do now: look at the bottle of clear solution on my desk, what do you think it is? does it have...

Do Now: Look at the bottle of clear solution on my desk, what do you think it is? Does it have ENERGY? Do Now: Focused Free Write Look at the bottle of clear solution on my desk, what do you think it is? Does it have ENERGY?

Do Now: Do Now: Take a lab from the Do Now Desk Get into your groups from last time! Get that data!

Do Now: Copy HW & Lab Pass UP -Pass up Water Shoe box lab Monday: No HW Tuesday: Energy Homework Wednesday: Energy Transfer Practice Question in Packet on Page 7 Thursday: Specific Heat WS Friday: No Homework Extra Help: Thursday Morning

Unit 1: ENERGY 4 Stop Monkey-N-ing around and Go Green already! P.S. Im Mookie the Monkey

What is ENERGY? Energy is the ability to do _______ Work 5

Work occurs when a _____ causes an object to _____ in the same direction as the force. move force 6

FORMS OF ENERGY Both basic states of energy, Kinetic and potential, can exist in many forms!

The total ________ energy of the particles in matter. (molecular motion) Kinetic THERMAL (HEAT) 9

A type of mechanical energy. It is the energy produced when objects ________. Ex: tuning fork, bell vibrate SOUND 10

Energy with which ______ objects perform work. Ex: Wind, flowing water, using a hammer moving MECHANICAL 11

A form of energy produced by the ________ of ________ movement ELECTRICITY electrons 12

Energy STORED in chemical ____ that can be released. Ex: food, fossil fuels, battery acid bonds CHEMICAL 13

Stored energy due to a change in the shape of an object. Ex: _______________ A stretched rubber band STORED MECHANICAL ENERGY: 14

STORED MECHANICAL ENERGY: 15

A form of _______ energy that moves in a ______. Ex: lamp, stars radiant LIGHT wave 16

All forms of energy that come from the ______. SUN SOLAR ENERGY 17

Energy STORED in the ________ (center) of an atom. Ex: nuclear bombs nucleus NUCLEAR 18

Heat energy STORED within the _____. Ex: Volcanic eruptions, geysers Earth GEOTHERMAL (HEAT) 19

All forms of energy can be classified as Kinetic or potential. The two basic states of energy. So, whats the difference? 20

1) Potential energy is stored energy due to and objects _____________ Position POTENTIAL ENERGY 24

2) An object that is lifted from its position on Earth has __________ potential Energy which depends on ______ and mass gravitational POTENTIAL ENERGY height 25

3) Massive objects have _____ potential energy than less massive objects more POTENTIAL ENERGY 26

4) An object at a higher elevation will have _____ potential energy than an object at a lower elevation more POTENTIAL ENERGY 27

Do Now Pass up procedure for your signed test Take out Homework Complete worksheet on Do Now desk

1)Kinetic is energy of ___________ Motion KINETIC ENERGY 29

2) Kinetic depends on the _____ and the _______ of an object. MASS KINETIC ENERGY SPEED 30

3) Faster objects have ____ kinetic energy than slower objects. More KINETIC ENERGY 31

REVIEW QUESTONS: A B C D WHICH SKIIER HAS THE GREATEST KINETIC ENERGY?

WHICH SKIIER HAS THE GREATEST POTENTIAL ENERGY? A B C D

Do you remember the LAW OF CONSERVATION OF MASS AND ENERGY? ENERGY TRANSFORMATIONS 34

Law of Conservation of ENERGY: (same for mass) Mass/ NRG ____________ Mass/ NRG ______________ Mass/ Energy can only __________ Cant be made Cant be destroyed Change form!!!

DURING ENERGY CHANGES, IF ONE BODYIS LOSING ENERGY, THE OTHER IS _______ ENERGY: THE WAVE LOSES ENERGY : THE SAND GAINS ENERGY Gaining

THE WAVE LOSES ENERGY : THE SAND GAINS ENERGY DURING ENERGY CHANGES, IF ONE BODYIS LOSING ENERGY THE OTHER IS GAINING ENERGY:

DURING ENERGY CHANGES THE TOTAL ENERGY REMAINS THE SAME ENERGY ALWAYS FLOWS FROM HIGH TO LOW (source to sink ) DURING ENERGY CHANGES THE TOTAL ENERGY REMAINS THE SAME ENERGY ALWAYS FLOWS FROM HIGH TO LOW (source to sink )

THE ENERGY WILL FLOW FROM: THE ENERGY WILL FLOW FROM: THE FLAME TO THE FINGER THE FLAME TO THE FINGER

ICE ENERGY WILL FLOW FROM THE FINGER TO THE ICE THE FINGER TO THE ICE

THE LIQUID LOSES ENERGY AS THE ICE GAINS ENERGY THE LIQUID LOSES ENERGY AS THE ICE GAINS ENERGY

WHEN WILL THE EXCHANGE OF ENERGY STOP? WHEN WILL THE EXCHANGE OF ENERGY STOP? WHEN EQUILIBRIUM IS REACHED WHEN EQUILIBRIUM IS REACHED THE LIQUID AND THE ICE REACH THE SAME TEMPERATURE THE LIQUID AND THE ICE REACH THE SAME TEMPERATURE

Very often during the energy transformation process, some ____ energy is produced due to friction. This is wasted energy and is lost to the environment. heat UNUSABLE ENERGY: 43

Example: A television changes electrical NRG into light and sound NRG ENERGY TRANSFORMATIONS 44

ENERGY TRANSFORMATIONS 45

Do Now Turn to page 7 in your note packet Take out Energy HW

Methods of NRG transfer 1. __________________: Heated air rises through earths atmosphere. 2. __________________: An ice cube melts when dropped into a glass of warm water. 3. __________________: Light leaves the sun and 8 minutes later strikes earth. 4. __________________: You burn you tongue eating hot pizza. 5. __________________: Hot magma rises inside earths mantle, cool, and sinks. 6. __________________: A microwave oven heats soup. 7. __________________: A fireplace warming a room. Convection Radiation Conduction Convection Radiation Convection

28262423 A 26262423 B 26252422

Methods of Energy Transfer

Energy moves from regions of _________ concentration to ________ concentrations of energy. high low 52

_______ To _______ Source sink

There are 3 methods of Energy Transfer Radiation ConDuction ConVection

Con D uction

Explanation of Transfer D irect contact (touch) Molecule To Molecule

-Conduction is a form of heat transfer by direct _______ of molecules contact 57

-Conduction occurs fastest in _______ solids Best Medium for energy transfer 58

-_______ are the best conductors of he heat energy. metals 59

Examples Touching a hot surface Electricity

Do Now Take a Conduction lab & read:

Con ection

Explanation of Transfer Energy transfer Due to Density differences

-Convection is a form of heat transfer that occurs by up and down motions of a _______ due to differences in ______ fluid density 64

-occurs ONLY in _____ which are liquids and gases! fluids Best Medium for energy transfer 65

Examples Hot air or water rising Volcanoes Lava lamp

convection

Radiatio

Explanation of Transfer Electromagnetic (EM) waves that move Through a vacuum (empty space)

-radiation is the transfer of heat in _____. waves 70

-Electromagnetic radiation travels at the speed of ______. light 71

Best Medium for energy transfer No medium needed

Examples Gamma X-rays UV Visible Infrared Microwave radio

Do Now: Name that type of heat transfer! Conduction! Convection! Radiation! 74

Do Now: Focused Free Write (No HW tonight) What is different about how each of the three popcorns? How were they made? Explain!

Do Now: In which direction does the air move? 28262423 A 26262423 B 26252422

Do Now: In which direction does the energy move? 28262423 A 26262423 B 26252422

Do Now: What will heat up faster 1. Or 2. Or 3. Or

1. HEAT: the energy of moving __________ particles HEAT NOTES 81

2. HOT OBJECTS contain __________ heat than cold ones more HEAT NOTES 82

3. All objects above __________ contain heat Absolute zero HEAT NOTES 83

4. Heat always flows from ______ objects to ______ objects until the objects reach _____ temperature. hotter HEAT NOTES cooler same 84

5. The greater the difference in temperature between the two objects, the _________ heat is transferred. faster HEAT NOTES 85

HOW IS HEAT TRANSFERRED BETWEEN OBJECTS? 86

Heat Transfer at Work

Name that type of heat transfer! Conduction! Convection! Radiation! 88

Do Now Read the article about Latent Heat while I set up the Demo I will collect both labs tomorrow! Tomorrow report to large computer room in the Library

Heat Transfer across the globe http://www.classzone.com/b ooks/earth_science/terc/con tent/visualizations/es1705/e s1705page01.cfm http://www.classzone.com/b ooks/earth_science/terc/con tent/visualizations/es1705/e s1705page01.cfm

Do Now: HW on Desk Take a Lab from Do Now desk Reflect on these two questions: 1) Would it take more energy to raise 5 g of water 5C or 20C? 2) Would it take more energy to raise 5 grams of water 10C or 100 grams of water 10C

Specific Heat Quantity of heat needed to raise One gram of any Substance by 1 degree Celsius

Specific Heat The higher the Specific heat The more energy is needed to raise the temperature

Measuring Specific Heat Energy can be measures in many different ways. Typical units include: ____________________, _________________, & ___________________ Joules Watts calories

The term Joule is named after English Scientist James Prescott Joule who lived from 1818 to 1889. He discovered that Heat is a type of Energy! 1,000 joules =1 kilojoule = 1 Btu

Do Now! Read the did you know and complete practice questions 1-10!

1.What substance has the highest specific heat? Use your Reference Tables Liquid water 4.18 Joules/gramC

2. Why do metals have low specific heats? They are solid

3. Why are pans made of metals with low specific heats ? Because metals are good Conductors And have low specific heats. Therefore they will heat up quickly and cook your food faster.

water 4. Which would Take more energy to raise its Temperature, water Or land?

land 5. Which would Heat up and cool off Faster, land or water?

Water (liquid) = 4.18 Iron (Fe) = 0.45 Copper (Cu) = 0.38 6. Which of these three substances will heat up fastest? Copper because it has the lowest specific heat

Do Now: 1) Describe the energy exchange occurs when liquid water at 0C turns to ice at 0C? a.The water loses energy b.The air around the water loses energy c.The ice gains energy. d.The air and the water both gain energy. 2) As heat energy is added to an open container of boiling water, the temperature of the boiling water will.. a. decrease b. increase c. remain the same

7. Which material would require the greatest amount of heat energy to raise its temperature from 5 0 C to 10 0 C? A. 10 grams of granite B. 10 grams of ice C. 10 grams of lead D. 10 grams of iron

8. Which pan would you use if you wanted to cook your food quickly? copperiron Cp = 0.38 Cp = 0.45

9. Which material would require the greatest amount of heat energy to raise its temperature from 5 0 C to 10 0 C? A. granite B. ice C. lead D. iron

10. Calculate how many joules would be required to raise 3 grams of water from 50 C to 65 C. 3g x15 C x 4.18 J =188.1j gC

Do Now: Copy HW & Green house ditto on desk -Pass up Phase change lab Monday: Study for exam Tuesday: Review book read pages 105 to 109 Answer Questions 11-31 on page 110 Wednesday: Review Book read pages 116 to 118 Questions 39 to 48 on 119 Thursday: Insolation Worksheet Friday: No HW Extra Help: Monday after school

Do Now: Take out review sheet

Do Now: Copy HW & Lab Pass UP -Pass up signed progress report Monday: Specific Heat HW Tuesday: Electromagnetic Spectrum HW Wednesday: Electromagnetic Spectrum WS #1 Thursday: Wave WS & Study Friday: Quiz Today Extra Help: Tuesday Morning

Do Now: Focused Free Write What is different about how each of the three popcorns? How were they made? Explain!

Do Now: - Take a lab from the do now desk -Take out last nights HW -Complete the FOCUSED FREE WRITE on the front page of the lab: Which spoon would heat up faster when placed in a bowl of very hot soup, a wooden spoon or a metal spoon? Explain your answer in terms of specific heat, which spoon has the lower specific heat and why?

Take out your concept map and reading from last nights homework

Find the symbol on the Top right corner of your Lab. Time to get in Lab Groups, Listen for directions.. Heat Transfer through radiation Lab

Directions: -You will work in groups of four to complete this Lab. -If your paper has an A in the top right corner, you and your partner will be monitoring the SAND AND WATER cups. -If your paper has a B in the top right corner, you and your partner will be monitoring the BLACK AND SILVER cans. -Both groups are responsible for both sets of data so it is important to communicate to each other.

In the space provided on your lab, predict what which cup will heat up fastest, the cup of sand or the cup of water? Explain your choice! Make a Prediction

In the space provided on your lab, predict what which cup will heat up fastest, the black cup or the silver cup? Explain your choice! Make a Prediction

-One partner is responsible for turning on the heat lamp -The other partner should take a temperature reading for each cup for time 0 in Degrees Celsius Prepare to Begin

Quick! Record Time 0 for your set up -Trade data -Answer this question: Two Minute Timer 1.Examine the lamp, what type of electromagnetic energy is the lamp producing?

Quick! Record Time 2 for your set up -Trade data -Answer this question: Two Minute Timer 2. Define the word: specific heat

Quick! Record Time 4 for your set up -Trade data -Answer this question: Two Minute Timer 3. What is the method of energy transfer responsible for the heat transfer between the lamp and the cans?

Quick! Record Time 6 for your set up -Trade data -Answer this question: Two Minute Timer 4. Look at the data for sand and water which cup is heating up faster?

Quick! Record Time 8 for your set up -Trade data -Answer this question: Two Minute Timer 5. Note which can is getting hotter faster, the black can or the silver can. Explain the data in your own words.

Without disturbing the positions of the cans, TURN OFF THE LAMP and MOVE IT AWAY FROM THE CANS/CUPS Half Way Done!!!

Quick! Record Time 10 for your set up -Trade data -Answer this question: Two Minute Timer 6. Note which cup is hotter: The sand or the water. Based on this compare the density of the air over the sand to the density of the air over the water.

Quick! Record Time 12 for your set up -Trade data -Answer this question: Two Minute Timer 7. Explain why the black can appears black based on last nights reading.

Quick! Record Time 14 for your set up -Trade data -Answer this question: Two Minute Timer 8. Look at the data for sand and water which cup is cooling down up faster?

Quick! Record Time 16 for your set up -Trade data -Answer this question: Two Minute Timer 9. Relate this experiment to real life. What type of surface on earth could be represented the silver can? The black can?

Quick! Record Time 18 for your set up -Trade data -Answer this question: Two Minute Timer 10. Compare your answers to questions 6 and 8, complete this sentence: Good Absorbers are also good _______________

Quick! Record Time 20 for your set up -Trade data -Answer this question: Two Minute Timer 11. Texture also plays a key role in the absorption of heat energy. Compare a rough surface and a smooth surface, which one will absorb more energy and why?

Quick! Record Time 22 for your set up -Trade data -Answer this question: Two Minute Timer 12. By 3:00 P.M. on a summer day would the air be cooler over ocean or land?

Graph your data before you answer the questions!!!!

Conclusion: Write a short paragraph summarizing your understanding of the interaction between radiation and earths different surfaces. Use at least five of vocabulary words of these vocabulary words: Electromagnetic spectrum, visible light, prism, ozone, absorption, reflection, temperature, specific heat, reradiation, and infrared radiation.

Do Now: HW on Desk -Pass up procedure for 3D topo lab - Reflect on these two questions: 1) Would it take more energy to raise 5 g of water 5C or 20C? 2) Would it take more energy to raise 5 grams of water 10C or 100 grams of water 10C

Do Now: Calculate the amount of energy in joules required to raise the temperature of 5 grams of granite from 82 C degrees to 100 C

PHASES OF Matter: PHASES OF Matter:

Matter is anything made of atoms and molecules.

B) LIQUID A) SOLID C) GAS

Motion How is it Does it have Volume? (Kinetic bonded? A definite energy)shape? Little K.E. Molecules vibrate Strong yes More K.E. Molecules move freely Not bonded rigidly no yes Most K.E. Molecules move fast Not bonded no Gas Liquid Solid

What are the changes of phase called? solid liquid gas FREEZING MELTING VAPORIZATION CONDENSATION

2. ENERGY IS RELEASED (lost) DURING: SOLID LIQUID GASLIQUID FREEZING CONDENSATION from higher K.E. to lower K.E.

3. ENERGY IS ABSORBED (gained) DURING: SOLID LIQUID GASLIQUID MELTING VAPORIZATION from lower K.ETo higher K.E.

Do Now -Take out lab, pass up procedure

Latent heat Energy stored during a phase change is called __________________ No change in temperature 149

TAKE OUT YOUR EARTH SCIENCE REFERENCE TABLES 150

Properties of Water (Earth Science Reference Tables : front page)

temp 0 C 100 Heating Curve of Water HEAT ENERGY ADDED 0 MELT FREEZE VAPORIZATION CONDENSATION STEAM WATER ICE (Joules)

Do Now: -Take out sheet from do now desk and complete, this replaces yesterdays there was a typo -Take out Homework

Problem 1 : Does temperature change during a phase change? ___________ Explain: NO!!!! The energy gained by boiling water or melting ice is stored as latent heat. Likewise this latent heat is released to the environment during condensation and freezing. This absorbed or released heat is used to change the phase not the temperature.

Problem 2: How many Joules of heat energy must be added to 20 grams of ice at 0oC to melt it completely to liquid water at 0oC? Show All work.: P= LH x Mass P= 334J/g x 20g P= 6680 J

3. The most energy is released during which phase change 4: The most energy is absorbed during which phase change: 5. Which phase has the most K.E.? GAS (STEAM) condensation Vaporization

Problem 6: How many joules of heat (Q) energy must be added to 35 grams of liquid water to change the temperature from 10 o C to 100 o C water vapor? Is this a phase change problem or specific heat? Q= C x Mass x T Q= 4.18J/gC x 35g x 90C Q= 13167 J Specific Heat (C)

Problem 7 : How many joules of heat energy must be added to 35 grams to change liquid water at 100 o C to water vapor at 100 o C? Is this a phase change problem or specific heat? P= LH x Mass P= 2260 J/g x 35g P= 79100 J Phase Change (LH)

Problem 8: How many Joules of heat energy must be added to 35 grams of water vapor to change its temperature from 100 o C to 145 o C? Show all work. Is this a phase change problem or specific heat? Specific Heat (C) Q= C x Mass x T Q= 2.00 J/gC x 35g x 45C Q= 3150 J

Problem 9: How many Joules of heat energy must be added to 35 grams of ice to change the temperature from 10 o C to 145 o C water vapor? How many steps are in this problem? Show All work.

SEE EARTH SCIENCE REFERENCE TABLE: MELTING / FREEZING + 334 J/gram Energy is absorbed Energy is released 0 0 C - 334 J/gram

100 0 C +2260 J/g Energy is absorbed Energy is released VAPORIZATION/ CONDENSATION -2260 J/g

-Quiz is still Friday will cover everything up to the greenhouse effect. More details tomorrow. -No lunch club today, sorry! -Single period exam on Tuesday on Entire Energy Packet

Do Now Test is moved to Tuesday Do Now Worksheet on Desk Extra-help on Monday after school Pass-up Procedure for phase change lab Take out Mookie the Monkey Note-packet

The Earth is always trying to achieve Equilibrium Energy is constantly being re-distributed flowing from source to sink

The Earth Receives Energy from two sources:

Radioactive Energy CORE

All matter radiates some _____________ _____________ Electromagnetic Energy

The sun emits energy in _____ wavelengths of the electromagnetic spectrum. Read about the Electromagnetic Spectrum. ALL

ELECTROMAGNETIC SPECTRUM: REFERENCE TABLE PAGE 14 Increasingwavelength Violet Blue Green Yellow Orange Red visible 10 -10 10 -8 10 -6 10 -4 10 -2 10 0 10 2 10 4 gammaX ray Ultra violet Infrared Microwaves Radio waves Decreasingwavelength

Increasingwavelength Violet Blue Green Yellow Orange Red visible 10 -10 10 -8 10 -6 10 -4 10 -2 10 0 10 2 10 4 gammaX ray Ultra violet Infrared Microwaves Radio waves Decreasingwavelength Each type of energy differs in its __________ wavelength

Read about Waves! A wavelength is the distance between two crests of the wave.

Frequency is defined as a number of cycles per unit time.

1. Explain the diagram above in no more than 3 sentences: ________________________________ __________________________________________________________________________ __________________________________________________________________________ 2. Which types of electromagnetic energy have the greatest and least amount of energy? (Highest temperatures vs. lowest temperatures) ____________________________________________________________________________________________ ______________________________________________________________________ 3. How are the different types of electromagnetic energy distinguished from one another? ____________________________________________________________________________________________ ______________________________________________________________________ 4. What types of electromagnetic energy are between Microwaves and X-Rays? ____________________________________________________________________________________________ ______________________________________________________________________ 5. Explain how Gamma Rays and X-Rays are different and similar? ____________________________________________________________________________________________ ______________________________________________________________________ 6. Why do you think you wear a lead shield when you have an X-Ray? ____________________________________________________________________________________________ ______________________________________________________________________ 7. Based on the electromagnetic spectrum why do you think UV rays are dangerous to human health? ____________________________________________________________________________________________ ______________________________________________________________________

The Sun gives off light and heat in the form of _________________ and __________________ electromagnetic energy. VISIBLE UV

However, the short wavelengths (dangerous UV radiation) are mostly absorbed by the ozone so they dont reach earths surface OZONE GAMMA

The Ozone layer is found in the _________________ layer of the atmosphere. stratosphere

Increasingwavelength Violet Blue Green Yellow Orange Red visible 10 -10 10 -8 10 -6 10 -4 10 -2 10 0 10 2 10 4 gammaX ray Ultra violet Infrared Microwaves Radio waves Decreasingwavelength

SHORT WAVE LENGTHS ARE MOSTLY ABSORBED by THE OZONE IN THE STRATOSPHERE gamma, x-rays, OZONE UV

This energy is absorbed by Earths surface, which in turn reradiates the energy in the form of heat called ________________ radiation infrared

OZONE VISIBLE LIGHT : PASSES THROUGH THE ATMOSPHERE WITH THE GREATEST INTENSITY VISIBLE LIGHT : PASSES THROUGH THE ATMOSPHERE WITH THE GREATEST INTENSITY

Heat energy that Earth re-radiates Sun emits all wavelengths Infrared:

Increasingwavelength Violet Blue Green Yellow Orange Red visible 10 -10 10 -8 10 -6 10 -4 10 -2 10 0 10 2 10 4 gammaX ray Ultra violet Infrared Microwaves Radio waves Decreasingwavelength

How does too Much contribute to Global warming? CO 2 H 2 0 VAPOR METHANE GAS INFRARED CO 2 CO 2 absorbs infrared

Do Now: Take a sheet from the do now desk. -This is the answer key to the review packet handed out the first day of energy -Focused Free Write: Is temperature a measure of heat energy?

Interactions between Electromagnetic Energy & The Environment:

1. 2. 3. 4. 5. ABSORBTION REFLECTION SCATTERING REFRACTION TRANSMISSION REFLECTION SCATTERING REFRACTION TRANSMISSION - UV ABSORBED by OZONE IN STRATOSPHERE INFRARED ABSORBED BY - BY CLOUDS, ICE, SNOW & WATER - BY CLOUDS, ICE, SNOW & WATER - BY AEROSOLS, WATER DROPLETS, ICE CRYSTALS, AIR POLLUTANTS, DUST, POLLEN WATER DROPLETS, ICE CRYSTALS, AIR POLLUTANTS, DUST, POLLEN LIGHT IS BENT AS IT MOVES THROUGH VARIED DENSITIES LIGHT IS BENT AS IT MOVES THROUGH VARIED DENSITIES WHEN ENERGY PASSES THROUGH A MEDIUM WHEN ENERGY PASSES THROUGH A MEDIUM CO 2 & H 2 O vapor methane, nitrous oxide

1. ABSORPTION 2. REFLECTION 3.SCATTERING 4. REFRACTION 5. TRANSMISSION Do Now: Turn to page 15 in your note packet, start filling in the blanks

Less than ______ of the incoming solar radiation is received by the Earths surface half

Do Now Ditto On Do Now Desk Sit Quietly in your Assigned seats Take out HW Worksheet Smile its Friday!

Surface properties of the Earth and Absorption of Energy:

Color: Texture: Reflection vs. Absorption & Radiation Rough surface absorbs smooth surface reflects Light (white) reflects dark (black) absorbs

Absorption Good absorbers are also good re-radiators. What type of surface is the best absorber? What type of surface is the best reflector of radiation? Dark Rough Light Shiny Flat Snow and Ice reflect insolation and remain cold. Pavement warms before grassy lawns.

ELECTROMAGNETIC SPECTRUM: LAB Increasingwavelength Violet Blue Green Yellow Orange Red visible 10 -10 10 -8 10 -6 10 -4 10 -2 10 0 10 2 10 4 gammaX ray Ultra violet Infrared Microwaves Radio waves Decreasingwavelength

Spectroscope Lab

Do Now on Desk Aim: Greenhouse Effect Phase change lab due tomorrow Review Packet due tomorrow Energy Exam next Tuesday Extra Help Today After School

Greenhouse Effect Short wavelength visible light enters the greenhouse, is absorbed, then re-radiated as longer wavelength infrared (heat). The glass traps the infrared.

What is Global Warming? An ___________ in the Earths Average surface air temperature increase

THE GREENHOUSE EFFECT 204

THE GREENHOUSE EFFECT Energy absorbed HEAT IS TRAPPED BY THE GLASS OF THE GREENHOUSE Incoming is Short wave Ex: Visible light outgoing is Longer wave Infrared 205

Short wave radiation like ___________ passes through the glass of a greenhouse and is _______________ by the objects inside the greenhouse. Visible light absorbed 206

These objects __________________ the energy as ____________________, which get reflected back into the greenhouse and warms the air. infrared Long Wave Radiation reradiate 207

In Earths atmosphere, there are many gases that act like the glass of a greenhouse and ________ long-wave radiation, keeping it in the Earths Atmosphere. These are known as trap 208

Greenhouse Gases! 209

Greenhouse Effect CO 2 and H 2 O absorb infrared that is re-radiated from the surface of the Earth. Therefore, holding that heat in the atmosphere and raising the global temperature.

What are the Greenhouse gases? CO 2 H 2 0 VAPOR METHANE GAS INFRARED Ozone CFCs

Without some greenhouse gases, the Earth would be too _____________ for us to survive. But an overload of greenhouse gases creates a problem as well! cold

How does too Much contribute to Global warming? CO 2 H 2 0 VAPOR METHANE GAS INFRARED CO 2 CO 2 absorbs infrared

Greenhouse Effect What human activities contribute to CO 2 production and an increase in the greenhouse effect? Burning of fossil fuels Global deforestation

If present trends continue possible effects may include Rising sea levels due to melting polar ice caps; Increasing frequency and severity of storms and hurricanes; More frequent heat waves and droughts; and Relocation of major crop growing areas.

A B c Which of the following best represents the type of energy received by the Earth and the re-emitted by the Earth?

A B A)INSOLATION C) VISIBLE LIGHT B) ULTRAVIOLET WHICH TYPE OF ENERGY IS REPRESENTED BY THE RADIATION AT B? D) INFRARED ENERGY

An energy resource that is __________________ __________________ ___. Being used faster than Earth Produces it What is a NON-RENEWABLE RESOURCE? 220

Examples: __________________ Fossil Fuels, minerals What is a NON-RENEWABLE RESOURCE? 221

To make our non- renewable resources last longer we can __________________ __________________ _________. Reduce Reuse Recycle What is a NON-RENEWABLE RESOURCE? 222

An energy resource that is __________________ __________________ ___. Earth supplies faster than we use it unlimited What is a RENEWABLE RESOURCE? 223

Examples: __________________ _____________ Solar, wind, biomass (trees etc..) What is a RENEWABLE RESOURCE? 224

A renewable resource produces less _________ (substance that can harm living things and/or the environment pollution What is a RENEWABLE RESOURCE? 225

Look at the pie graph!!! Only 7% of our energy consumption is from renewable resources!!! Try to make little changes in your life to reduce your dependence on Non- Renewable Resources! What do you plan to do?

do now: look at the bottle of clear solution on my desk, what do you think it is? does it have...

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