--- title: 6-8.ESS1.C.1 description: 6-8.ESS1.C.1 Construct a scientific explanation based on evidence from rock strata for how the geologic time scale is used to organize Earth’s 4.6-billion-year-old history. 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.ESS1.C.1 Construct a scientific explanation based on evidence from rock strata for how the geologic time scale is used to organize Earth’s 4.6-billion-year-old history. [![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.ESS1.C.1 Lesson Plans Grade Ranges All K-2 3-5 6-8 [![](https://www.knowatom.com/hubfs/image3-Oct-09-2023-07-06-52-0262-AM.png) ](https://www.knowatom.com/science-phenomena-videos/8th-grade-science/dna-and-mutations) ## [DNA and Mutations In this unit, students explore science phenomena including reproduction, DNA, and inherited traits. In this lesson, students investigate how mutations are a phenomena caused by structural changes to the DNA. This page highlights key components of this lesson.](https://www.knowatom.com/science-phenomena-videos/8th-grade-science/dna-and-mutations) [ VIEW LESSON ](https://www.knowatom.com/science-phenomena-videos/8th-grade-science/dna-and-mutations) [![](https://www.knowatom.com/hubfs/image1-Oct-09-2023-07-13-33-0357-AM.png) ](https://www.knowatom.com/science-phenomena-videos/8th-grade-science/animal-diversity) ## [Animal Diversity In this unit, students figure out connections between genes and heredity to evolution, focusing on figuring out the phenomena of how both genetic information and the environment influence how a population develops over time. Students investigate different kinds of evidence for life’s shared ancestry and then experiment with how adaptations help some organisms survive. Students end with an investigation into artificial selection.](https://www.knowatom.com/science-phenomena-videos/8th-grade-science/animal-diversity) [ VIEW LESSON ](https://www.knowatom.com/science-phenomena-videos/8th-grade-science/animal-diversity) [![](https://www.knowatom.com/hubfs/Grade/Screenshot%20(39).png) ](https://www.knowatom.com/science-phenomena-videos/7th-grade-science/fossils-and-tectonic-plate-motion) ## [Fossils and Tectonic Plate Motion In this unit, students focus on phenomena related to Earth’s ice as they model how glaciers shape Earth’s surface, and investigate how scientists use ice cores to reconstruct Earth’s past climates and environments. In this lesson, students analyze how scientists can use the science phenomena of fossils in rock layers as evidence for past changes on Earth. This page showcases all the components of this lesson.](https://www.knowatom.com/science-phenomena-videos/7th-grade-science/fossils-and-tectonic-plate-motion) [ VIEW LESSON ](https://www.knowatom.com/science-phenomena-videos/7th-grade-science/fossils-and-tectonic-plate-motion) [![](https://www.knowatom.com/hubfs/landforms-book1.jpg) ](https://www.knowatom.com/science-phenomena-videos/6th-grade-science/earth-geologic-history) ## [Earth's Geologic History In this unit, students explore phenomena that change Earth’s surface over time, analyzing how weathering, erosion, and convection in the mantle are three phenomena that help to cycle Earth materials. ](https://www.knowatom.com/science-phenomena-videos/6th-grade-science/earth-geologic-history) [ VIEW LESSON ](https://www.knowatom.com/science-phenomena-videos/6th-grade-science/earth-geologic-history) 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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