NGSS HS-ESS1-6
The Standard
Apply scientific reasoning and evidence from ancient Earth materials, meteorites, and other planetary surfaces to construct an account of Earth's formation and early history.
Next Generation Science Standards
Teacher's field guide
What This Standard Means
What Students Need to Do
- Students combine radiometric ages, material composition, and crater patterns to explain Earth's formation and early changes. They compare evidence from Earth, meteorites, the Moon, and other planetary surfaces. They connect each claim to specific evidence and reasoning.
What Mastery Looks Like
- Students place Earth's formation near 4.6 billion years ago and describe early accretion, melting, differentiation, and impacts in a reasonable sequence. They use specific measurements or observations to support each part. They also explain why evidence from beyond Earth is useful.
Common Misconceptions
- Students may assume Earth's oldest known rock gives Earth's exact age, ignoring crustal recycling. They may treat radiometric dates as guesses or think crater counts give exact dates. Some confuse meteorites with rocks formed on Earth.
How to Assess It
- Give students the ages of a meteorite, lunar rock, and ancient zircon, plus two crater maps. Ask them to write a three-sentence history using two data points and explaining how each supports their account.
Lesson moves
Ways to Teach It
Place dated meteorite, zircon, Moon rock, and crater-image cards on a floor timeline, then add labels for formation, melting, and bombardment.
Write a claim explaining why a meteorite can reveal Earth's age even though it did not form in Earth's crust.
Play Evidence Match by pairing claim cards with radiometric dates, composition data, or crater patterns, then defend each match to a partner.
Compare a lunar crater map with an Earth satellite image, then explain how erosion and plate tectonics remove evidence of old impacts.
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Printable HS-ESS1-6 Worksheet
A ready-to-print activity worksheet aligned to HS-ESS1-6, with an answer key for the teacher on its own page. No account needed.
PDF, US Letter, prints cleanly in black and white.
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Where This Standard Sits
See the whole path on the Earth & Space Science progression map.
Before This Standard
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Related Standards
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Construct an explanation based on evidence for how geoscience processes have changed Earth's surface at varying time and spatial scales.
- HS-ESS2-7
Construct an argument based on evidence about the simultaneous coevolution of Earth systems and life on Earth.
- MS-ESS3-1
Construct a scientific explanation based on evidence for how the uneven distributions of Earth's mineral, energy, and groundwater resources are the result of pa...
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