Energy and Change CHAPTER the BIG idea CHAPTER OUTLINE Waves and heat flow transfer energy. Change occurs as energy is transferred. 1.1 Radiation transfers energy. 1.2 Heat energy flows from warmer to cooler areas. 1.3 NEW CHAPTER CHAPTER RESOURCES

VOCABULARY KEY CONCEPT CHAPTER HOME Change occurs as energy is transferred. 1.1 SECTION OUTLINE SECTION OUTLINE CHAPTER RESOURCES CHAPTER RESOURCES CALIFORNIA Content Standards 6.3.a Students know energy can be carried from one place to another by heat flow or by waves, including water, light and sound waves, or by moving objects. 6.3.b Students know that when fuel is consumed, most of the energy released becomes heat energy. energy heat energy temperature heat flow conservation of energy work

VOCABULARY KEY CONCEPT CHAPTER HOME Change occurs as energy is transferred. 1.1 SECTION OUTLINE SECTION OUTLINE CHAPTER RESOURCES CHAPTER RESOURCES Energy is the ability to cause a change. Different forms of energy produce changes in different ways. All living things require energy. Work transfers energy. energy heat energy temperature heat flow conservation of energy work SIMULATION Explore work by lifting virtual weights.

VOCABULARY KEY CONCEPT CHAPTER HOME Change occurs as energy is transferred. 1.1 SECTION OUTLINE SECTION OUTLINE CHAPTER RESOURCES CHAPTER RESOURCES Energy from sunlight is transferred to plants and then to animals. Electromagnetic energy from the Sun is absorbed by the grass, which changes it into chemical energy. As the cow eats the grass, it gains chemical energy stored in the grass. The cow can use some of this energy to produce milk. The person gains chemical energy by eating foods such as yogurt, which is made from milk. energy heat energy temperature heat flow conservation of energy work

VOCABULARY KEY CONCEPT CHAPTER HOME The ability to do work or to cause a change. For example, the energy of a moving bowling ball knocks over pins; energy from food allows animals to move and to grow; and energy from the Sun heats Earth’s surface and atmosphere, which causes air to move. energy 1.1 KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY Change occurs as energy transferred. CHAPTER RESOURCES CHAPTER RESOURCES energy heat energy temperature heat flow conservation of energy work

VOCABULARY KEY CONCEPT CHAPTER HOME The total energy of the motion of particles in an object; also called thermal energy. heat energy 1.1 KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY Change occurs as energy transferred. CHAPTER RESOURCES CHAPTER RESOURCES energy heat energy temperature heat flow conservation of energy work

VOCABULARY KEY CONCEPT CHAPTER HOME A measure of the average amount of the energy of motion of the particles in an object. temperature 1.1 KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY Change occurs as energy transferred. CHAPTER RESOURCES CHAPTER RESOURCES energy heat energy temperature heat flow conservation of energy work

VOCABULARY KEY CONCEPT CHAPTER HOME The movement of heat energy. heat flow 1.1 KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY Change occurs as energy transferred. CHAPTER RESOURCES CHAPTER RESOURCES energy heat energy temperature heat flow conservation of energy work

VOCABULARY KEY CONCEPT CHAPTER HOME A law stating that no matter how energy is transferred or transformed, it continues to exist in one form or another. conservation of energy 1.1 KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY Change occurs as energy transferred. CHAPTER RESOURCES CHAPTER RESOURCES energy heat energy temperature heat flow conservation of energy work

VOCABULARY KEY CONCEPT CHAPTER HOME The use of force to move an object over a distance. work 1.1 KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY Change occurs as energy transferred. CHAPTER RESOURCES CHAPTER RESOURCES energy heat energy temperature heat flow conservation of energy work

VOCABULARY KEY CONCEPT CHAPTER HOME Radiation transfers energy. radiation 1.2 SECTION OUTLINE SECTION OUTLINE wave wavelength electromagnetic spectrum CHAPTER RESOURCES CHAPTER RESOURCES CALIFORNIA Content Standards CALIFORNIA Content Standards 6.3.a Students know energy can be carried from one place to another by heat flow or by waves, including water, light and sound waves, or by moving objects. 6.3.d Students know heat energy is also transferred between objects by radiation (radiation can travel through space). 6.4.b Students know solar energy reaches Earth through radiation, mostly in the form of visible light.

VOCABULARY KEY CONCEPT CHAPTER HOME Radiation transfers energy. radiation 1.2 SECTION OUTLINE SECTION OUTLINE wave wavelength electromagnetic spectrum CHAPTER RESOURCES CHAPTER RESOURCES Radiation is energy that travels in the form of electromagnetic waves. A wavelength is the distance between one wave crest or trough and the next.

VOCABULARY KEY CONCEPT CHAPTER HOME Energy that travels across distances as electromagnetic waves. radiation 1.2 KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY Radiation transfers energy. CHAPTER RESOURCES CHAPTER RESOURCES radiation wave wavelength electromagnetic spectrum

VOCABULARY KEY CONCEPT CHAPTER HOME A disturbance that transfers energy from one place to another. wave 1.2 KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY Radiation transfers energy. CHAPTER RESOURCES CHAPTER RESOURCES radiation wave wavelength electromagnetic spectrum

VOCABULARY KEY CONCEPT CHAPTER HOME The distance from one wave crest to the next crest; the distance from any part of one wave to the identical part of the next wave. wavelength 1.2 KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY Radiation transfers energy. CHAPTER RESOURCES CHAPTER RESOURCES radiation wave wavelength electromagnetic spectrum

VOCABULARY KEY CONCEPT CHAPTER HOME The range of all electromagnetic frequencies, including the following types (from lowest to highest frequency): radio waves, microwaves, infrared light, visible light, ultraviolet light, x-rays, and gamma rays. electromagnetic spectrum 1.2 KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY Radiation transfers energy. CHAPTER RESOURCES CHAPTER RESOURCES radiation wave wavelength electromagnetic spectrum

VOCABULARY KEY CONCEPT CHAPTER HOME Heat energy flows from warmer to cooler areas. 1.3 SECTION OUTLINE SECTION OUTLINE conduction convection density convection current CHAPTER RESOURCES CHAPTER RESOURCES CALIFORNIA Content Standards 6.3.c Students know heat flows in solids by conduction (which involves no flow of matter) and in fluids by conduction and by convection (which involves flow of matter). 6.4.d Students know convection currents distribute heat in the atmosphere and oceans.

VOCABULARY KEY CONCEPT CHAPTER HOME Heat energy flows from warmer to cooler areas. 1.3 SECTION OUTLINE SECTION OUTLINE conduction convection density convection current CHAPTER RESOURCES CHAPTER RESOURCES Conduction transfers energy by direct contact. Energy from the cocoa is transferred to the mug, to the gloves, and then to the person’s hands.

VOCABULARY KEY CONCEPT CHAPTER HOME Heat energy flows from warmer to cooler areas. 1.3 SECTION OUTLINE SECTION OUTLINE conduction convection density convection current CHAPTER RESOURCES CHAPTER RESOURCES Convection transfers energy by the motion of a gas or liquid. Less dense air rises, and denser air sinks. The warm ground transfers energy to the air. Warmer, less dense air rises and is replaced by cooler, sinking air As the air cools, it becomes denser and starts to sink. Sinking air moves to replace the rising air. When this air is warmed, it will rise and be replaced too.

VOCABULARY KEY CONCEPT CHAPTER HOME Heat energy flows from warmer to cooler areas. 1.3 SECTION OUTLINE SECTION OUTLINE conduction convection density convection current CHAPTER RESOURCES CHAPTER RESOURCES Conduction transfers energy by direct contact. Convection transfers energy by the motion of a gas or liquid. SIMULATION Find out more about convection currents. CLASSZONE.COM

VOCABULARY KEY CONCEPT CHAPTER HOME The process by which energy is transferred from a warmer object to a cooler object by means of physical contact. conduction 1.3 Heat energy flows from warmer to cooler areas. KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY CHAPTER RESOURCES CHAPTER RESOURCES conduction convection density convection current

VOCABULARY KEY CONCEPT CHAPTER HOME The transfer of energy from place to place by the motion of heated gas or liquid; in Earth’s mantle, convection is thought to transfer energy by the motion of solid rock, which when under great heat and pressure can move like a liquid. convection 1.3 Heat energy flows from warmer to cooler areas. KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY CHAPTER RESOURCES CHAPTER RESOURCES conduction convection density convection current

VOCABULARY KEY CONCEPT CHAPTER HOME A property of matter representing the mass per unit volume. density 1.3 Heat energy flows from warmer to cooler areas. KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY CHAPTER RESOURCES CHAPTER RESOURCES conduction convection density convection current

VOCABULARY KEY CONCEPT CHAPTER HOME A circulation pattern in which material is heated and rises in one area, then cools and sinks in another area, flowing in a continuous loop. convection current 1.3 Heat energy flows from warmer to cooler areas. KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY CHAPTER RESOURCES CHAPTER RESOURCES conduction convection density convection current

VOCABULARY KEY CONCEPT CHAPTER HOME I. Change occurs as energy is transferred. 1.1 KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY A. Life requires energy. 1. Uses of Energy 2. Conservation of Energy 3. Energy and Work B. Energy has many forms. Change occurs as energy is transferred. D. Energy can change from one form to another. CHAPTER RESOURCES CHAPTER RESOURCES energy heat energy temperature heat flow conservation of energy work C. Energy moves from one place to another.

VOCABULARY KEY CONCEPT CHAPTER HOME II. Radiation transfers energy. A. Radiation travels in waves. B. Earth receives radiation from the Sun. 1.2 KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY Radiation transfers energy. CHAPTER RESOURCES CHAPTER RESOURCES 1. Energy and Wavelengths 2. Electromagnetic Spectrum 3. Visible Light 1. Reflection and Absorption in the Atmosphere 2. Reflection and Absorption at Earth’s Surface 3. The Sun as an Energy Resource radiation wave wavelength electromagnetic spectrum

VOCABULARY KEY CONCEPT CHAPTER HOME III. Heat energy flows from warmer to cooler areas. A. Heat flow is transfer of energy. B. Heat flow by conduction requires contact. 1.3 Heat energy flows from warmer to cooler areas. KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY CHAPTER RESOURCES CHAPTER RESOURCES conduction convection density convection current C. Heat flow by convection involves a flow of matter. 1. Density 2. Changes in Density 3. Density and Convection Currents D. Heat energy can be transferred in different ways at the same time.

CHAPTER HOME Image Gallery SIMULATION Find out more about convection currents. CLASSZONE.COM SIMULATION Explore work by lifting virtual weights.

CHAPTER HOME Image Gallery BACK TO IMAGE GALLERY

CHAPTER HOME Image Gallery BACK TO IMAGE GALLERY

CHAPTER HOME Image Gallery BACK TO IMAGE GALLERY

CHAPTER HOME Image Gallery BACK TO IMAGE GALLERY

CHAPTER HOME Image Gallery BACK TO IMAGE GALLERY

CHAPTER HOME Image Gallery BACK TO IMAGE GALLERY

CHAPTER HOME Image Gallery BACK TO IMAGE GALLERY

CHAPTER HOME Image Gallery BACK TO IMAGE GALLERY

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