CK-12 Foundation
Radiocarbon Dating
How do we know how long ago a dinosaur lived or an ancient fire pit was used? Scholars learn about the application of carbon dating and half lives to discover things about the past. They adjust the amount of radioactive carbon in the...
Curated OER
Relative Age Dating
Modeling dough and paper cutouts in science class? Learn about how relative age dating concepts, like the Law of Superposition and cross-cutting relationships, can be used to describe the formation of sedimentary layers.
Curated OER
Relative Dating-Telling Time Using Fossils
Students explore how to read fossil range charts. They develop an knowledge of the strengths and weaknesses of the fossil record. Students become familiar with the concepts index fossil and fossil range. Students use bar graphs to...
NASA
Lava Layering
Take the old baking soda and vinegar volcano to the next level by using it to study repeated lava flows over time, examine geologic features on Earth and Mars, and speculate about some of the formations on Mars.
Curated OER
Relative Dating - Telling Time Using Fossils
Learners use fossil range charts to explain relative dating. They graph for ammonites, marine organisms that went extinct at the same time as dinosaurs.
Virginia Department of Education
Determining Absolute Age
How can radioactive decay help date old objects? Learners explore half-life and radioactive decay by conducting an experiment using pennies to represent atoms. Young scientists graph data from the experiment to identify radioactive decay...
Curated OER
Connection to Fine Arts: Carbon-Dating Masterpieces
In this carbon dating worksheet, learners read about how carbon-14 is used to date historical paintings. They answer questions about carbon dating and its importance.
Curated OER
Geological Time Scale
In this geological time worksheet, student use a geologic time scale to understand the difference between eons, eras, and periods. Then students complete 2 short answer questions.
Curated OER
Time Zones
In this time zones worksheet, students are given a map of the Earth indicating the time zones, the prime meridian and the international date line. Students answer 5 questions about solar occurrences and determine when each would be seen...
Curated OER
Toilet Paper Geologic Time Scale
Students examine and demonstrate the extent of geologic time compared to recent time. They develop a demonstration of geologic time using an unrolled roll of toilet paper, with each sheet of toilet paper representing 20 million years.
Illustrative Mathematics
Carbon 14 Dating in Practice I
How old is the plant? Here is a task that presents the exponential decay function for carbon 14 in a plant. Pupils use the function to estimate the amount of carbon 14 in the plant when it died and analyze the function to find what the...
Curated OER
Unit II: Worksheet 3 - Velocity
Future engineers analyze the motion of Robin, the roller skater, as he moves along a sidewalk. They graph the position versus time for three different occurrences. Questions are asked about the resulting graphs, reinforcing the concepts...
Curated OER
Unit II: Worksheet 1 - Velocity
Beginning physics scholars interpret two graphs depicting position versus time. For each graph, there is a series of questions to answer. The exercise is basic, but beneficial. Consider using it as an assessment of understanding after...
Curated OER
A Date With Chemistry
Students research certain elements and then analyze their potential bonds with other elements in a dating game where the dating pool is comprised of the elements featured on the Periodic Table.
Curated OER
Fossils and Geologic Time
Students explore the development of the geologic time scale. They examine the major time periods in earth's history. Students discuss the role fossils play in helping us understand history.
Curated OER
Geologic Time Scale II
Students research the geologic time scales and the appearance of animals and plants during these eras. They complete a chart indicating the era, period and major events.
Columbus City Schools
The Mystery of Earth’s History
Every living creature can leave a fossil record, yet most fossils belong to extinct organisms rather than ones currently living. Scholars learn about dating rock layers, fossils, and the environment of the past. Pupils understand that...
NOAA
Ocean Exploration
Where am I? The second installment of a 23-part NOAA Enrichment in Marine sciences and Oceanography (NEMO) program starts with pupils guessing the years in which major ocean exploration events took place. The lesson then focuses on how...
Curated OER
Change Through Time
In this evolution worksheet, learners will complete a table by writing in the era and biological event based on 4 different time periods of Earth's history. Students will answer 8 fill in the blank questions based on the different origin...
Curated OER
Who Was Here First? Relative Dating
Students read about and complete question activities for the topic of relative dating. For this relative dating lesson, students read information for the topic and then complete two activities to further their understanding of geologic...
Curated OER
It's Time to Make Time!
Students explore the evolution of time measurement, and explain the relationship of sunrise/sunset to length of daylight. They collect data and calculations to determine length of daylight during a given day.
Curated OER
Introduction to Time
Young scholars explore the concept of time. Through discussion and artistic projects, they define time in their own words and tell how it is used to represent the seasons. Students draw a picture to portray time as it elapses during...
Curated OER
Time Zones and Migration Patterns of the Leatherback Sea Turtle
Students identify the different time zones by plotting the migration patterns of the leatherback sea turtles. They discover that traveling around the worlds includes passage through different time zones.
Curated OER
Modeling Geologic Time
Pupils design, construct and interpret a model of geologic time and investigate change through geologic time.