MAPPING THE EARTH.

Slides:

Advertisements

Similar presentations

How a scientific proof works.

Advertisements

Topic II: Measuring the Earth

Earth’s Shape, Dimensions and Internal Heat & Density

Atmosphere, Hydrosphere, Lithosphere, and Biosphere. 5/21/2015.

Chapter 2 Measuring Earth

The Planet Earth.

 My class will be studying the earth, and so the subject is Geology.  We live in the Biosphere.  That glacier is considered to be part of the Hydrosphere.

Earth is extremely round/spherical and smooth.

Models and Dimensions of Earth

UNIT 2 Earth Dimensions.

Layers of the Earth. Structure of the Earth Structure of the Earth: series of spheres held together by gravity * center of Earth is most dense; it gets.

Latitude-Longitude System –

9/23/14 Aim: What is the true size and shape of the earth? Do Now: 1.How would my neighbor’s dog barking be considered a pollutant? 2. What are the only.

TOPIC 2: MAPPING AND LOCATION. A. Earth Science is broken down into 4 major areas: 1. Geology - study of the Earth. 2. Oceanography - seawater, coastal.

Our Earth. Not What You Think  Earth is not a perfect sphere  Oblate Spheroid  Slightly flattened sphere  Spinning on the axis causes the polar regions.

Earth’s Interior Zones. You have one minute to list everything you know about the Earth.

Do Now: 1) What are the 3 spheres of Earth? 2) Which layer is most dense? 3) We are known as the _____ planet because we are covered by 71% of water.

Dimensions of the Earth. Shape and Composition of the Earth The Earth is close to being a perfect sphere. The Earth bulges slightly at the equator and.

Topic 2: Measuring Earth  How can we determine the shape of the Earth?  What evidence do we have about the shape of the Earth?  What are the parts or.

The Dynamic Earth Chapter 3, sec. 1.

Earth. Models Model is a representation of an object or event.

Chapter 2 Concept Review

Earth’s Size and Shape Measuring the Earth.

Measuring the Earth  Evidence for Earth’s shape  Ships appear to sink as they go over the horizon.  The highest part of the ship is the last to go out.

The Composition and Layers of the Physical Earth

Measuring Earth Midterm Review Topics: Earth’s true shape & evidence Positions on Earth (Latitude, Longitude, Angle of Polaris) Time Zones.

Aim: How do we know the true shape of Earth? Do Now: Describe the shape of Earth using your own terms.

Earth’s Shape, Size and Composition

VOCABULARY Landform Relief map Topographical map Atmosphere Hydrosphere Crust Mantle Outer core Inner core.

Unit 4 THE EARTH. The Earth Contains 3 Spheres 1. Hydrosphere - the liquid layer of Earth which covers about 75 % of the planet; includes oceans, lakes,

Model = anything that represents the properties of an object Physical Types of models: Globes Mathematical Mental Mechanical Graphic Equations Water Molecule.

SCIENCE 6 TOPIC 5. What does the word infer mean?

Earths Systems PAGE 5 OF INB. EQ What are the Earth’s major systems and how do they interact?

Unit Two Measuring The Earth I. The Earth’s Shape A. Evidence the earth is round: Ships gradually disappear over the horizon from the bottom up when.

Chapter 2.1 Earth: a Unique Planet. Three Reasons the Earth is Unique … It is the only known planet with liquid surface water. It is the only known planet.

Earth’s Dimensions Its true size and shape.

Topic 2: MODEL OF EARTH.

Chapter 2 Measuring Earth

What evidence told scientists earth has a curved surface?

Shape and Size of the earth

Dimensions of the Earth

What IS the shape of the Earth?

Section 1: Earth: A Unique Planet

Aim: Describe Earth’s shape, actions and spheres

Review Session Chapter 1 – Planet Earth.

Aim: How do we know the true shape of Earth?

Unit 1 Introduction to Earth Science

Page 1 Topic 2 Measuring Earth Set up your Note Packet.

SWBAT Determine how ancient humans discovered the Earth’s true shape.

Topic 2: Measuring the Earth

Shape of Earth.

Welcome to Earth Science with Mr. Williams!

Topic II Measuring Earth.

AIM: Intro To the Earth Do Now –In your note book tell me why the Earth is a special planet. What features are here that are possibly found no where else?

Earth’s Shape.

Section 1: Earth: A Unique Planet

Shape of the Earth.

UNIT 1 PART 2 Mapping the Earth.

AAIM: DO NOW: AHW:.

Measuring Earth: Earth’s Size and Shape

Earth’s Motion, Shape and Spheres

Do Now: What is the shape of the Earth? How do you know?

Earth Dimensions Allen, Spring '04.

Do Now: Describe the difference between the two shapes below.

1-1 The Shape of the Earth Unit 1: Planet Earth September 24, 2011

Earth Systems: Interior of Earth

Section 1: Earth: A Unique Planet

Presentation transcript:

MAPPING THE EARTH

What do these have in common?

Model Representation of something else Examples? Globe, equation, graph, chart, map Why? Earth, universe are too big. Time is too long.

True Shape of the Earth Slightly Oblate sphere Flattened at poles Bulges at equator

Circumference at Poles: 40,008 km Circumference at Equator: 40,076 km

WHY? Earth rotates and the centrifugal force when it spins causes it to bulge at the equator. Think of a little girl in a dress that twirls around. The dress flares out. Or think of the force that pulls you out when on a merry-go-round!

EVIDENCE THAT THE EARTH IS ROUND

1. Observations of ships on the Horizon

2. Lunar Eclipse - Shadow of the earth on the moon is curved

3. Altitude of Polaris More on that later!!!!

4. Best Evidence that Earth is Round Pictures from outer space

EARTH’S SPHERES

Atmosphere - Envelope of gases surrounding the earth Made of gases so least dense sphere, 1.3 x 10-3 g/cm3 Atmosphere ESRT Page 14

Most dense sphere, 2.8 – 3.0 g/cm3 - Earth’s solid outer layer, “shell of the earth”, crust and upper solid part of the mantle lithosphere Approximately 100 km thick Most dense sphere, 2.8 – 3.0 g/cm3 ESRT Page 10

Hydrosphere - Layer of liquid water that covers the earth 70% of earth’s surface ESRT Page 1 Hydrosphere

Biosphere The portion of the earth and its atmosphere that can support life.

Atmosphere Hydrosphere Lithosphere