Oklahoma State Standards for Science: Grade 8

OK.1. Science Processes and Inquiry: Observe and Measure: Observing is the first action taken by the learner to acquire new information about an object, organism, or event. Opportunities for observation are developed through the use of a variety of scientific tools. Measurement allows observations to be quantified. The student will accomplish these objectives to meet this standard.

1.1. Identify qualitative and/or quantitative changes given conditions (e.g., temperature, mass, volume, time, position, length, etc.) before, during, and after an event. 18
Suggested Titles for Oklahoma Science State Standard 1.1.

1.2. Use appropriate tools (e.g., metric ruler, graduated cylinder, thermometer, balances, spring scales, stopwatches, etc.) when measuring objects, organisms, and/or events. 20
Suggested Titles for Oklahoma Science State Standard 1.2.

1.3. Use appropriate System International (SI) units (i.e., grams, meters, liters, degrees Celsius, and seconds); and SI prefixes (i.e. micro- milli-, centi-, and kilo-) when measuring objects, organisms and/or events. 20
Suggested Titles for Oklahoma Science State Standard 1.3.

OK.2. Science Processes and Inquiry: Classify: Classifying establishes order. Objects, organisms, and events are classified based on similarities, differences, and interrelationships. The student will accomplish these objectives to meet this standard.

2.1. Using observable properties, place an object, organism, and/or event into a classification system (e.g., dichotomous keys). 30
Suggested Titles for Oklahoma Science State Standard 2.1.

2.2. Identify properties by which a set of objects, organisms, and/or events could be ordered. 42
Suggested Titles for Oklahoma Science State Standard 2.2.

OK.3. Science Processes and Inquiry: Experiment: Experimenting is a method of discovering information. It requires making observations and measurements to test ideas. The student will accomplish these objectives to meet this standard.

3.1. Ask questions about the world and design investigations that lead to scientific inquiry. 4
Suggested Titles for Oklahoma Science State Standard 3.1.

3.2. Evaluate the design of a scientific investigation. 4
Suggested Titles for Oklahoma Science State Standard 3.2.

3.3. Identify variables and/or controls in an experimental setup (i.e., tested, experimental, and measured variables). 4
Suggested Titles for Oklahoma Science State Standard 3.3.

3.4. Identify a testable hypothesis for an experiment. 4
Suggested Titles for Oklahoma Science State Standard 3.4.

3.5. Design and conduct experiments. 4
Suggested Titles for Oklahoma Science State Standard 3.5.

3.6. Recognize potential hazards and practice safety procedures in all science activities. 4
Suggested Titles for Oklahoma Science State Standard 3.6.

OK.4. Science Processes and Inquiry: Interpret and Communicate: Interpreting is the process of recognizing patterns in collected data by making inferences, predictions, or conclusions. Communicating is the process of describing, recording, and reporting experimental procedures and results to others. Communication may be oral, written, or mathematical and includes: organizing ideas, using appropriate vocabulary, graphs, other visual representations, and mathematical equations. The student will accomplish these objectives to meet this standard.

4.1. Report data in an appropriate method when given an experimental procedure or data. 19
Suggested Titles for Oklahoma Science State Standard 4.1.

4.2. Interpret data tables, line, bar, trend and/or circle graphs. 19
Suggested Titles for Oklahoma Science State Standard 4.2.

4.3. Evaluate data to develop reasonable explanations, and/or predictions. 19
Suggested Titles for Oklahoma Science State Standard 4.3.

4.4. Accept or reject hypotheses when given results of an investigation. 15
Suggested Titles for Oklahoma Science State Standard 4.4.

4.5. Communicate scientific procedures and explanations. 15
Suggested Titles for Oklahoma Science State Standard 4.5.

OK.5. Science Processes and Inquiry: Inquiry: Inquiry can be defined as the skills necessary to carry out the process of scientific or systemic thinking. In order for inquiry to occur, students must have the opportunity to ask a question, formulate a procedure, and observe phenomena. The student will accomplish these objectives to meet this standard.

5.1. Use systematic observations, make accurate measurements, and identify and control variables. 16
Suggested Titles for Oklahoma Science State Standard 5.1.

5.2. Use technology to gather data and analyze results of investigations. 58
Suggested Titles for Oklahoma Science State Standard 5.2.

5.3. Review data, summarize data, and form logical conclusions. 19
Suggested Titles for Oklahoma Science State Standard 5.3.

5.4. Formulate and evaluate explanations proposed by examining and comparing evidence, pointing out statements that go beyond evidence, and suggesting alternative explanations. 19
Suggested Titles for Oklahoma Science State Standard 5.4.

OK.1. Physical Science: Properties and Chemical Changes in Matter: Physical characteristics of objects can be described using shape, size, and mass. The materials from which objects are made can be described using color, texture, and hardness. These properties can be used to distinguish and separate one substance from another. The student will engage in investigations that integrate the process standards and lead to the discovery of the following objectives:

1.1. Substances react chemically with other substances to form new substances with different characteristics (e.g., rusting, burning, reaction between baking soda and vinegar, etc.). 12
Suggested Titles for Oklahoma Science State Standard 1.1.

1.2. Matter has physical properties that can be measured (i.e., mass, volume, temperature, color, texture, density, and hardness). In chemical reactions and physical changes, matter is conserved (e.g., compare and contrast physical and chemical changes). 13
Suggested Titles for Oklahoma Science State Standard 1.2.

OK.2. Physical Science: Motions and Forces: The motion of an object can be described by its position, direction of motion, and speed. The student will engage in investigations that integrate the standards and lead to the discovery of the following objectives:

2.1. The motion of an object can be measured. The position of an object, its speed and direction can be represented on a graph. 15
Suggested Titles for Oklahoma Science State Standard 2.1.

2.2. An object that is not being subjected to a net force will continue to move at a constant velocity (in a straight line and a constant speed). 15
Suggested Titles for Oklahoma Science State Standard 2.2.

OK.3. Life Science: Diversity and Adaptations of Organisms: Millions of species of animals, plants, and microorganisms are alive today. Although different species might look dissimilar, the unity among organisms becomes apparent from an analysis of internal and external structures. Adaptation involves the selection of naturally occurring variations in populations. The student will engage in investigations that integrate the standards and lead to the discovery of the following objectives:

3.1. By classifying organisms, biologists consider details of internal and external structure. 16
Suggested Titles for Oklahoma Science State Standard 3.1.

3.2. Organisms have a great variety of internal and external structures that enable them to survive in a specific habitat such as echolocation of bats, seed dispersal methods, etc. 18
Suggested Titles for Oklahoma Science State Standard 3.2.

OK.4. Earth/Space Science: Structures and Forces of the Earth and Solar System: The earth is mostly rock, three-fourths of its surface is covered by a relatively thin layer of water, and the entire planet is surrounded by a relatively thin blanket of air, and is able to support life. The student will engage in investigations that integrate the standards and lead to the discovery of the following objectives:

4.1. Landforms result from constructive forces such as crustal deformation, volcanic eruption, and deposition of sediment and destructive forces such as weathering and erosion. 8
Suggested Titles for Oklahoma Science State Standard 4.1.

4.2. The formation, weathering, sedimentation, and reformation of rock constitute a continuing rock cycle in which the total amount of material stays the same as its form changes. 15
Suggested Titles for Oklahoma Science State Standard 4.2.

4.3. Gravity is the force that governs the motion of the solar system and holds us to the earth's surface. 6
Suggested Titles for Oklahoma Science State Standard 4.3.

OK.5. Earth/Space Science: Earth's History: The Earth's history involves periodic changes in the structures of the earth over time. The student will engage in investigations that integrate the standards and lead to the discovery of the following objectives:

5.1. Earth's history has been punctuated by occasional catastrophic events, such as the impact of asteroids or comets, enormous volcanic eruptions, periods of continental glaciation, and the rise and fall of sea level. 13
Suggested Titles for Oklahoma Science State Standard 5.1.

5.2. Fossils provide important evidence of how life and environmental conditions have changed. 21
Suggested Titles for Oklahoma Science State Standard 5.2.