Section 8-3 Radioactive Dating. Intro To Matter Elements – the simplest form of matter (i.e. Hydrogen (H) or Oxygen (O) – Atoms – the smallest particle.

Slides:

Advertisements

Similar presentations

Finding a rock’s birthday

Advertisements

Absolute Dating Radioactive Dating. Radioactivity Almost all of the elements contain radioactive isotopes Isotopes are atoms of the same element with.

8.3 Radioactive Dating.

Radiometric Dating Journal Entry #5 Continued. Radiometric Dating The process of determining the age of fossils by measuring the relative concentrations.

8.3 Radioactive Dating 7.4.d Students know that evidence from geologic layers and radioactive dating indicates Earth is approximately 4.6 billion years.

Radioactive Dating Section 10.3.

UNIT 3 Geologic Time and Fossils

ABSOLUTE AGE Absolute dating- used to determine the age of a rock or fossil more exactly based on the properties of atoms An atom:

Absolute-Age Dating Chapter 21.3.

Sci. 3-3 Absolute Dating: A measure of Time Pages

Absolute Dating Chapter 3, Sec.3. Process to find the approximate age of rocks or fossils.

Page 334 Radioactive Dating

Atoms Elements Molecules Compounds Pure Substance Mixture Solution.

Relative vs. Absolute Dating

Absolute Dating : A Measure of Time

Absolute Dating Chapter 7 Lesson 2.

Geologic History: Absolute Dating Unit 6 Absolute Age.

Determining Absolute Time.  Absolute Time: numerical time using a specific units like years  Isotopes: Form of an element with more or fewer neutrons.

History of Life: Origins of Life Chapter Age of Earth The earth is about 4.5 billion years old How did we measure that? Radiometric Dating = calculating.

Atoms and Study of the Past I. What is an atom? An atom (element) is the basic unit of matter. The Periodic Table displays the 115 known atoms.

Science Earth’s Changing Surface

Tips on Dating. Why Date? Different methods of dating will help determine the actual age of a layer of rock or a fossil Scientists look at how much radioactive.

ABSOLUTE AGE Absolute Dating Radiometric Dating Half Life Isotope Radioactive decay Carbon 14.

A Fossil.  Any method of measuring the age of an event or object in years.

Aim Aim: How do geologists determine the absolute age of a rock? Radioactive Dating I. Radioactive Dating Absolute Age A. Absolute Age – exact age in.

Radioactive Dating Chapter 10. Absolute Dating Process of establishing the age of an object by determining the number of years it has existed Absolute.

ABSOLUTE AGE: Measurements of natural radioactivity in rocks have allowed scientists to understand the numerical age of an object in years.

Chapter 8 Section 2 Handout

Radioactive Dating Chapter 7 Section 3.

Carbon Dating The age of a formerly living thing can be determined by carbon dating As soon as a living organism dies, it stops taking in new carbon.

The half-life of a radioactive isotope explains the amount of time that it takes half of the isotope in a sample to decay.

Table of Contents Titles: Age and Time Page #: 13 Date: 9/12/12.

Absolute Dating.

Radioactive Dating What is Radioactive Decay?

Absolute Age Finding a rock’s birthday. Absolute Age? Give an example of an absolute age of a rock layer… That rock layer is 200 million years old. Remember,

PS.2b Compounds. Compounds are made of 2 or more kinds of atoms which combine in a specific ratio.

 What are the limitations of relative age dating?  What do you think Absolute age dating is?

UNIT 1 Living organisms Natural Science 2. Secondary Education DO YOU REMEMBER WHAT A CHEMICAL COMPOUND IS?

Absolute Age Finding a rock’s birthday. Absolute Age? Give an example of an absolute age of a rock layer… That rock layer is 200 million years old. Remember,

ABSOLUTE-AGE DATING: A MEASURE OF GEOLOGIC TIME. THINK ABOUT IT… How old is the Earth? Can it be determined? What are some tools or methods that scientists.

Atoms, Elements, & Compounds. Elements Element --- any substance that can’t be broken down into simpler substances. Example of an element --- Oxygen,

Chemistry L1: Atoms and Elements Learning Objectives: 1.Describe what an atom is. 2.Describe particle theory. 3.Explain what an element is. 4.Explain how.

Absolute Dating.

Elements, atoms, molecules, mixtures

Ch.3, Sec.3 – Absolute Dating: A Measure of Time

Chapter 6.3 Absolute Dating

I. Absolute Dating A. The process of establishing the age of an object (fossil or rock layer) by determining how long it existed.

Chapter 2.1 Part 2 Elements By Sherry Totten.

(7th) Chapter 8-3 Cornell Notes

AC Vocabulary Chapter 6 Section 3

Atoms, Molecules, Elements, and Compounds

What are atoms, elements, molecules, and compounds?

The actual age of a fossil or rock formation

Chapter 13 Section 3 Absolute Ages of Rocks.

2.1 – The Nature of Matter.

Absolute Dating.

What are Molecules? Section 15-2.

Activity #16- Classification of Matter Chart Make the chart below in your notebook: ATOM ELEMENT COMPOUND MIXTURE MOLECULE.

Absolute Dating.

Absolute Dating.

Unit 2: Chemistry Lesson 2: Classifying Matter Essential Questions: 1

Notes: Radiometric Dating.

Unit 2: Chemistry Lesson 2: Classifying Matter Essential Questions: 1

Absolute Dating.

Absolute Dating Write on right side.

Absolute Age of Rocks Notes

Radioactive Decay.

Absolute Dating.

Life depends on chemistry

The actual age of a fossil or rock formation

Presentation transcript:

Section 8-3 Radioactive Dating

Intro To Matter Elements – the simplest form of matter (i.e. Hydrogen (H) or Oxygen (O) – Atoms – the smallest particle of an element Compounds – two or more elements bonded together (i.e. H 2 O) – Molecules – the smallest unit of a compound The Periodic Table Example

Radioactive Decay When atoms of an element break down (decay) to form another element – Half-life The amount of time it takes for half of the radioactive element to decay Used to determine the absolute age (age in years) of rocks

Determining Absolute Age Potassium-Argon Dating – Used to date rocks because the half-life is 1.3 billion years Example: Carbon-14 Dating – Used to date the fossils of living things because its half- life is 5,730 years Example: