Presentation is loading. Please wait.

Presentation is loading. Please wait.

LO: students will be able to explain why scientists use models to study scientific phenomena. S2a, S4a What’s this? Hint: I’m not a skeleton!

Published byRafael Hidalgo Rodríguez Modified over 6 years ago

Similar presentations

Presentation on theme: "LO: students will be able to explain why scientists use models to study scientific phenomena. S2a, S4a What’s this? Hint: I’m not a skeleton!"— Presentation transcript:

1 LO: students will be able to explain why scientists use models to study scientific phenomena. S2a, S4a What’s this? Hint: I’m not a skeleton!

2 Earth is not perfectly round!
What shape is the earth? Earth is not perfectly round!

3 Earths actual shape is an oblate spheroid
Which picture would do you think would BEST represent this type of shape?

4 *****The true shape ( true model) of Earth is an oblate spheroid.
LO: SWBAT explain why scientists use models.

5 an oblate spheroid is a sphere that is slightly flattened on the top and bottom and bulging on the sides.

6 ***if Earth were a perfect sphere, its equatorial diameter and polar diameter would be the same!

7 ** accurate measurements show that Earth is not a perfect ball!

8 ***Earth’s equatorial diameter is slightly more than its polar diameter!

9 a person weighs slightly more at the poles than the equator.
Because one is slightly closer to Earth’s center at the poles, one weighs slightly more at the poles.

10 Is the earth’s surface smooth?
NO it is not!!!!!

11 Earth has many rough surface features such as mountains, hills and valleys

12 Do you know what kind of map this is?

13 this is a relief map. Relief maps are maps that show the surface features of Earth in 3-D

14 Relief maps are drawn to scale… the surface features are in proportion to the real surface feature.

15 Since relief maps are in proportion to the real Earth
Since relief maps are in proportion to the real Earth. One can use a proportion equation to determine the size of objects on both the real earth and on the relief.

16 relief height or depth of surface feature (cm)
Actual height or depth of surface feature (km) Relief globe diameter (cm) Earth diameter (km)

17 Percent deviation: Percent deviation from the accepted value
Difference from accepted value Percent deviation from the accepted value X 100 accepted value

18 READ THE DIRECTIONS AND COMPLETE THE LAB.
Independent work: Lab 1-2: EARTH’S SHAPE READ THE DIRECTIONS AND COMPLETE THE LAB. LO: SWBAT explain why scientists use models.

Download ppt "LO: students will be able to explain why scientists use models to study scientific phenomena. S2a, S4a What’s this? Hint: I’m not a skeleton!"

Similar presentations

How a scientific proof works.

How a scientific proof works.
Measuring the Earths Dimensions

Measuring the Earths Dimensions
Topic 2 A look at the Earth’s shape, coordinate systems, topographic maps, and data field analysis.

Topic 2 A look at the Earth’s shape, coordinate systems, topographic maps, and data field analysis.

Types of Maps & Map projections,

Types of Maps & Map projections,
Visualizing Physical Geography Copyright © 2008 John Wiley and Sons Publishers Inc. Chapter 1 The Earth as a Rotating Planet Visualizing Physical Geography.

Visualizing Physical Geography Copyright © 2008 John Wiley and Sons Publishers Inc. Chapter 1 The Earth as a Rotating Planet Visualizing Physical Geography.
Exploring Earth’s Surface

Exploring Earth’s Surface
Latitude-Longitude System –

Latitude-Longitude System –
4/23/2017 What is Earth’s shape?

4/23/2017 What is Earth’s shape?
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.

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.
Do Now: Write three pieces of evidence that told us that the earth was round.

Do Now: Write three pieces of evidence that told us that the earth was round.
Mrs. Degl1 It appears that Earth is a perfect circle, however, it is not!!!!! It is really an OBLATE SPHEROID. What does that mean?????????

Mrs. Degl1 It appears that Earth is a perfect circle, however, it is not!!!!! It is really an OBLATE SPHEROID. What does that mean?????????
GEOG 268: Cartography Ohio Northern University Winter 2001-2002 Hill 200.

GEOG 268: Cartography Ohio Northern University Winter Hill 200.
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.

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.
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.

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.
Earth’s Shape and Size Unit 1. The Earth’s Shape Earth’s shape is nearly spherical (Oblate Spheroid) It is flattened at the poles and bulging at the equator.

Earth’s Shape and Size Unit 1. The Earth’s Shape Earth’s shape is nearly spherical (Oblate Spheroid) It is flattened at the poles and bulging at the equator.
Earth’s Size and Shape Measuring the Earth.

Earth’s Size and Shape Measuring the Earth.
Earth's Shape.

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

Measuring Earth Midterm Review Topics: Earth’s true shape & evidence Positions on Earth (Latitude, Longitude, Angle of Polaris) Time Zones.
Distortion: The Big Problem with Maps. Maps are great tools, but they’re not perfect pictures of Earth’s surface. Maps are 2- dimensional or flat Earth.

Distortion: The Big Problem with Maps. Maps are great tools, but they’re not perfect pictures of Earth’s surface. Maps are 2- dimensional or flat Earth.

Similar presentations

Ads by Google