Public learning track
Experimental Design, Variables, and Field Safety
8th Grade · Science · Open Global Science
5 lessons
Goal
Plan and conduct descriptive, comparative, and experimental investigations while manipulating variables and upholding rigorous laboratory and field protocols.
Featured Diagrams
Identifying Independent, Dependent, and Controlled Variables
5 lessons
0 of 5 done
- 1Identifying Independent, Dependent, and Controlled VariablesUp nextStart
- 2Distinguishing Descriptive, Comparative, and Experimental StudiesPremiumNot started yet
- 3Designing Control Groups and Repeated TrialsNot started yet
- 4Laboratory Safety, Chemical Handling, and Hazard MitigationNot started yet
- 5Fieldwork Ethics and Cultural Site ProtocolsNot started yet
Standards Covered
- OGS.9.SEP.2Open Global Science Standards 2026™ · Science · Level 9 / Grade 8 (Age 13) · Grade 8Plan and conduct descriptive, comparative, and experimental investigations; identify, control, and manipulate independent, dependent, and controlled variables; and maintain rigorous laboratory safety and cultural site protocols.
- OGS.9.SEP.7Open Global Science Standards 2026™ · Science · Level 9 / Grade 8 (Age 13) · Grade 8Evaluate how scientific knowledge evolves with new empirical evidence and diverse cultural perspectives; analyze personal and public health decisions regarding nutrition, exercise, and substance use; and explore STEM career pathways.
Curriculum Framework
8th Grade · Science · Open Global Science
1
5 lessons
Scientific Questions, Hypotheses, and Theoretical Frameworks
Formulate testable questions and hypotheses, define engineering design problems, and distinguish among hypotheses, theories, and scientific laws.
2
5 lessons
Experimental Design, Variables, and Field Safety
Plan and conduct descriptive, comparative, and experimental investigations while manipulating variables and upholding rigorous laboratory and field protocols.
3
5 lessons
Precision SI Measurement and Sensor Data Acquisition
Select and safely use precision instruments and digital sensors to gather SI quantitative data and document systematic qualitative observations.
4
5 lessons
Mathematical Modeling, Graphical Analysis, and Error
Construct mathematical models, tables, and graphs across repeated trials to analyze quantitative trends, identify anomalies, and quantify experimental error.
5
5 lessons
Scientific and Engineering Modeling Systems
Develop, evaluate, and refine physical, conceptual, and digital models to explain phenomena, identify scale factors, and optimize engineering systems.
6
4 lessons
Scientific Argumentation, Evidence, and Source Evaluation
Construct and defend evidence-based scientific arguments, critically evaluate secondary sources and competing claims, and practice academic skepticism.
7
4 lessons
Science in Society: Health, Ethics, and STEM Careers
Evaluate the evolution of scientific knowledge across cultures, make evidence-based personal health decisions, and explore STEM career pathways.