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Connecticut Science Curriculum Framework -- Performance Standards Grades 5-8
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CONTENT STANDARD 1: The Nature Of Science
Students will experience an inquiry-based learning environment in which they are free to ask questions, seek information and validate explanations in thoughtful and creative ways. Students also will understand that the processes, ways of knowing and conceptual foundations of science are interdependent and inextricably bound.
- conduct scientific investigations which generally involve the collection of relevant evidence, the use of logical reasoning and creativity in devising hypotheses and explanations to make sense of the evidence;
- identify and control variables in experiments;
- evaluate the strengths and weaknesses of claims, arguments or data;
- recognize that a variety of experimental designs and strategies can be developed to answer the same question;
- use appropriate technology as a tool in problem solving;
- accept the open-endedness of scientific inquiry and that scientific findings are not always definite or complete;
- use scientific knowledge and ways of thinking in personal decision making.
CONTENT STANDARD 2: History Of Science
Students will learn the evolution of scientific thought, how science has influenced culture and society, and how groups from many countries have contributed to the history of science.
- recognize important contributions to the advancement of science, mathematics and technology that have been made by men and women in different cultures at different times;
- understand that scientific discoveries are influenced by technological demands, competition, controversy, world events, personalities and societal issues;
- recognize that, throughout history, scientists and engineers have been considered valued contributors to society;
- recognize that, throughout history, it has been difficult for scientific innovators to break through the preconceptions of their time to reach conclusions which today seem obvious.
CONTENT STANDARD 3: Living Things And Their Environments
Students will understand that all organisms in the biosphere are linked to each other and to their physical environments by the transfer and transformation of matter and energy.
- describe the roles of producers, consumers and decomposers in an ecosystem and provide specific examples of each;
- explain the need for sunlight and other abiotic factors, such as water and air, in an ecosystem;
- explain that while matter is recycled in an ecosystem, there is a one-way flow of energy in ecosystems;
- explain that the number and variety of organisms and populations are dependent on the resources and physical factors of their environments;
- explain how both organisms and ecosystems can change if the physical conditions of an ecosystem change (e.g., a pond dries, a forest is destroyed by fire).
CONTENT STANDARD 4: Units Of Structure And Function
Students will understand that living things share common materials and structures which perform basic life functions.
- identify similarities and differences that characterize different types of cells (e.g., plant, animal muscle, nerve, bone);
- recognize that basic life processes, such as photosynthesis and respiration, occur at the cellular level;
- recognize that tissues and organs in multicellular organisms are made of specialized groups of cells which work together to perform specific functions;
- understand that cells divide for growth, replacement, repair and reproduction;
- understand that, while most living things are composed of cells, there are other things such as viruses that are difficult to identify as living or non-living.
CONTENT STANDARD 5: Relationships Of Structure And Function
Students will understand the classification and physiology of the great diversity of organisms and identify relationships of structure and function.
- describe the major distinctions among the kingdoms of living things (e.g., prokaryotic/eukaryotic, nucleated/non-nucleated, heterotrophic/autotrophic);
- describe ways in which internal and external structures, organ systems and body plans contribute to organisms being able to carry out life functions or processes (e.g., reproduction, response to stimuli, production and/or digestion of food, and production of energy, circulation, excretion, homeostasis);
- describe and analyze ways in which scientists determine the relatedness of organisms;
- Taxonomy AND ALL FOCUS TOPICS
http://www.beyondbooks.com/lif71/10.asp
- explain the effects of disease on the inability of organisms to carry out essential life functions;
- understand the complementary nature of structure and function;
- describe how different life functions (e.g., digestion, reproduction) are carried out by different organisms.
CONTENT STANDARD 6: Cycles Of Life
Students will recognize patterns and products of genetics and evolution.
- understand that each organism carries a set of instructions (genes) for specifying the components and functions of the organism;
- explain that differences between parents and offspring can accumulate in successive generations so that descendants are very different from their ancestors;
- recognize that individual organisms with certain traits are more likely than others to survive and have offspring;
- understand that the extinction of a species occurs when the environment changes and the species is not able to adapt to the changes;
- understand that the basic idea of biological evolution is that the Earth's present-day species developed from earlier species;
- know that the many thousands of layers of sedimentary rock provide evidence for the history of the Earth and its changing life forms.
CONTENT STANDARD 7: The Earth
Students will understand the processes and forces that shape the structure and composition of the Earth.
- describe how sediments of sand and smaller particles (sometimes containing the remains of organisms) are buried and are cemented together by dissolved minerals and compacted to form solid rock again;
- explain how rock buried deep enough may be reformed by pressure and heat into different kinds of rocks and minerals;
- recognize that some useful minerals are scarce and some exist in great quantities, but the ability to recover them is just as important as their abundance;
- recognize that the movement of heat and materials within the Earth causes earthquakes and volcanic eruptions;
- describe the formation and movement of glaciers;
- Glaciers
http://www.beyondbooks.com/ear82/9b.asp
- use maps (e.g., topographic, hydrographic, highway) to identify land features and their locations;
- recognize that some changes in the Earth's surface, such as earthquakes and volcanic eruptions, are abrupt, while other changes happen very slowly (e.g., uplift and wearing down of mountains);
- explain how human activities (such as reducing the amount of forest cover, increasing the amount and variety of chemicals released into the atmosphere, and waste disposal) have altered the Earth's land, oceans and atmosphere.
CONTENT STANDARD 8: Water
Students will understand the water cycle, including energy transfers, the distribution and characteristics of water, and its influences on human activity.
- recognize how the cycling of water in and out of the atmosphere plays an important role in determining climatic patterns and is responsible for constantly changing the phase and location of water;
- recognize that water falling to Earth flows over the surface as runoff and collects in ocean basins, rivers, lakes, icecaps and underground;
- recognize that water stored underground (subsurface) and water stored above ground (surface) form a continuum, each supplying water to the other.
CONTENT STANDARD 9: The Earth's Atmosphere
Students will understand the composition and structure of the atmosphere, including energy transfers, the nature of weather and climate, and the effect of the atmosphere on human activity.
- describe air as a mixture of gases, including water vapor and other liquid and solid particles;
- recognize that air exerts pressure and expands and contracts in relation to temperature;
- explain wind as a function of the unequal heating of the Earth's surface;
- Wind
http://www.beyondbooks.com/ear81/8c.asp
- know that water changes form as a function of energy transfer;
- The Water Cycle AND ALL FOCUS TOPICS
http://www.beyondbooks.com/ear81/3.asp
- Moisture
http://www.beyondbooks.com/ear81/8d.asp
- infer that water vapor condenses out of cooling air;
- create simple weather instruments to measure air pressure and humidity;
- How's the Weather? AND ALL FOCUS TOPICS
http://www.beyondbooks.com/ear81/8.asp
Students can use the links from the unit above to help achieve this standard.
- identify sources of thunderstorms, tornadoes, hurricanes and winter storms, and describe their impact on human activities;
- infer that our atmosphere is dynamic and has patterns of weather systems;
- recognize that high pressure areas are usually associated with clear, dry weather and low pressure areas are often associated with precipitation;
- describe and explain the reasons for the distribution of climates around the world.
CONTENT STANDARD 10: The Universe
Students will understand that the Earth is a unique, dynamic member of the solar system, located in a galaxy within a changing universe.
- understand that, to people living on the Earth, the 24-hour period of rotation of the Earth makes it seem as though the sun, moon, planets and stars are orbiting the Earth once a day;
- recognize that the sun is a medium-sized star located near the edge of a disk-shaped galaxy of stars, that the universe contains many millions of galaxies, and that each galaxy contains many billions of stars;
- describe the solar system as consisting of nine planets, different in size, composition and surface features, which all revolve around the sun in elliptical orbits;
- understand that the moon's orbit around the Earth changes how much of the lighted portion of the moon can be seen from the Earth;
- realize that the planets change their positions against the background of stars;
- recognize that the mutual gravitational attraction of the Earth, moon and sun produces the ocean's tides;
- understand that many artificial satellites now orbit the Earth and are used for a variety of purposes.
- Earth Within the Solar System AND ALL FOCUS TOPICS
http://www.beyondbooks.com/ear81/1.asp
- Current Events
http://www.beyondbooks.com/ear81/4c.asp
- Earth's Climate AND ALL FOCUS TOPICS
http://www.beyondbooks.com/ear81/7.asp
- El Niņo
http://www.beyondbooks.com/ear81/9d.asp
Students can use the links from the focus areas listed above to help achieve this standard.
CONTENT STANDARD 11: Structure Of Matter
Students will know the characteristic properties of matter and the relationship of these properties to structure and composition.
- use physical and chemical properties to classify and describe matter in terms of elements, compounds, mixtures, atoms and molecules;
- show that, while the quantity of matter is conserved, changes in matter can result in the formation of new materials;
- demonstrate that the kinetic molecular model of matter is useful in describing the structure and properties of solids, liquids and gases;
- recognize that all matter is made up atoms which are too small to be seen directly through the microscope, but that indirect evidence can be used to construct a useful model of the atom;
- recognize that atoms and molecules are perpetually in motion and that as the temperature of a substance increases, the average energy of motion also increases;
- show how features such as the temperature and acidity of a solution can influence reaction rates;
- give examples which show that changes in pressure, temperature or volume of a gas sample result in predictable changes in either or both of the other properties;
- demonstrate that some properties (such as mass and volume) depend on the amount of material and some properties (such as density, melting point and boiling point) are independent of the amount of material.
CONTENT STANDARD 12: Energy
Students will know that energy is conserved, transferred, transformed, and appears in different forms.
- recognize that energy can neither be created nor destroyed;
- identify energy transformations that occur in various systems (e.g., biological, mechanical, geological) and recognize that heat is a by product of energy transformations;
- demonstrate that heat can be transferred by convection, conduction and radiation;
- recognize that energy exists in many forms (e.g., light, heat, chemical, electrical and mechanical) and that energy can be transformed from one form to another;
- understand that all physical changes, including changes of state, require energy;
- recognize that the sun produces energy in a range of wavelengths within the electromagnetic spectrum;
- compare and contrast different forms of energy in terms of their wavelengths on the electromagnetic spectrum.
CONTENT STANDARD 13: Interaction Of Matter And Energy
Students will know that interactions between matter and energy can produce changes in a system, although the total quantities of matter and energy are unchanged.
- identify evidence that waves (e.g., light, sound, radiant) can transfer energy between two points;
- demonstrate that objects have inertia and momentum;
- recognize that the motion of one object can be described by measuring its position, direction and speed relative to another object;
- illustrate that changes in the speed and direction of an object are due to forces which have magnitude and direction;
- recognize that electric currents and magnets can exert a force on each other;
- understand that a complete circuit is necessary in order for electric current to flow.
CONTENT STANDARD 14: Science And Technology
Students will understand the relationships among mathematics, science and technology and the way they affect and are affected by society.
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