## Radioactive Dating Looking at Half-Lives Using M&Ms

Relative Age of Rocks Add to Favorites teachers like this lesson. Here is a good version of a half-life lab using pennies in shoe boxes. New information needed to be introduced with parent and daughter isotopes. Usually takes one or two class periods. Run off and cut out for the game.

## Mmg.records i .title

In my class, terminology was the most difficult part i. No words or sound effects this time! This is such a common standardized test subject, metalhead dating so it's worth covering well.

You can make your own or surf the Web for other images you could use. Hand this form out to your students along with the matching half-life worksheet. Briefly, describe the geologic time scale.

The teacher will help to clear up any misconceptions about the geologic time scale. All mine are copyrighted worksheets so none are included here. These are in worksheet form.

This was a new activity we implemented last tear. Do not copy and paste lessons onto your website. Once all groups finish, each group records their info on the class decay table on the board and we calculate the averages of the class.

## Teaching Geologic History

This is a worksheet from Glencoe that also covers this topic. In this activity, students gain a better understanding of radioactive dating and half-lives. The Missouri is two meters.

This quick assessment allows me to verify student understanding of the concept of superposition. Throughout the presentation, there are several opportunities for the students to Think-Pair-Share answers to the embedded questions. If you make up seven boxes for seven lab groups, you'll need seven dollars in pennies. Students will be examining a number models of different layers of the earth.

## Relative Age of Rocks

Discuss with the students different ways in which scientists can put dates on things, such as tree rings, then begin going through the powerpoint. The geologic time scale lesson includes a PowerPoint with activities scattered throughout to keep the students engaged. Don't see the need for quiet seatwork when we could be doing something more lasting, like a game or lab or powerpoint or other more active activity. Once all groups data is on the table, you can calculate the average for each run and determine a class average. During each trial, students record the number of radioactive parent isotopes and record this in a data table.

Know and explain science information specified for their grade level. This is a worksheet covering concepts from our textbook. Have the other students guess which Era is being dramatized.

This activity would also be easy to adapt when talking about half-lives within a chemistry course. Run off on colored paper and cut out. Click here for a Timeline Scoring Guide. Tell students they will be learning about the geological timescale of the age of the Earth and how scientists determined it.

- The following post will walk you through each of the steps and activities from the geologic time scale lesson plan.
- Good way to review the main geological and biological characteristics of the Eras.
- Once you get through the concepts of radiometric dating, there are a few practice problems in the powerpoint you should go through as a class.

Click here for a lesson on how to teach your students to calculate half-life using a simple table. The Teaching Geologic History Packet is now available. The questions are set up in a standardized format with multiple choice answers. These questions are courtesy of Stephen Dilks, another earth science teacher in my building.

Students will read about relative and *absolute* dating, as well as superposition. **What is the difference between relative dating and absolute dating? Begin the lesson with discussing the difference between relative and absolute dating.** The idea of radioactive dating can be broken down into a relatively simple concept of half-lives that the students should be able to grasp.

Click here for the first game and click here for the second game. Have the entire class stand up in the center of the room, all huddled together. Students will be able to explain what a half-life of a rock is. By having several predetermined stopping points, I am able to give students time to interact with all these new concepts, woodbridge dating and turn the presentation into a more interactive learning experience.

## Search form

Earth Science textbooks usually contain exercises covering this topic also. Students should have the skill to set up a data table and a graph, however, if you want to use this activity with students that have not, you can provide them a template with that information. Watch a quick video of the students working through both card activities. Public Information Logo and Guidelines.

## Compare and contrast relative and absolute dating

- They not only enjoyed this activity, but they really gained a better understanding of it as well.
- Gets them up and moving and thinking as a team!
- You'll want to teach how to sequence rock layers during this unit.

Draw pictures related to important events in your life in the correct place on the timeline. Once this is done, students have some post questions they are given that they should record in their science notebook. This Glencoe site has great stuff. Make sure they put them in chronological order.