1. An atom has: electrons, protons and ___. Sol Oxygen is in the Earths atmosphere, the human body, ___ and ___. Sol The Thermosphere includes the ___ and __ layers. Sol Draw the symbol for a stationary front. 5. Ozone is good __ ___, but bad ____. * The student will investigate and understand basic sources of energy, their origins, transformations, and uses. Key concepts include a) potential and kinetic energy; b) the role of the sun in the formation of most energy sources on Earth; c) nonrenewable energy sources; d) renewable energy sources; and e) energy transformations. * will always be available. They are replaced within 100 years. * Solar power is a renewable source and will always be available for as long as the sun shines. * Water or Hydropower * Wind Renewable Resources Examples Sun Chips are an example of an everyday product that is being produced by solar power. Their plant in California has began using solar power instead of fossil fuel to make their product. The sun helps create 145,000 bags of chips every day. Solar energy comes to Earth from the sun in two forms heat and light. Solar radiation can be used directly to make electricity in a solar cell, or it can be changed into steam for making electricity, heating homes, or heating water. Solar power is created by concentrating the sun lights energy with huge mirrors. Solar cells transform the energy of sunlight to electricity. Solar power stations use hundreds of large panels, packed with solar cells. Wind, like the sun, is a source of energy that has been used by mankind throughout history. Wind is still used to turn blades on windmills, and the resulting movement can be used to pump water or produce electricity. 1.SUN 2.WIND Moving water, such as water flowing in a stream or river or falling over a waterfall or dam can be used to generate electricity, called hydro power. The water turns wheels that run turbines that, in turn, run generators that make electricity. Water in motion because of the ebb and flow of the ocean tides Can also run turbines that generate electricity. is an example of solar energy being transformed into potential chemical energy. Unlike fossil fuels, however, it is a renewable resource, as more trees can always be grown to make more wood. When wood is burned, it gives off heat, which can be used for various purposes. 1.Water motionhydro 2.Water motiontidal 3.Wood Earths heat. - is the natural heat of the Earth, originating in the interior of the Earth and flowing outward to the surface. This heat can be used in its unchanged form to heat homes, among other things, or it can be harnessed in the form of steam to turn turbines and generate electricity. Geothermal energy 1. What is the maximum length of time it can take a resource to replenish and be called renewable? 2. How did Sun Chips get their name? 3. What two forms can solar energy be in? 4. What are the two types of water power? 5. Where does geothermal heat come from? * either can not be replaced or take more than 100 years to replace. * There is a limited supply * Most are Fossil Fuels- replaced over millions of years * are the remains of plants and animals * Is used most for making energy Nonrenewable resources Examples: like petroleum (oil), natural gas, and coal, are the results of solar energy being transformed in the distant past into potential chemical energy. These fuels are found under the ground or ocean, and it is usually necessary to drill deeply into the Earth to extract them. These fuels are used to make heat and/or electricity, as well as other products like gasoline. Fossil fuels Nuclear energy is made in power plants by splitting the nuclei of heavy atoms such as uranium. This splitting of nuclei, by products ATOMIC FUEL or nuclear fission, releases a very large amount of heat energy. This heat can be used to boil water and make steam, which then turns turbines to make electricity. It is considered nonrenewable due to it needing to be mined from the earth and it is dangerous Write the question and then answer it. a. What is the Earths energy source? b. How is the suns energy converted into the chemical energy of food? c. Why is energy necessary? d. What would life be like without energy? * Put a pencil at the side of your table and push it off the edge to demonstrate kinetic energy while falling. Then, have them pick up the pencil and put it back on the desk. Tell them that they used their own energy to lift and move the pencil back to the desk. Moving it anywhere higher than the floor adds potential energy to it. The higher it is, the farther it could fall, and so the higher the pencil is raised, the more potential energy it has. Record all the ways you interact with energy in your lives over a 24-hour period. Whenever possible, you should identify the form of energy (e.g., electricity) and its source (e.g., coal- fired power plant, nuclear power plant). * Discuss our Dependence on Energy, particularly electricity. Ask, a. What happens when we temporarily lose power for a period of time? b. What would we do if we ran out of power? c. How would this affect our lives? * Create 6 multiple choice questions using your notes from Monday and Wednesday! Underline the correct answer. * In yesterdays lab: * 1. Pulling the rubber band back increased what type of energy? * 2. how far the cup moved each time was an example of what type of energy? * 3. Name 3 constants from the lab. * 4. What was the independent variable? * 5. What was the dependent variable? * 6. What is another term/word for average? * Is due to a specific arrangement of chemicals * Ex: If you strike the wood end of a match, nothing happens. If you strike the tip with the chemicals, the match will light. Hand warmers Glow sticks Injury packs Batteries Food * Energy of an object that is moving * Ex: Gears Windmills Riding a bike Juggling Turbines * Energy of moving electrons * Ex: Curling iron Toaster DVD player Refrigerator 1.Chemical Energy 1.Mechanical energy 1.Electrical energy Movement of molecules to create heat * 3 Ways to move heat energy around Transfer of energy through direct contact * Ex: Burning your hand on the hot stove Pancake on the griddle Burning your feet on the pavement on a hot summer day Movement that transfers heat in a liquid or gas in a circular motion/ current * Ex: Heating your house Cooking soup Lava lamp Transfer of energy by light (sun or fire) * Ex: Sunbathing Heat from a bonfire Tanning booth 1.Thermal / Heat energy 2.Conduction 3.Convection 4.Radiation MechanicalElectricalChemicalRadiantThermal Motor generator battery Battery charger Photosynthesis chemiluminescence Solar heater engines friction Electric heater And fire * Complete and turn in: * Worksheets on * Types of heat and energy transformations 1. Energy that can be replenished over a short time is considered __. 2. What are 3 fossil fuels? 3. An elastic rubber band that is not moving has what kind of energy? 4. A battery is what type of energy source? (mechanical, nuclear, chemical) 5. The measurements of plants is the (data, theory, inference). 1. Quiz 2. Pendulum lab Experiment * Do experiment today and finish the write up tomorrow *physical-science/energy/energy- transformations/physical-science/energy/energy- transformations/ *uk/interactives/science/energy/electricity/uk/interactives/science/energy/electricity/ * https://www.youtube.com/watch?v=20Vb6hlLQ Sg https://www.youtube.com/watch?v=20Vb6hlLQ Sg 1. If fossil fuels are used more rapidly than they are replaced what will happen? 2. Visible light is an example of what type of energy? 3. Power plant pollution has what kind of impact on the environment? 4. If you hunt deer faster than they can breed, what will happen to the deer population? 5. Kinetic energy is___. * https://www.youtube.com/watch?v=GI7Ahajfh WE https://www.youtube.com/watch?v=GI7Ahajfh WE * Natural gas plant https://www.youtube.com/watch?v=Em1crnEt 45Q https://www.youtube.com/watch?v=Em1crnEt 45Q * The combined power plant (renewable Sources)https://www.youtube.com/watch?v=a NZgjEDPe24https://www.youtube.com/watch?v=a NZgjEDPe24 * Solar https://www.youtube.com/watch?v=NDZzAIcC QLQ https://www.youtube.com/watch?v=NDZzAIcC QLQ * Hydro https://www.youtube.com/watch?v=tpigNNTQi x8 https://www.youtube.com/watch?v=tpigNNTQi x8 * Biomass * https://www.youtube.com/watch?v=- ck3FYVNl6s https://www.youtube.com/watch?v=- ck3FYVNl6s * While energy is not created or destroyed, what it is, is a product that can be wasted or we can run out of it. * Ex. Burning wood to heat a home when it is empty, will mean there is no wood left when you get home. It was wasted. * Stores and transports energy, but is NOT an energy source 1.The Law of Conservation of Energy 2.Hydrogen * The SunHelps form MOST of the energy on Earth. * Sun rays for heat * Sun rays for Solar power plants * Sun rays aid photosynthesis in plants * Animals and or humans eat the plants * Other animals or Humans eat the animals that ate the plants * Helps decompose biomass (dead creatures & plants) which becomes fossil fuels 1. In a coal powered power plant, what is the purpose of the steam? 2. What is the law of the conservation of energy? 3. If hydrogen is not a power source what can it do? 4. What supplies most of the Earths energy? 5. Anything that takes up space and has mass is __. * To find out what happens when there is not enough power or energy for a state to function. * Question: Write on your paper and read to find the answer * Is there a single factor or are there multiple factors that impacted the situation in California? * Today we will look at California and its energy problems. We will analyze and assess the factors that impacted the situation. We will also try to construct understanding as to what needs to be determined before we make decisions regarding energy use and legislation. *energy-crisis-calif minenergy-crisis-calif 1. What are the major factors that caused the crisis? 2. What are the social impacts of these decisions? 3. What are the possible economic impacts? 4. How does politics impact this situation? 5. What were the decisions made that helped create this situation? 6. What steps can CA take to remedy this crisis? 7. Do you know of any energy-efficient technologies that can be used to conserve electricity? * Read pages Have your answers from before now been changed? Which ones? 2. Were there different perspectives presented in these articles? 3. What were the perspectives? 4. Is energy production a single-issue problem or a multi-issue problem? What led to that conclusion? 1. What led to the crisis? 2. What decisions led to the crisis and who made them? 3. What was the impact of those decisions? 4. What decisions need to be made to alleviate the crisis? 5. What might happen as a result of those decisions? Describe a possible scenario. *ving-energy-in-a-hurry/ving-energy-in-a-hurry/ * Unlike California, Alaskas power shortage was not due to law makers. In 2008 snow stopped their power supply. * How did they cope with high prices and limited usage? * You are on a committee that will evaluate the potential of deregulating the communitys energy system. Your job is to make recommendations based on what you have learned today. * About page of reasons to back up your decisions! 8. List 3 RENEWABLE energy resources 9. Pollution has a (negative or positive) impact on the environment? 10. What is the Law of Conservation of Energy? 11. If a Conservationists viewpoint is that our resources should be carefully used, a Developmental viewpoint would ___________ the Earths resources if they benefit you. 12. An oil spill near a drilling site is a (cost or benefit) to drilling for oil. ________________ 13. While harvesting maple syrup or pecans from trees does not harm them, will creating new paper by cutting down trees? 14. If you hunt deer faster than they can breed, what will happen to the population? 1. Would animals be renewable or nonrenewable resources? 2. Why is Biomass harmful to the environment if it is a renewable resource? 3. Which is bad for the environment a cost or a benefit? 4. Reducing energy use is also called __. 5. What is an example of Electromagnetic energy? 15. Kinetic energy is 16. Potential energy is 17. The exhaust fumes from burning gas and oil in vehicles creates_____________. 18. How do Nuclear power plants change water into steam? What is the heat source? 19. A ball at the top of a hill has (kinetic or potential) energy. Review Section 20. (6.1) Two Scientists are experimenting with direct and indirect light. The scientists shine a flashlight at different angles into a mirror. If the scientist conducts a controlled experiment, the mirror would be called (6.1) How do you tell qualitative and quantitative data apart? 22. (6.1) The standards to which the results of an experiment can be compared is called the 23. (6.6.d) What types of pollution are NOT naturally occurring? 24. (6.6.e) Energy from the sun absorbed by the Earth is transformed into heat. This heat is trapped in the atmosphere by carbon dioxide and methane gas. These gasses are also called 25. (6.4) Anything that has mass and takes up space is 26. (6.4) What type of matter consists of two or more substances that are NOT chemically combined? 27. (6.4) Substances that CANNOT be broken down chemically into other substances are 28. (6.4) One example of a chemical change is 29. (6.4) What makes the atoms of one element different from the other atoms of another element?