introduction to earth science : earth science: chapter 1

Introduction to Earth Science:

EARTH SCIENCE:Chapter 1

Questions: ????What is the goal of….

ArtArchitecturePoliticsScience……….?????

Describe how different cultures contributed to our modern science?????

The Scientific Study of EarthChinaGreeks

http://galileoandeinstein.physics.virginia.edu/lectures/thales.html

Mayans The Mayans also were gifted mathematicians who independently

developed the concept of zero, and astronomers who deduced that a solar year was slightly more than 365 days. Despite these achievements, the Mayans and other Meso-American cultures failed to discover the utility of the wheel.

Others…myths and legends for events…

Branches of Earth ScienceGeologyOceanographyMeteorologyAstronomyEnvironmental Science

Interconnectedness….

Practice Quiz___1. Predicts the weather___2. studies air pollution___3. Plans water supplies

for cities and towns___4. studies the eruption

of volcanoes___5. Measures the

depths of the sea___6. Studies meteorites

to determine if life exists elsewhere

A- AstronomyM- MeteorologyG- GeologyO- Oceanography

Scientific Method

Alter or Form New Hypothesis

Variables: Dependent and Independent

Control Group

http://www.globalfuturist.com/The Extreme Future by James CantonNanoTech by James Canton

1. An example of a sensor with ______ accuracy and ______ precision

Suppose a lab refrigerator holds a constant temperature of 38.0 F. A temperature sensor is tested 10 times in the refrigerator. The temperatures from the test yield the temperatures of: 39.4, 38.1, 39.3, 37.5, 38.3, 39.1, 37.1, 37.8, 38.8, 39.0. This distribution shows no tendency toward a particular value and does not acceptably match the actual temperature.

2. An example of a sensor with ______ accuracy and ______ precision

Suppose a lab refrigerator holds a constant temperature of 38.0 F. A temperature sensor is tested 10 times in the refrigerator. The temperatures from the test yield the temperatures of: 37.8, 38.3, 38.1, 38.0, 37.6, 38.2, 38.0, 38.0, 37.4, 38.3. This distribution shows no impressive tendency toward a particular value but each value does come close to the actual temperature.

3. An example of a sensor with ______ accuracy and ______ precision

Suppose a lab refrigerator holds a constant temperature of 38.0 F. A temperature sensor is tested 10 times in the refrigerator. The temperatures from the test yield the temperatures of : 39.2, 39.3, 39.1, 39.0, 39.1, 39.3, 39.2, 39.1, 39.2, 39.2. This distribution does show a tendency toward a particular value but every measurement is well off from the actual temperature.

4. An example of a sensor with ______ accuracy and ______ precision

Suppose a lab refrigerator holds a constant temperature of 38.0 F. A temperature sensor is tested 10 times in the refrigerator. The temperatures from the test yield the temperatures of: 38.0, 38.0, 37.8, 38.1, 38.0, 37.9, 38.0, 38.2, 38.0, 37.9. This distribution does show a tendency toward a particular value and is very near the actual temperature each time.

PurposeDefine the purpose(s) of this lab activityABC

ab

ProceduresList of materialsMethods / Directions

Give steps of how to replicate the lab

Earth Science Lab (8/31/2010)

Group 1

Group 2

Group 3

Group 4

Average

Actual

%Error

1 Hematite 3.7 4.6 4.7 4.0 4.3 5.12 Calcite 2.6 2.5 2.3 2.5 2.73 Graphite 2.1 2.1 2.3 2.2 2.24 Chalcopyrite

3.8 4.2 4.3 4.0 4.2

5 Galena 6.5 11.0 5.0 4.3 6.7 7.5How Accurate?How Precise?

% error = (accepted value-experimental value/ E.V. ) x 100

ResultsGive YOUR groups results for each

mineral’s specific gravity and YOUR groups error. What was your class average specific gravity for the minerals and YOUR class error.

ConclusionEvaluate the accuracy , precision, and error for

your group and class on this lab activity

Did your data support the following statement… the higher the specific gravity the higher the error… support.

Extra credit: What material do you think cube A,B, and/or C is made of… support your reason

An example of a sensor with good/bad accuracy and good/bad precision

An example of a shooter with good/bad accuracy and good/bad precision

Suppose a lab refrigerator holds a constant temperature of 38.0 F. A temperature sensor is tested 10 times in the refrigerator. The temperatures from the test yield the temperatures of : 39.2, 39.3, 39.1, 39.0, 39.1, 39.3, 39.2, 39.1, 39.2, 39.2. This distribution does show a tendency toward a particular value but every measurement is well off from

the actual temperature.

Chapter 2 : Earth as a System

SectionsEarth Basics:

IntroductionEarth’s InteriorEarth as a MagnetEarth’s Gravity

http://outreach.as.utexas.edu/marykay/assignments/eratos1.html

Energy in the Earth System

Ecology

Section 2.3 … EcologyWhat is Ecology???

Define Ecosystem:

ProducersConsumersDecomposers

Healthy ecosystem needs to have a balance of P/C/Decomps.

Balancing Forces in EcosystemsCarrying Capacity???

Ecological Responses to Change???Ecosystems react to changes in ways that

maintain or restore balance in the ecosystem…

EX: organisms will migrate back into damaged areas in predictable patterns.

Energy Transfer and Food Webs

As you move up the pyramid, more energy is lost at each level. The least amount of total energy is available to organisms at the top of the pyramid.

Key Theme in Ecology:Interconnectedness

UV RADIATION ALERT IN PUNTA ARENAS Written by Mercopress   

Saturday, 14 November 2009

Punta Arenas authorities warned this weekend that especially high indexes of ultra violet (UV) radiation have been recorded and recommended that local residents take the normal precautions: limiting time exposure to the sun, wearing long sleeves and wide brim hats, UV protection sunglasses and sun cream.

They also cautioned that even UV rays are equally intense an dangerous with cloudy skies

Human Stewardship of the Environment: Ecological balances can be disrupted by human activity. By using fossil fuels, land and water resources, and other natural resources wisely, many people are helping keep Earth’s ecosystems in balance.