Relative and Absolute Dating Worksheets for Grade 6 Science develop students’ understanding of how scientists reconstruct Earth’s geologic history using rock layers, fossils, stratigraphic relationships, radiometric dating, and correlation. With a TEKS framework and a focused Earth and Space Science context, this resource connects relative dating with numerical age estimates and the organization of the geologic time scale.

Build Geologic History From Evidence

Students examine the principle of superposition, relative dating, absolute dating, unconformities, radiometric dating, fossil succession, and index fossils. They explore how rock layers can be placed in sequence, how radioactive decay provides numerical age estimates, and why index fossils are useful for correlating rocks from different locations. The resource also connects fossils with evidence about past environments and introduces eons, eras, periods, and epochs as divisions of the geologic time scale.

Practice the Language and Reasoning of Geologic Dating

The worksheet gives students several ways to work with the key concepts. Multiple-choice questions address superposition, relative dating, unconformities, radiometric dating, index fossils, geologic time divisions, correlation, and paleoenvironments. True-or-false questions reinforce core statements about rock records, radioactive decay, index fossils, and environmental evidence. Short-answer prompts ask students to distinguish relative from absolute dating and explain how fossils and other evidence help scientists correlate and reconstruct Earth’s history.

Additional practice includes matching, a cloze passage, and an extended response. The written response asks students to bring multiple lines of evidence together by explaining how rock layers, fossils, radiometric dating, and correlation can be used to reconstruct geologic history.

Teacher and Student Support Included

• ✔️ Student worksheet covering relative and absolute dating in geologic history
• ✔️ Separate answer key PDF for checking student responses
• ✔️ Student Notes & Lesson Summary supplement for focused review
• ✔️ Separate Teacher Guide with Learning Objectives, Teaching Tips, Discussion Questions, and Common Mistakes

Flexible Use for Earth and Space Science Instruction

This geologic history worksheet can support direct instruction, guided practice, independent work, review, or assessment preparation. Teachers can use the reading passage to introduce vocabulary before students apply the ideas through selected-response and written tasks. The combination of stratigraphy, fossils, radiometric dating, correlation, and geologic time gives students a connected framework for explaining how evidence reveals the sequence and timing of events in Earth’s history.