HS Science Core Curriculum Content - Technology Connections

Science
Grades 8 - 11 with Assessment at Grade 11

Conceptual Understandings: Physical Science
Academic Expectations: 2.2 Patterns of Change, 2.3 Systems, 2.4 Scale and Models, 2.5 Constancy, and 2.6 Change Over Time

CC#	Core Content	Activities/Demonstrators/Technology

Structure of Atoms
SC-H-1.1.1	Matter is made of minute particles called atoms, and atoms are composed of even smaller components. The components of an atom have measurable properties such as mass and electrical charge. Each atom has a positively charged nucleus surrounded by negatively charged electrons. The electric force between the nucleus and the electrons holds the atom together.	Reactions in Chemistry http://www.learner.org/resources/series168.html The World of Chemistry http://www.learner.org/resources/series61.html Frosty the Snowman Meets His Demise: An Analogy to Carbon Dating Carbon Structure Matters Junior Science Chemistry Worksheets ChemTeam: Atomic Structure PWLN Chemistry Series: Atomic Structure PWLN Chemistry Series: Electronic Structure PWLN Chemistry 1: Atoms, Molecules, and Ions PWLN Chemistry 1: The Electronic Structure of Atoms PWLN Science Fundamentals: Chemistry Course: Electronic Structure of Atoms SAS CP - 686 Atoms & Molecules SAS CP - 464 Bond, Chemical Bond SAS CP - Activity: The Evolution of Atomic Theory SAS CP - 256 Molecular Structures SAS CP - 57 What good is the periodic table, anyway? SAS CP - 7 Electronic Transitions Smile Program Chemistry Index High School Chemistry CD Spectroscope
SC-H-1.1.2	The atom’s nucleus is composed of protons and neutrons that are much more massive than electrons. When an element has atoms that differ in the number of neutrons, these atoms are called different isotopes of the element.	Reactions in Chemistry http://www.learner.org/resources/series168.html The World of Chemistry http://www.learner.org/resources/series61.html Frosty the Snowman Meets His Demise: An Analogy to Carbon Dating PWLN Chemistry Series: Atomic Structure PWLN Chemistry Series: Electronic Structure PWLN Chemistry 1: Atoms, Molecules, and Ions PWLN Chemistry 1: The Electronic Structure of Atoms PWLN Science Fundamentals: Chemistry Course: Electronic Structure of Atoms See also 1.1.1
SC-H-1.1.3	The forces that hold the nucleus together, at nuclear distances, are usually stronger than the forces that would make it fly apart. Nuclear reactions convert a fraction of the mass of interacting particles into energy, and they can release much greater amounts of energy than atomic interactions. Fission is the splitting of a large nucleus into smaller pieces. Fusion is the joining of two nuclei at extremely high temperature and pressure. Fusion is the process responsible for the energy of the Sun and other stars.	Reactions in Chemistry http://www.learner.org/resources/series168.html The World of Chemistry http://www.learner.org/resources/series61.html Chem Team Radioactivity PWLN Chemistry Series: Chemical Transformations: Chemical Reactions PWLN Science Fundamentals: Chemistry Course: Chemical Reaction See 1.1.1
Structure and Properties of Matter
SC-H-1.2.1	Atoms interact with each other by transferring or sharing outermost electrons. These outer electrons govern the chemical properties of the element.	Reactions in Chemistry http://www.learner.org/resources/series168.html The World of Chemistry http://www.learner.org/resources/series61.html Gas Law Simulation and http://intro.chem.okstate.edu/WorkshopFolder/Electronconf.html Junior Science Chemistry Worksheets Carbon Structure Matters Chem Team Bonding Chem Team Chemical Nomenclature Chem Team VSEPR Theory PWLN Chemistry Series: Introduction to Chemistry PWLN Chemistry Series: Atomic Structure PWLN Science Fundamentals: Chemistry Course: Electronic Structure of Atoms SAS CP - 692 The Nature of Matter SAS CP - 675 Properties of Matter SAS CP - 453 Elements & Matter: It's Classified SAS CP - Activity: Melting Points & Boiling Points SAS CP - 245 The Matter of Murder SAS CP - 470 Periodic Properties SAS CP - Activity: Name that Chemical! SAS CP - 262 It's Elementary SAS CP - 63 Which has more mass-salt or sugar? SAS CP - 11 Density SAS CP - 7 Electron Transitions SAS CP - 46 What are the rules for deciphering "code names" such as NaCl, CO and CU(OH)2? High School Chemistry
SC-H-1.2.2	An element is composed of a single type of atom. When elements are listed according to the number of protons, repeating patterns of physical and chemical properties identify families of elements with similar properties. The periodic table is a consequence of the repeating pattern of outermost electrons.	Reactions in Chemistry http://www.learner.org/resources/series168.html The World of Chemistry http://www.learner.org/resources/series61.html Chem Team VSEPR Theory PWLN Chemistry Series: Periodic Table and Trends PWLN Chemistry 1: Measurement and Calculation PWLN Chemistry 1: Classification of Matter Periodic Table of the Element (and more) See 1.2.1
SC-H-1.2.3	Bonds between atoms are created when outer electrons are paired by being transferred or shared. A compound is formed when two or more kinds of atoms bind together chemically.	Reactions in Chemistry http://www.learner.org/resources/series168.html The World of Chemistry http://www.learner.org/resources/series61.html Carbon Structure Matters Carbon is 4 Ever Mission Selector Synonyms of Chemicals Chem Team Bonding Chem Team Electrons in Atoms Chem Team Chemical Nomenclature Chem Team Reduction Oxidation Chem Team VSEPR Theory PWLN Chemistry Series: Naming Chemical Compounds PWLN Chemistry Series: Gases & Their Properties PWLN Chemistry 1: The Physical Behavior of Gases PWLN Chemistry Series: Chemical Transformations: States of Matter See 1.2.1
SC-H-1.2.4	The physical properties of compounds reflect the nature of the interactions among molecules. These interactions are determined by the structure of the molecule including the constituent atoms.	Reactions in Chemistry http://www.learner.org/resources/series168.html The World of Chemistry http://www.learner.org/resources/series61.html Gas Law Simulation and http://intro.chem.okstate.edu/WorkshopFolder/Electronconf.html Carbon Structure Matters Carbon is 4 Ever Mission Selector PWLN Chemistry Series: Properties of Acids, Bases and Salts PWLN Chemistry Series: Gases & Their Properties PWLN Chemistry 1: Chemical Formulas and Equations PWLN Chemistry 1: The Physical Behavior of Gases PWLN Chemistry 1: Chemical Bonding PWLN Chemistry Series: Bonding I PWLN Chemistry Series: Bonding II PWLN Chemistry Series: Chemical Transformation: Formulas, Equations &Stoichiometry PWLN Chemistry Series: Chemical Transformations: States of Matter PWLN Science Fundamentals: Chemistry Course: Ionic and Covalent Chemical Bonds SAS CP - 689 Properties of Mixtures SAS CP - 467 Making Sense of Solubility SAS CP - Activity The Mystery of the Zeroes SAS CP - 259 Pure Substance or Mixture? SAS CP - 60 What do ice cream and antifreeze have in common? SAS CP - 866 Measures of Concentration SAS CP - 690 Solution Chemistry SAS CP - 468 Buffered Solutions SAS CP - Activity: Indicator Lab SAS CP - 260 The Chemistry of Batteries SAS CP - 61 What kinds of acids and bases are there? SAS CP - 9 Acid-Base Chemistry SAS CP - 668 Changes in Matter
SC-H-1.2.5	Solids, liquids, and gases differ in the distances between molecules or atoms and therefore the energy that binds them together. In solids, the structure is nearly rigid; in liquids, molecules or atoms move around each other but do not move apart; and in gases, molecules or atoms move almost independently of each other and are relatively far apart.	Reactions in Chemistry http://www.learner.org/resources/series168.html Smile Program Chemistry Index The World of Chemistry http://www.learner.org/resources/series61.html PWLN Chemistry Series: Solutions PWLN Chemistry 1: Liquids, Solids, and Intermolecular Forces PWLN Chemistry 1: Solutions PWLN Chemistry Series: Chemical Transformations: States of Matter PWLN Chemistry 2: Gas Phase Equilibria PWLN Chemistry 2: Acids and Bases PWLN Chemistry 2: Aqueous Equilibria PWLN Chemistry 2: Free Energy, Entropy, Equilibrium PWLN Chemistry 2: Electrochemistry PWLN Chemistry 2: Main Group Chemistry PWLN Chemistry 2: Coordination Chemistry PWLN Science Fundamentals: Chemistry Course: Solutions PWLN Science Fundamentals: Chemistry Course: Acids, Bases, and Salts SAS CP - 688 Phases of Matter SAS CP - 466 The Solid State SAS CP - Activity: Gases in Action: Popcorn Anaysis SAS CP -258 Phase Diagrams SAS CP- 59 Why do helium balloons shrink faster than air-filled balloons? SAS CP - 8 Gas Laws SAS CP - 703 Fluids SAS CP - 481 Sink or Swim SAS CP - Activity: Identity Crisis SAS CP - 273 Air Density SAS CP - 74 Could the Nautilus Travel 20,000 leagues beneath the sea? SAS CP - 446 How Reactions Rate SAS CP - Activity: Reaction Time SAS CP - 238 Conserving Mass SAS CP - 68 Orange juice, Jello, and mayonnaise - what makes them different? SAS CP- 697 Solutions SAS CP - 475 pHenomenal Acids & Bases SAS CP - Activity: Saline Solution Lab SAS CP- 267 Indistrial-Strength Acids & Bases Microscale Gas Chemistry Chapter 2: Matter http://dbhs.wvusd.k12.ca.us/webdocs/Matter/Matter.html
SC-H-1.2.6	In conducting materials, electrons flow easily; whereas, in insulating materials, they can hardly flow at all. Semiconducting materials have intermediate behavior. At low temperatures, some materials become superconductors and offer no resistance to the flow of electrons.	Reactions in Chemistry http://www.learner.org/resources/series168.html The World of Chemistry http://www.learner.org/resources/series61.html PWLN Chemistry Series: Thermochemistry PWLN Chemistry 2: Gas Phase Equilibria PWLN Chemistry 2: Acids and Bases PWLN Chemistry 2: Aqueous Equilibria PWLN Chemistry 2: Free Energy, Entropy, Equilibrium PWLN Chemistry 2: Electrochemistry PWLN Chemistry 2: Main Group Chemistry PWLN Chemistry 2: Coordination Chemistry SAS CP - 693 Thermochemistry SAS CP - 471 Gibbs Free Energy SAS CP - Activity: Nutrition Labels Mishap SAS CP - 263 Heat Exchange Lab SAS CP - 64 How can chemical reactions be diagrammed? SAS CP - 868 Calorimetry SAS CP - 241 Game-Show Thermodynamics
Chemical Reactions
SC-H-1.3.1	Chemical reactions occur all around us and in every cell in our bodies. These reactions may release or consume energy. Rates of chemical reactions vary. Reaction rates depend on concentration, temperature, and properties of reactants. Catalysts speed up chemical reactions.	Reactions in Chemistry http://www.learner.org/resources/series168.html The World of Chemistry http://www.learner.org/resources/series61.html Chemistry Resources Junior Science Chemistry Worksheets Chem Team Balancing Equations & Reaction Types Chem Team Kinetic Molecular Theory & Reaction Types Chem Team Kinetics Chem Team Stoichiometry Smile Program Chemistry Index Chemistry Demonstrations The Catalyst High School Chemistry Leeds Chemistry Lecture Demonstrations Junior Science Chemistry Worksheets PWLN Chemistry Series: Chemical Transformations: Formulas, Equations, & Stoichiometry PWLN Chemistry Series: Chemical Transformations: Chemical Equilibrium PWLN Chemistry Series: Chemical Transformations: Chemical Reactions PWLN Chemistry Series: Chemical Transformations: Solubility & Precipitation PWLN Chemistry Series: Chemical Transformations: Reaction Rates PWLN Chemistry 2: Chemical Reaction Rates SAS CP - 687 Chemical Reactions SAS CP - 465 The Chemical Basis of Industry SAS CP - Activity: Balancing Chemical Equations SAS CP - 257 Chemical Reactions:Classes and Characteristics SAS CP - 58 Can seashells explode? SAS CP - 867 Precipitation Reactions SAS CP - 691 Stoichiometry SAS CP - 469 Chemical ID SAS CP- Activity: Kitchen Stoichiometry SAS CP - 261 Wanted: Five Grams of Silver Chloride SAS CP- 62 How much metal does it take to float a blimp? SAS CP - 10 Limiting Reactants SAS CP - 39 What's the connection between dots and compounds?
Motion and Forces
SC-H-1.4.1	Objects change their motion only when a net force is applied. Laws of motion are used to describe the effects of forces on the motion of objects.	The Mechanical Universe http://www.learner.org/resources/series42.html Foucault’s Pendulum Force and Motion (Elem and Middle Grades - can be adapted for high school) SAS CP - 704 Forces SAS CP- 673 Forces SAS CP - 451 It's Simple SAS CP - Activity: Leveraging Your Pennies SAS CP - 243 "Hooked" on Springs SAS CP- 694 Motion SAS CP- 472 Falling Bodies SAS CP - Activity: 3,2,1,Liftoff SAS CP - 264 Gathering Momentum SAS CP - 482 Weight on Other Worlds SAS CP - Activity: Shoe Friction SAS CP - 274 Newton's Second Law SAS CP - 75 How are action and reaction forces related to the net force acting on an object? SAS CP - 44 As you sit in that chair, is the force with you? SAS CP - 65 Why does an object moving in a circle always accelerate? High School Chemistry
SC-H-1.4.2	Gravity is a universal force that each mass exerts on every other mass.	The Mechanical Universe http://www.learner.org/resources/series42.html
SC-H-1.4.3	The electric force is a universal force that exists between any two charged objects. Opposite charges attract while like charges repel.	The Mechanical Universe http://www.learner.org/resources/series42.html Foucault’s Pendulum SAS CP - 702 Electricity & Magnetism SAS CP - 670 Electricity & Magnetism SAS CP - 448 Magnet Magic SAS CP - 41 Why do I get a shock when I touch the doorknob after walking across the carpet in stocking feet? SAS CP - Activity: Have You Seen the Light? SAS CP - 240 Electronic Shopping Spree SAS CP - 480 Lorentz Force and Induction SAS CP - Activity: Magnetism SAS CP - 272 Conduction SAS CP-73 Electric potential and electric potential energy - the same or different?
SC-H-1.4.4	Electricity and magnetism are two aspects of a single electromagnetic force. Moving electric charges produce magnetic forces, and moving magnets produce electric forces. This idea underlies the operation of electric motors and generators.	The Mechanical Universe http://www.learner.org/resources/series42.html See 1.4.3
Conservation of Energy and Increase in Disorder
SC-H-1.5.1	The total energy of the universe is constant. Energy can be transferred in many ways, but it can neither be created nor destroyed.	Chem Team Equilibrium Chem Team Thermochemistry High School Chemistry SAS CP - 707 Momentum & Energy SAS CP - 485 Conservation of Momentum SAS CP- Activity: Follow the Bouncing Ball SAS CP - 277 Elastic Collisions SAS CP - 78 How much work does it take to eat a cookie? SAS CP - 698 Natural Resources SAS CP - The Trouble with Humans SAS CP - Activity: Fuel Analysis SAS CP - 268 Nuclear Power: Pros & Cons SAS CP - 42 Why does ice float? SAS CP - 69 How can the world prolong its use of oil?
SC-H-1.5.2	All energy can be considered to be either kinetic energy, potential energy, or energy contained by a field (e.g., electric, magnetic, gravitational).	SAS CP - 705 Linear Motion SAS CP - 483 Constant Acceleration SAS CP - Activity: Hang Time SAS CP - 275 Detecting Motion SAS CP - 76 What kinematic equations can be used to sove for displacement, velocity, acceleration, and time?
SC-H-1.5.3	Heat is the manifestation of the random motion and vibrations of atoms, molecules, and ions. The greater the atomic or molecular motion, the higher the temperature.	SAS CP - 708 Projectile & Rotational Motion SAS CP - 486 Projectile Motion SAS CP - Activity: Angular Speed SAS CP- 278 Rotational (Moment of) Inertia SAS CP - 79 What are vectors and what is vector algebra?
SC-H-1.5.4	The universe becomes less orderly and less organized over time. Thus, the overall effect is that the energy is spread out uniformly. For example, in the operation of mechanical systems, the useful energy output is always less than the energy input; the difference appears as heat.	Chem Team Thermochemistry
Interactions of Energy and Matter
SC-H-1.6.1	Waves, including sound and seismic waves, waves on water, and electromagnetic waves, can transfer energy when they interact with matter. Apparent changes in frequency can provide information about relative motion.	On-Line Investigation - "Exploring the Environment: UV Menace" SAS CP - 709 Sound & Light SAS CP - 487 Refraction and Reflection SAS CP - Activity: Hooke's Law SAS CP - 279 The Sound of One Hand Tapping SAS CP - 80 What is the Doppler effect, and why is it important to understand? SAS CP- 701 Waves SAS CP - 479 Ocean in Motion CD Spectroscope High School Chemistry
SC-H-1.6.2	Electromagnetic waves, including radio waves, microwaves, infrared radiation, visible light, ultraviolet radiation, x-rays, and gamma rays, result when a charged object is accelerated.	On-Line Investigation - "Exploring the Environment: UV Menace" Chem Team Electrons in Atoms SAS CP - 706 Modern Physics SAS CP - 484 Relative Time SAS CP - Activity: Radioactivity SAS CP- 276 Line Spectra SAS CP - 77 Area all nuclear reactions the same? SAS CP - Activity: The Full Spectrum SAS CP - 271 Telescope Analysis SAS CP - 72 Reflection and refraction-are these processes as similar as their names? CD Spectroscope

Conceptual Understandings: Earth and Space Science
Academic Expectations: 2.2 Patterns of Change, 2.3 Systems, 2.4 Scale and Models, 2.5 Constancy, and 2.6 Change Over Time

Energy in the Earth System
SC-H-2.1.1	Earth systems have sources of energy that are internal and external to the Earth. The Sun is the major external source of energy. Two primary sources of internal energy are the decay of radioactive isotopes and the gravitational energy from Earth’s original formation.	Energy: The U.S. in Crisis? Earth Movers KET 4 - Planet Earth Episode: The Solar Sea (1 hr.) http://www.learner.org/resources/series49.html SAS CP - 474 Earth's Future Can Crush Demo
SC-H-2.1.2	The outward transfer of Earth’s internal heat drives convection circulation in the mantle. This causes the crustal plates to move on the face of the Earth.	The Ring of Fire Earth Movers KET 4 - Planet Earth Episode: The Living Machine http://www.learner.org/resources/series49.html KET 4 - Planet Earth Episode: Gifts from the Earth (1 hr.) http://www.learner.org/resources/series49.html
SC-H-2.1.3	Heating of Earth’s surface and atmosphere by the Sun drives convection within the atmosphere and oceans, producing winds and ocean currents.	On-Line Investigation - "Exploring the Environment: Severe Weather-Hurricanes" On-Line Investigation - "Exploring the Environment: Weather or Not" PWLN Science Fundamentals: Earth Science: The Atmosphere An Ocean of Air SAS CP - 265 Current Events
SC-H-2.1.4	Global climate is determined by energy transfer from the Sun at and near Earth’s surface. This energy transfer is influenced by dynamic processes such as cloud cover and the Earth’s rotation and static conditions such as the position of mountain ranges and oceans.	KET 4 - Planet Earth Episode: The Climate Puzzle (1 hr.) http://www.learner.org/resources/series49.html On-Line Lesson - "Find Yourself with Global Positioning" On-Line Lesson - "The Environments of Big Sur - Which Do We Protect?" On-Line Investigation - "Exploring the Environment: Earth on FIre" On-Line Investigation - "Exploring the Environment: Global Climate Change" On-Line Investigation - "Exploring the Environment: Severe Weather-Hurricanes" On-Line Investigation - "Exploring the Environment: Weather or Not" SAS CP - 695 Earth's Hydrosphere SAS CP - 473 Balancing the Water Budget SAS CP - Activity: The Underground Architect: Water SAS CP - 265 Current Events
Geochemical Cycles
SC-H-2.2.1	Earth is a system containing essentially a fixed amount of each stable chemical atom or element. Each element can exist in several different reservoirs. Each element on Earth moves among reservoirs in the solid Earth, oceans, atmosphere, and organisms as part of geochemical cycles.	Frosty the Snowman Meets His Demise: An Analogy to Carbon Dating KET 4 - Planet Earth Episode: The Blue Planet (1 hr.) http://www.learner.org/resources/series49.html PWLN Science Fundamentals: Earth History: Exogenous Processes PWLN Science Fundamentals: Earth History: Endogenous Processes PWLN Science Fundamentals: Earth History: Oceans of the World SAS CP- 696 Earth's Structure and History SAS CP - 695 Earth's Hydrosphere
SC-H-2.2.2	Movement of matter between reservoirs is driven by Earth’s internal and external sources of energy. These movements are often accompanied by a change in physical and chemical properties of the matter. Carbon, for example, occurs in carbonate rocks such as limestone, in the atmosphere as carbon dioxide gas, in water as dissolved carbon dioxide, and in all organisms as complex molecules that control the chemistry of life.	Frosty the Snowman Meets His Demise: An Analogy to Carbon Dating Objects in the Sky PWLN Science Fundamentals: Earth History: Exogenous Processes PWLN Science Fundamentals: Earth History: Endogenous Processes SAS CP - 700 Rocks Minerals & Soil SAS CP- 478 A Rock is a Rock SAS CP- Activity: Soil pH & Solubility SAS CP - 270 Mineral Facts Sheets SAS CP - 71 Does that rock have a future?
The Formation and Ongoing Changes of the Earth System
SC-H-2.3.1	The Sun, Earth, and the rest of the solar system formed approximately 4.6 billion years ago from a nebular cloud of dust and gas.	Earth Revealed http://www.learner.org/resources/series78.html KET 4 - Planet Earth Episode: Tales from Other Worlds (1 hr.) http://www.learner.org/resources/series49.html PWLN Science Fundamentals: Earth Science: Astronomy: A Study of Space PWLN Science Fundamentals: Earth Science: Earth in Space PWLN Science Fundamentals: Earth Science: Earth History SAS CP- 696 Earth's Structure and History SAS CP - Activity: Ancient Earth Measurements SAS CP - 669 Earth & Moon SAS CP - Activity: Time is Relative SAS CP - 447 Lunar Myths SAS CP- 239 Starry, Starry Night SAS CP - 40 Our moon: sister, daughter, or spouse of the earth?
SC-H-2.3.2	Techniques used to estimate geological time include using radioactive dating, observing rock sequences, and comparing fossils to correlate the rock sequences at various locations.	Earth Revealed http://www.learner.org/resources/series78.html Radioactive Decay: A Sweet Simulation of Half-Life PWLN Science Fundamentals: Earth Science: Composition of the Earth's Crust SAS CP - 700 Rocks, Minerals & Soil SAS CP - 477 Pangea Today? SAS CP - Activity: Plate Tectonics and the Fossil Record SAS CP - 67 Can you really dig a hole to China?
SC-H-2.3.3	Interactions among the solid Earth, the oceans, the atmosphere, and living things have resulted in the ongoing development of a changing Earth system. Earthquakes and volcanic eruptions can be observed on a human time scale, but many processes, such as mountain building and plate movements, take place over hundreds of millions of years.	Earth Revealed http://www.learner.org/resources/series78.html The Ring of Fire Objects in the Sky Earth Movers Smart Rock On-Line Lesson - "Dig into Ireland" On-Line Lesson - "Global Warming Statistics" On-Line Lesson - "Living With Risk: The Human Element of Natural Disasters" On-Line Lesson - "Our Savage Planet in the News" PWLN Science Fundamentals: Earth Science: Earth History SAS CP- Activity The Underground Architect SAS CP - 269 Patterns of Fury SAS CP - 70 Would you survive?
SC-H-2.3.4	Evidence for one-celled forms of life, the bacteria, extends back more than 3.5 billion years. The changes in life over time caused dramatic changes in the composition of the Earth’s atmosphere, which did not originally contain oxygen.	Earth Revealed http://www.learner.org/resources/series78.html The Ring of Fire Smart Rock On-Line Lesson - "Evolution: Its Effect Throughout Geological Time and the Controversy" On-Line Lesson - "Global Warming Statistics" On-Line Lesson - "Living With Risk: The Human Element of Natural Disasters" On-Line Lesson - "Our Savage Planet in the News"
The Formation and Ongoing Changes of the Universe
SC-H-2.4.1	The big bang theory and observational measurements that support it place the origin of the universe at a time between 10 and 20 billion years ago, when the universe began in a hot dense state. According to this theory, the universe has been expanding since then.	KET 4 - Planet Earth Episode: Fate of the Earth (1 hr.) http://www.learner.org/resources/series49.html On-Line Lesson - "Puzzling Planets" On-Line Lesson - "Visualizing the Invisible" On-Line Investigation - "Exploring the Environment: Mars Landing Situation" PWLN Science Fundamentals: Earth Science: Earth History SAS CP - 672 Stars & Galaxies SAS CP - 450 Constellations SAS CP - Activity: Galaxies in Motion SAS CP - 242 Life of a Star SAS CP - 43 Quasars and active galaxies: cannibals of the cosmos? SAS CP - Do other stars have planets like our sun's?
SC-H-2.4.2	Early in the history of the universe, the first atoms to form were mainly hydrogen and helium. Over time, these elements clump together by gravitational attraction to form trillions of stars.	On-Line Lesson - "Visualizing the Invisible" See 2.4.1
SC-H-2.4.3	Stars have life cycles of birth through death that are analogous to those of living organisms. During their lifetimes, stars generate energy from nuclear fusion reactions that create successively heavier chemical elements. Some stars explode at the end of their lives, and the heavy elements they have created are blasted out into space to form the next generation of stars and planets.	On-Line Lesson - "Puzzling Planets" On-Line Lesson - "Visualizing the Invisible" See 2.4.1

Conceptual Understandings: Life Science

Henderson County Schools Henderson, Kentucky Educating for a Lifetime	SAS CP = *SAS in School, Curriculum Pathways* Your school will need a subscription. The link will take you to the log on page. When logged in, you can search for the lesson listed. PWLN = PLATO Web Learning Network Your school will need a subscription. The link will take you to the Henderson County Schools log on page. When logged in, you can preview or assign the lesson to your class. *Revised 08/10/2004*
Behavior of Organisms, The Biological Change Cell, The Chemical Reactions Conservation of Energy and Increase in Disorder	Energy in the Earth System Formation and Ongoing Changes of the Earth System, The Formation and Ongoing Changes of the Universe, The Geochemical Cycles Interactions of Energy and Matter Interdependence of Organisms, The	Matter, Energy, and Organization in Living Systems Molecular Basis of Heredity, The Motion and Forces Structure of Atoms Structure and Properties of Matter