science-phenomena-videos/6th-grade-science/drought-and-tree-growth) ## [Drought and Tree Growth In this unit, students explore forest ecosystem phenomena, investigating the science phenomena of interactions between living things and the environment. In this lesson students discover the phenomena of tree rings and analyze how resource availability affects the ability of different organisms and populations to grow. This page is a high-level extract of this lesson. ](https://www.knowatom.com/science-phenomena-videos/6th-grade-science/drought-and-tree-growth) [ VIEW LESSON ](https://www.knowatom.com/science-phenomena-videos/6th-grade-science/drought-and-tree-growth) Standards citation: NGSS Lead States. 2013. *Next Generation Science Standards: For States, By State*s. Washington, DC: The National Academies Press. 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