By Cyrille Crespi and Young Jun Eo. Tree Rings The rings in trunks are also an instrument for studying the past. The widths of tree rings changes on how.

Slides:

Advertisements

Similar presentations

Natures Weather Logs 5 th Grade Science 5.8A and 5.9A.

Advertisements

Radiometric Dating and Half Life

Earth Science Chapter 21 Section 3

Warm Up, September 24th, ) In the northern hemisphere, the day of the year with the longest time between sunrise and sunset occurs on which continent?

21.3 – Absolute-Age Dating Objectives

Our Changing World 2.5.

Jeopardy Vocabulary Rock Layers FossilsGeologic Time Random Facts Metric System Final Jeopardy.

Climate Change: Past, Present and Future. Warm up: 1.Sketch a graph (Global Temperature vs. Time) for the past 20,000 years and predict how climate has.

Section 9.1 Discovering Past Climates

How a Tree Grows.

Long-Term Changes in Climate Changes by Andrew Nguyen, Taylor Canfield, and Chase Saeger.

Variations of tree ring widths  climate variations.

Paleoclimate Data Puzzle

Cores: Mud & Trees Power Point by: Jessica Oldroyd Scientist: Anne Krawiek.

Chapter 18.3: Long-term changes in climate page 636 Key Concepts: What principle do scientists follow in studying ancient climates? What changes occur.

{ Natural Changes in Climate.  8.9 Long Term and Short Term Changes in Climate  8.10 Feedback Loops and Climate  8.11 Clues to Past Climates.

What do you know about climate? What do you want to know to understand climate?

Chapter 4 Sections 3 and 4 Long Term Changes in Climate Global Changes in the Atmosphere.

Paleoclimate Lida Teneva, Tristan Lindot The proxies: corals, ice cores, tree rings, ocean and lake sediments, cave stalagmites, sedimentary rocks, etc.

Changes in Time Quiz Bowl. Question Define Evolution.

Climate Change Global Warming Greenhouse Effect

Absolute Time. Historical Methods Erosion and Sedimentation  Scientists estimate the amount of time it would take for the needed erosion or sedimentation.

What evidence supports the hypothesis that carbon dioxide is linked to average global temperature? 2 main lines of evidence: Direct measurements Indirect.

Discovering Past Climates

Proxy Records Ice Cores Dendrochronology Sediment records

21.3 – Absolute Age Dating. Absolute Age Dating Enables scientists to determine the numerical age of rocks and other objects.

Geologic Time Rocks record geologic events and the changing life forms of the past. Uniformitarianism: The forces and processes that we observe today have.

Jeopardy Vocabulary Rock Layers More Vocabulary Geologic Time Random Facts Metric System Final Jeopardy.

LET’S PLAY JEOPARDY!! VocabularyD.O.S.PotluckPowerPoint How Fossils are Made $100 $200 $300 $400 $500 Final Jeopardy.

PLANTS AND TREES Plants and trees are living things…. This is a plant This is a tree.

Climate Changes Past and Future. Defining Climate Change  Response of Earth-atmosphere system to changes in boundary conditions  What external factors.

Predicting Past Climates Huzaifa and Shajee. We will talk about: Predicting Past Climates: Ice Cores Record temperature data by trapping gases such as.

3.5 – Records of Past Climates Tree Rings, Fossils Coral Reefs, & Ice Cores.

Paleontologists. Purpose of Fossil Record Organisms have features that show details about their lifetime Fossils are the only thing we have to find out.

DAILY REVIEW #3 8.What can scientists learn about Earth from studying the bubbles in ice cores? 9.You are observing an ice core sample and notice that.

Resources What are resources? Resources are materials that can be used and have value What are some resources that people use? Fossil Fuels, Wind, Solar,

AP Biology Dendrochronology Tree Dating Lab.

ICE CORES AND TREE RINGS. Greenhouse Effect and Global Warming So, after watching the video my question is…. Are the Greenhouse Effect and Global Warming.

Earth’s Age + Evidence. WARM UP Write your homework – leave it to be stamped! Get your homework out to be checked! Update your Table of Contents for today!

Earth’s Age + Evidence. WARM UP Write your homework – leave it to be stamped! Get your homework out to be checked! Update your Table of Contents for today!

Oxygen isotopes and climate. The long term average of temperature and precipitation (30 years)

Jackie, Ali, and Jon  Paleontology is the study of fossils and the remains of life before.

Uncovering Earth’s Past Date: 4/3/13 p. 111 in ILL.

Evidence of Global Warming and Consequences

Proxy Measures of Past Climates Current Weather Current Weather Finish Cryosphere Finish Cryosphere Significance of Climate Proxies Significance of Climate.

By Lyndsie Errett. What Is A Crystal Crystals are solid materials which the Atoms are in arranged in a regular pattern. Many substances can grow in geometric.

 9-11 ES3D Data gathered from a variety of methods have shown that Earth has gone through a number of periods when Earth was much warmer and much colder.

Purpose: How do we use dendrochronology?

Absolute-Age Dating 8 th Grade Earth and Space Science Class Notes.

Absolute Time Benefits: –Tell you how old something is. –If two ages are known for different events then you can calculate the time between to see how.

Absolute Age Scientists can use several methods to determine absolute age: Radioactive decay Radiocarbon dating Tree ring dating Ice cores Varves.

Q:How is life impacted by the topography of the region? A:Simply put Yellowstone is a tourist attraction that brings in millions of tourist a year,

Discovering Past Climates

Studying Past Climates

STUDYING PAST CLIMATES. STUDYING CLIMATE IN THE PAST Paleoclimatologists study past climates They use Proxy records; which are stores of information in.

Evidence of Climate Change page 18 We all have heard the term ‘global warming’ but is there any evidence that our climate is changing?

The Rock Record Section 2 Section 2: Determining Absolute Age Preview Objectives Absolute Dating Methods Radiometric Dating Radioactive Decay and Half-Life.

Earth’s past is revealed in rocks and fossils

absolute age: identifies actual age of a rock layer if actual time of two events is known, the length of time between two events can be calculated.

What do fossils tell us about Earth? What do fossils tell us about life in the past?

What makes a good argument? Make a list of things you think contribute to a convincing argument.

1.Tree Rings. 2.Glacial Ice Cores 1.Tree Rings 2.Glacial Ice Cores 3.Ocean Sediments - The ratio of oxygen 16 to oxygen 18 preserved in the steady rain.

LONG AND SHORT TERM CHANGES IN CLIMATE. LONG TERM CHANGES Continental Drift When continents move, ocean currents and wind patterns change which affects.

Climate & Weather I-7. Key Question What evidence suggests that climate has changed in the past?

Studying Past Climates

What is a Fossil? Traces or remains of living things from long ago.

Parts of a tree.

Chapter 4: Views of Earth’s Past

Radioactive Dating.

Studying Past Climates

Presentation transcript:

By Cyrille Crespi and Young Jun Eo

Tree Rings The rings in trunks are also an instrument for studying the past. The widths of tree rings changes on how much the tree grow. If the tree has a lot of rings that means that it is very old. One ring is one year if the tree is in good condition.

Those pictures shows the rings of trees.

Ice Core An Ice core is a cylindrical sample that shows the age of the ice layer that have built up over 1000 years ago. It is similar as rock layer. Differences in the oxygen atoms in ice at different levels present how long ice age and warm period finished.

Ice Core This is the measurement of the ice core.

Quiz Questions Q1.What show Tree Rings??? A1. It shows the age and the growth of a tree. Q2. What’s similar as ice core? A2. It’s rock layer~! Q3.How does the tree ring and ice core related?????????? A3.-They both show the age of an object or event~! Bonus Question! How old is a tree that has around 50 rings? Answer-It is around 50 years old if the tree is in good condition~!

Thanks For Watching~!