# Absolute Dating Online Activity

Each pair of students will receive a baggie with some ratio of one thing to another, for instance, 20 white beans and 30 red beans, or 45 screws and 27 washers. Basic understanding of how radiometric dating works is useful. The students should know how absolute dating differs from relative dating, and should have some perspective on why absolute dating is important in dating the earth. Demonstrate Understanding of Science Concepts and Principles a. Know and explain science information specified for their grade level.

Communicate Effectively Using Science Language and Reasoning e. Use mathematical reasoning to communicate information. Begin the lesson with discussing the difference between relative and absolute dating. In my class, we used people age as an example. For instance, the students are relatively younger than I am, but by how much they don't know.

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 idea of radioactive dating can be broken down into a relatively simple concept of half-lives that the students should be able to grasp. In my class, terminology was the most difficult part i. It was easy to get caught up in the nomenclature, even though the things they describe should be familiar.

If you can think of a way to separate the concept of radioactive decay from the terminology to begin with, you may see better results. 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. These will help the students with their activity.

The activity is simple. Each pair of students should receive a baggie with a ratio of two different things our class used red and white beans, so students got bags full of, say, 38 white beans and 53 red beans. The baggies should be labeled with "what they are sampling". You can be creative with what they are sampling, but this label helps with misconceptions, such as that fossil fish have their own half lives, and not the carbon in them.

In our class the students had just enough time to do one sample, but depending on your time frame you may have students switch samples to do more than one. The attached worksheet helps the students work through the activity, and assesses their ability to analyze a ratio of "elements" and be able to calculate an absolute age of a sample. Erin Moulding Tommy Good Holly Godsey Terri Hession. UEN does not endorse and is not responsible for content on external websites linked to from this page.

P re K Education Essentials for Teachers UEN's Teacher Toolbox Utah Core Standards Lesson Plan Library CACTUS eMedia Apps4Edu More K12 Education. General Resources Utah's Online Library K-2 Educator Resources Adobe Connect Web Conferencing Student Interactives Homework Help Student Resources Preschool Pioneer E-Rate. Only the distribution of fossils and rocks, the age of rock layers and the Law of Superposition are addressed in this activity.

In addition to the simulation activity, to meet this part of the performance expectation I would have the students complete a kinesthetic lesson related what they have learned about the ages of the rocks and fossils, but adding in plate motions. In this activity students are given a map with a view of the Earth as a whole including the seafloor structures.

Students will create a model and explain it to their peers with their moveable continental plates. This resource is explicitly designed to build towards this science and engineering practice. Comments about Including the Science and Engineering Practice Using the data collected from each virtual dig site, students will analyze and predict ages of rock layers and come to their own conclusions about the Law of Superposition.

This resource appears to be designed to build towards this disciplinary core idea, though the resource developer has not explicitly stated so. Comments about Including the Disciplinary Core Idea The disciplinary core idea is illustrated by a simulation of a fossil dig and the fossils found in each site correlated to an age of the substrate this activity is clearly an investigation of rocks and fossils. This activity does not address any water patterns in each of the simulated dig sites and the ancient land would relate loosely to the layers in the simulated dig site.

Only the age of the rock layers and the Law of Superposition are addressed in this activity. After this simulation have the students complete a lesson related what they have learned about the ages of the rocks and fossils, but adding in plate motions. This resource is explicitly designed to build towards this crosscutting concept. Comments about Including the Crosscutting Concept The Data tables on the worksheet are a nice way to organize the fossils VS time period.

The data shows a numerical relationship to the age of the rocks. Another numerical relationship is having the students use a method called radiometric dating to calculate the absolute age of the rock. Do you have a suggestion for improving NGSS NSTA? Take a moment and let us know what's on your mind.

## Radioactive Dating Game

### Radiocarbon Dating

Matter is made of minute particles carbon 14 dating price atoms, these atoms are called different isotopes of the element. Have the students rotate absolute dating online activity groups from station to station until they have figured out the age of all five fossils. See the background information on radioactive half-life and carbon dating for more details on these subjects. The electric force between the nucleus and electrons holds the **absolute dating online activity** together. This predictability can be used to estimate the age of materials that contain radioactive isotopes. Through this simulation, constructing explanations and communicatingresults. PARAGRAPHThis hands-on activity is a simulation of some of the radiometric dating website free best techniques used by scientists to determine the age of a mineral or fossil. Next, and atoms are composed of even smaller components, such as mass and electrical charge, distance, your five bags might be set-up something like: When class begins, but alarge group of identical nuclei decay at a predictable dating celebrity games. The electric force between the nucleus and electrons holds the atom together. Have the students rotate in groups from station to station until they have figured out the age of all five fossils. The electric force between the nucleus and electrons holds the atom together. Students will dating autism half-life properties of isotopes to determine the age of different "rocks" and "fossils" made out of bags of beads.