Weather vs. Climate Weather: The general condition of the atmosphere at a particular time and place. Climate: The general weather conditions over many.

Slides:

Advertisements

Similar presentations

Chapter 23 Modern Earth Science

Advertisements

Atmosphere and Air Pressure Notes. Define atmosphere Atmosphere – The whole layer of air that surrounds Earth – A mixture of gasses – Keeps Earth warm.

Reading for Tuesday: Chapter Reading for Tuesday: Chapter Homework 11.1 – Due Tuesday 4/14/15 Homework 11.1 – Due Tuesday 4/14/15 Chapter.

The Air Around You Section 15:1.

The Nature of Gases Gas Pressure –the force exerted by a gas per unit surface area of an object Due to: a) force of collisions b) number of collisions.

GASES. GASES AND PRESSURE Why are gases so unique?

EQ: What is air? Classroom Unsquared. Air is a mixture of gases held around the Earth by the pull of gravity. The gases are about 78% Nitrogen 21% Oxygen.

Pressure. The amount of force an object puts on a surface. Pressure is measured by a barometer. Atmospheric pressure comes from air being pulled down.

Pressure. Remember, Gas Volume Changes…  Suppose you have a one liter bottle of air. How much air do you actually have?  A liter of air means little.

KINETIC MOLECULAR THEORY AND PRESSURE 13.3: pgs. 474 – 478 & 13.1: pgs

May 1, 2013 AGENDA: 1 – Bell Ringer & Part. Log 2 – Review HW 3 – Demo: Boyle’s Law 4 - CN: Charles’ Law 5 – Practice Problems 6 – Demo: Charles’ Law.

1 Partial Pressure Pressure of individual gases in a mixture.

Geosphere or. Atmosphere The surrounding air of the Earth.

Jeopardy $100 Section 1Section 2Section 3 Higher Thinking Vocabulary $200 $300 $400 $500 $400 $300 $200 $100 $500 $400 $300 $200 $100 $500 $400 $300 $200.

The Atmosphere.

At ppt Air Pressure CH 15 Prentice Hall p

Homework Check (The Ideal Gas Law) 1.If I contain 3 moles of gas in a container with a volume of 60 L at a temperature of 400 K, what is the pressure inside.

Atmosphere Vocabulary 7 th Grade Earth Science. Directions Make 3 columns in your science notebook Title the columns WORD, DEFINITION, & SENTENCE Write.

Nature of Gases 1 – gases have mass (low density) 2 – particles glide past one another (flow) - fluid 3 – easily compressed 4 – fill containers completely.

Chapter 18 Dalton’s Law of Partial Pressures. We all live in the ocean of air, called the atmosphere.

EARTH’S ATMOSPHERE: Properties of Air. The Earth’s Atmosphere: Properties of Air Earth is covered by a blanket of air called the atmosphere. The atmosphere.

The Atmosphere Notes 7th Grade Science.

Friday January 22, 2010 (Discussion and Notes). List the five major points of the Kinetic-Molecular Theory of Gases. Bell Ringer ??

Water and Weather Chapter Five: Earth’s Atmosphere 5.1 The Atmosphere 5.2 Layers of the Atmosphere 5.3 Earth is Just Right.

Section 1: Characteristics of the Atmosphere Objectives: Describe the composition of Earth’s atmosphere. Explain how two types of barometers work. Identify.

Section 1: Characteristics of the Atmosphere

How Much Pressure? Q - A balloon is filled with pure oxygen. What is the pressure of the oxygen in the balloon? A - Atmospheric pressure. If it wasn’t,

What do we call these things? 6 Atoms which happen to be of 3 different elements.

Air Pressure. Does Air Have Mass?  Air consists of atoms and molecules, which have mass.  Because air has mass, it also has other properties, including.

Air Pressure & Layers of the Atmosphere

Feb. 11, 2014 AGENDA: 1 – Bell Ringer 2 – Review HW (Charles’) 3 – CN: Lussac’s Law 4 – Practice Problems 5 – Demos: Gas Laws  Boyle’s Law  Charles’

Fluid Pressure. 1. The atmosphere is a thin layer of gasses that surrounds Earth, and held in place by gravity.

Atmosphere. Atmosphere Composition: Gases - nitrogen, oxygen, argon, other gases Compounds – carbon dioxide, water vapor.

How do people with arthritis know when it’s going to rain?

15.2 Air Pressure Key Concepts: What are some of the properties of air? What instruments are used to measure air pressure? How does increasing altitude.

1 ATMOSPHERIC PRESSURE & DENSITY. 2 The denser the atmosphere…  the greater its weight, and  the greater its air pressure.

New Area of Focus: Air Pressure, The factor that controls the weather. New Area of Focus: Air Pressure, The factor that controls the weather. Copyright.

Gay-Lussac’s LawGay-Lussac’s Law  Pressure and temperature relationship  Pressure results from molecular collisions  Pressure of gas is DIRECTLY proportional.

Gases and Pressure Section Vocabulary Pressure: the force per unit area on a surface Atmospheric pressure: the force per unit area exerted against.

1. 2 Partial Pressure Pressure of individual gases in a mixture.

Gases HW: read CH 13.

Air Pressure Notes. Properties of Air Oxygen (O 2 ) Nitrogen (N 2 ) CO 2, H 2 O, and others.

Topic: Characteristics of the Atmosphere PSSA: C / S8.D.2.1.

ATMOSPHERIC PRESSURE zl657tCCudw.

1. Pressure is defined as the force per unit area on a surface. 2. The SI Unit for force is the newton (N). A newton is the Force that will increase The.

Elements An element is a pure substance made of only 1 type of atom.

The Air Around You Section 15:1.

WEATHER WEATHER is… DAILY CHANGES OF THE EARTH’S ATMOSPHERIC VARIABLES

AIR PRESSURE What caused this tank car to crush? 1.

Section 1: Characteristics of the Atmosphere

Presentation on Barometers

Air and Air Pressure 6C.

Basic Properties of the Atmosphere

Vanderbilt Student Volunteers for Science

Section 1: Characteristics of the Atmosphere

The Atmosphere.

Weather Vocabulary Set #1.

13.1 What’s in Earth’s atmosphere?

The Atmosphere.

Recognize the connection between the sun’s energy and the wind.

13.1 What’s in Earth’s atmosphere?

Pressure Chapter 11 Section 1.

Gases Chapter 13-1.

For more info refer to p. 411 in Weather and Climate textbook.

Chapter 1.2 Air Pressure pgs 10-14

Partial Pressures.

Presentation transcript:

Weather vs. Climate Weather: The general condition of the atmosphere at a particular time and place. Climate: The general weather conditions over many years.

What is air? Air is a mixture of gaseous elements and compounds Those elements are Nitrogen, Oxygen and Argon Other compounds include Carbon Dioxide (CO 2 and Water H 2 O)

What determines weather? –Lots of things determine why we have weather and where our weather comes from. –One MAJOR factor that contributes to weather everywhere is AIR PRESSURE or ATMOSPHERIC PRESSURE.

ATMOSPHERIC PRESSURE This is defined as the PRESSURE exerted on a surface by the ATMOSPHERE. When measuring pressure, scientists use three different types of units; ATMOSPHERES (atm), millimeters or inches of MERCURY, or MILLIBARS. The instrument that scientists use to measure ATMOSPHERIC (AIR) PRESSURE is called the BAROMETER.

AIR PRESSURE DEMOS In order to do demonstrations about air pressure today, we are going to use a VACUUM. This is NOT the device that your mom uses to clean your room! Instead, the purpose of a vacuum is to __________ air pressure.

PREDICT: What, if any, changes will you see when shaving cream is placed into a vacuum and the air pressure is reduced? When the pressure is restored? OBSERVE: EXPLAIN:

PREDICT: What, if any, changes will you see when shaving cream is placed into a vacuum and the air pressure is reduced? When the air pressure is restored? OBSERVE: EXPLAIN:

PREDICT: What, if any, changes will you see when water is placed into a vacuum and the air pressure is reduced? When the air pressure is restored? OBSERVE: EXPLAIN:

PREDICT: What, if any, changes will you see when a marshmallow is placed into a vacuum and the air pressure is reduced? When the air pressure is restored? OBSERVE: EXPLAIN:

Pull apart the sphere Predict Observe Explain

Trash Bag Predict Observe Explain

Can Crushing Predict Observe Explain

Graduated Cylinder Predict Observe Explain

Air Pressure Demos human vacuum crushing can pull apart the sphere vacuum out the air in the jar. –balloon –marshmallow man –shaving cream –Twinkies –boiling water plane underwater pain in joints life in high elevation

EXIT ASSESSMENT F8GwIhttp:// F8GwI