Description
This is a relative dating activity students will love! This Two Truths and a Lie activity challenges students to read three short science statements, decide which two are true, and identify the “lie.” Along the way, they’ll practice using evidence, applying vocabulary, and thinking critically about Earth Science concepts like rock layers, fossils, and geologic processes.
This resource is flexible and easy to use, play it as a whole-class game, small-group challenge, station rotation, or even a quick warm-up. Whether you want to get your students moving around the room or keep them focused at their desks, this activity adapts to your classroom needs.
✅ Download the preview and check out the sneak peek inside!
🎲 How the Game Works
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Each card has three science statements about relative dating.
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Students discuss, debate, and determine which one is the “lie.”
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They record their answers on a student answer sheet (two versions included, simple and with space for explanations).
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An answer key with explanations helps you review quickly or guide class discussion.
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Four different gameplay options are provided (Three Corners, Hot Potato, Around the Room, and Classic) so you can keep the activity fresh and engaging.
✨ What’s Included in this Relative Dating Activity?
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20 Two Truths and a Lie relative dating cards
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Teacher directions with 4 gameplay variations
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2 student recording sheets (basic + explanation version)
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Complete answer key with explanations
📌 Why Teachers Love It
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Low-prep: print, cut, and play
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Engages all learners: discussion, movement, collaboration, critical thinking
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Flexible use: test prep, stations, bell ringers, exit tickets, or full review days
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Cross-curricular connections: hits NGSS Earth Science and Common Core ELA literacy in science standards
This will support NC’s standard: ESS.8.1.1 “Analyze and interpret data to conclude the relative age of Earth and relative age of rocks and fossils from index fossils and ordering of rock layers.”
This lesson is a great supportive lesson for NGSS Standard MS-ESS1-4.
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Permission to copy for single classroom use only.
Please purchase additional licenses if you intend to share this product.
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