Colorado Science Standards — Grade 8


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8.1.1a

Predict and evaluate the movement of an object by examining the forces applied to it (DOK 1-2)

8.1.1b

Use mathematical expressions to describe the movement of an object (DOK 1-2)

8.1.1c

Develop and design a scientific investigation to collect and analyze speed and acceleration data to determine the net forces acting on a moving object (DOK 2-4)

8.1.2a

Gather, analyze, and interpret data to describe the different forms of energy and energy transfer (DOK 1-2)

8.1.2b

Develop a research-based analysis of different forms of energy and energy transfer (DOK 1-3)

8.1.2c

Use research-based models to describe energy transfer mechanisms, and predict amounts of energy transferred (DOK 1-2)

8.1.3a

Identify the distinguishing characteristics between a chemical and a physical change (DOK 1)

8.1.3b

Gather, analyze, and interpret data on physical and chemical changes (DOK 1-2)

8.1.3c

Gather, analyze, and interpret data that show mass is conserved in a given chemical or physical change (DOK 1-2)

8.1.3d

Identify evidence that suggests that matter is always conserved in physical and chemical changes (DOK 1)

8.1.3e

Examine, evaluate, question, and ethically use information from a variety of sources and media to investigate physical and chemical changes (DOK 1-2)

8.1.4a

Compare and contrast different types of waves (DOK 1-2)

8.1.4b

Describe for various waves the amplitude, frequency, wavelength, and speed (DOK 1)

8.1.4c

Describe the relationship between pitch and frequency in sound (DOK 1)

8.1.4d

Develop and design a scientific investigation regarding absorption, reflection, and refraction of light (DOK 2-4)

8.2.1a

Develop, communicate, and justify an evidence-based scientific example of how humans can alter ecosystems (DOK 1-3)

8.2.1b

Analyze and interpret data about human impact on local ecosystems (DOK 1-3)

8.2.1c

Recognize and infer bias in print and digital resources while researching an environmental issue (DOK 1-3)

8.2.1d

Use technology resources such as online encyclopedias, online databases, and credible websites to locate, organize, analyze, evaluate, and synthesize information about human impact on local ecosystems (DOK 1-2)

8.2.1e

Examine, evaluate, question, and ethically use information from a variety of sources and media to investigate an environmental issue (DOK 1-2)

8.2.2a

Develop, communicate, and justify an evidence-based scientific explanation for how genetic information is passed to the next generation (DOK 1-3)

8.2.2b

Use direct and indirect observations, evidence, and data to support claims about genetic reproduction and traits of individuals (DOK 1-3)

8.2.2c

Gather, analyze, and interpret data on transmitting genetic information (DOK 1-2)

8.2.2d

Use models and diagrams to predict the phenotype and genotype of offspring based on the genotype of the parents (DOK 1-2)

8.2.2e

Use computer simulations to model and predict phenotype and genotype of offspring based on the genotype of the parents (DOK 1-2)

8.3.1a

Differentiate between basic and severe weather conditions, and develop an appropriate action plan for personal safety and the safety of others (DOK 1-3)

8.3.1b

Observe and gather data for various weather conditions and compare to historical data for that date and location (DOK 1-2)

8.3.1c

Use models to develop and communicate a weather prediction (DOK 1-2)

8.3.2a

Develop, communicate and justify an evidence-based scientific explanation to account for Earths different climates (DOK 1-3)

8.3.2b

Research and evaluate direct and indirect evidence to explain how climates vary from one location to another on Earth (DOK 2-3)

8.3.2c

Examine, evaluate, and question information from a variety of sources and media to investigate how climates vary from one location to another on Earth (DOK 2-3)

8.3.3a

Construct a scale model of the solar system, and use it to explain the motion of objects in the system such a planets, Sun, Moons, asteroids, comets, and dwarf planets (DOK 2-3)

8.3.3b

Describe methods and equipment used to explore the solar system and beyond (DOK 1)

8.3.3c

Design an investigation that involves direct observation of objects in the sky, and analyze and explain results (DOK 2-4)

8.3.3d

Research, critique, and communicate scientific theories that explain how the solar system was formed (DOK 1-3)

8.3.3e

Use computer data sets and simulations to explore objects in the solar system (DOK 1-2)

8.3.3f

Recognize that mathematical models are used to predict orbital paths and events (DOK 1)

8.3.4a

Develop, communicate, and justify an evidence-based explanation using relative positions of Earth, Moon, and Sun to explain the following natural phenomenon: 1. Tides 2. Eclipses of the Sun and Moon 3. Different shapes of the Moon as viewed from Earth

8.3.4b

Analyze and interpret data to explain why we have seasons (DOK 1-2)

8.3.4c

Use models to explain the relative motions of Earth, Moon, and Sun over time (DOK 1-2)