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How do you feel in the sunlight? Warm!
Why? The Sun gives off: Light Heat
This heat and light is called … Solar Radiation: heat and light from the Sun
Solar Radiation is reflected and absorbed
Reflection: heat and light bounce off a surface
Absorption: heat and light are taken in by a surface
Solar radiation warms the Earth
Earths atmosphere protects us from most solar radiation
There is no atmosphere in space, so it can get very hot or very cold
Astronauts need extra protection in space from the extreme temperatures
Why else do astronauts need extra protection? No air No pressure space debris
What do Astronauts wear for protection in space?
The Experiment: why are space suits white? You will get two envelopes One light envelope One dark envelope
Place a thermometer inside each envelope
Place the envelopes in the light, record the temperatures, and predict how they will change
Graph your results! 100 ° F 90 ° F 80 ° F 70 ° F 60° F 0 mins 5 mins 10 mins 15 mins 20 mins
Write a Hypothesis: Which color do you think will get warmer and why?
Which envelope was warmer? The dark envelope! Why?
Dark colors absorb light: take heat in get hotter faster
Thats why black asphalt is so hot in the summer
Which envelope stayed cooler? The light envelope! Why?
Light colors reflect light: Heat bounces off Stay cooler
This is why astronauts wear light colored space suits!
Did You Know? Space suits also have built-in air conditioning to help keep astronauts cool!
Question of the Day… Does the absorption of sunlight lower or increase Earth’s temperature? 2. How does solar energy reach Earth? 3. Why.
How is Earth’s Surface heated?. Modeling the Absorption of Light… Hypothesize: Which color will be the hottest? 1. Place an aluminum pan under a light.
On a hot sunny day, did you ever see cars, buildings, or other objects appear to shimmer or waver on the other side of a street or parking lot? What causes.
Solar Energy & Weather 6.4.7: Explain how solar energy affects Earth’s atmosphere and surface (land and water).
Ch. 19: Reflection, Absorption, and Refraction of Light
Do Now: In you notes, describe what happens to an object as heat (energy) is added to it. What changes take place, what happens to the molecules? With.
Solar Energy Solar energy is the source of most of Earth’s heat on land, in the oceans and in the atmosphere. When solar energy interacts with air, soil.
Do DIFFERENT COLORS ABSORB HEAT BETTER?
3.3 Radiation Can heat be transferred from the Sun to us through conduction and convection? What is radiation? No! Conduction and convection cannot transfer.
Chapter 2 Weather Factors Section 2 Heat Transfer.
MATTER Read each slide. Look closely at each picture. Answer each question.
Dark coloured absorb more of the sun's rays and produce more heat than light-coloured things. The dark clothing keep us warmer in the winter time. It holds.
Radiation Infra-red radiation transfers heat between all objects. Infra-red radiation is an electromagnetic wave and can travel through a vacuum. Heat.
Sun Controls Earth’s Climate System Earth has a global climate system that includes air, land, liquid water, ice, and living things.climate system The.
TIC TAC LESSON Heat and Light
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Energy Transfer Unit 3, Lesson 2, pg. 114 LEQ: How does Energy move through Earth’s system? S8.C.2.1.2: Explain how energy is transferred from one place.
Energy & Environment. Concentrating the sun rays Converting the light energy into heat energy Trapping heat Using certain materials for their beneficial.
INSOLATION Incoming Solar Radiation Portion of sun’s output of electromagnetic radiation that is received by earth.
Heat Transfer Chapter 2, Section 2 p How Heat is Transferred Heat: the energy transferred from a hotter object to a cooler one.
Thermal radiation Any object that is hot gives off light known as Thermal Radiation. The hotter an object is, the more light it emits. As the temperature.
Chapter 17: The Atmosphere
16-1 Energy in Earth’s Atmosphere. (pages 542–545) 1
Conduction Convection Radiation. AIMS To understand the process of conduction To understand the process of convection To understand the process of radiation.
Let’s try again! Cold air Humid air Rainy day “Nice”weather (not necessarily warm!) Snowstorm July afternoon North Pole Equator High Low High Low.
KRJ Planning and Research-- We plan learning environments as comfortable, resource-efficient knowledge incubators. Control over… Air temperature Radiant.
ENERGY. Conservation of Energy: The total amount of energy in a system remains constant ("is conserved"), although energy within the system can be changed.
Card Answers #2 3/1/10. What does rotate mean and what does it have to do with the earth? Rotate means to stay in one place and spin around. vearth3.mpg.
Thermal Energy Question Review Heat Transfers. Thermal Energy Review If you walk barefoot on hot asphalt, energy is transferred by which process? A. convection.
Chapter 2 Heating Earth’s Surface and Atmosphere The Atmosphere 10e Lutgens & Tarbuck Power Point by Michael C. LoPresto.
Day Topic: Finish Convection, Begin Radiation
Energy Transfer In the atmosphere.
1 Year 10 Science Heat and energy. 2 Evaporation and radiation.
Heating of the Earth. Temperature Layers of the Atmosphere.
Scattering and Absorption
Factors That Affect Climate (page 5). Deep Space is very cold o C Earth is much warmer than that! So where does the heat come from? The Sun!
How Switched On Are You? HEAT Radiation Reflection Absorption
NC Essential Standard: Compare the composition, properties, and structure of Earth’s atmosphere to include: mixtures of gases and differences in temperatures.
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Unit 3 Lesson 2 Energy Transfer Copyright © Houghton Mifflin Harcourt Publishing Company.
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Solar Energy & the Atmosphere
CHAPTER 19 HEAT TRANSFER IN THE ATMOSPHERE. WHAT IS THE ATMOSPHERE? Earth’s atmosphere is heated by the transfer of energy from the sun. Some heat comes.
Seasons Why we have them And some local effects. The Earth tilts The Earth travels around the sun in an ellipse –The tilt of the North of the Earth is.
Do Now: Based on the notes from last week, what is the difference between temperature and heat?
Thermal Energy Chapter 14. Key Ideas What does temperature have to do with energy? What makes things feel hot or cold? What affects the rate that.
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