
Public learning track
Planning Fair Tests, Variables, and Lab Safety
3rd Grade · Science · Open Global Science
5 lessons
Goal
Learners will design fair test investigations, control variables, write repeatable procedures, and follow laboratory safety protocols.
Featured Diagrams
Identifying Independent, Dependent, and Controlled Variables
5 lessons
0 of 5 done
- 1Identifying Independent, Dependent, and Controlled VariablesUp nextStart
- 2Designing a Fair Test InvestigationPremiumNot started yet
- 3Writing Clear Step-by-Step Experimental ProceduresNot started yet
- 4Laboratory and Field Safety RulesNot started yet
- 5Conducting Repeated Trials for ReliabilityNot started yet
Standards Covered
- OGS.4.SEP.2Open Global Science Standards 2026™ · Science · Level 4 / Grade 3 (Age 8) · Grade 3Plan and conduct fair test investigations and descriptive experiments by controlling variables (identifying independent, dependent, and controlled variables), following step-by-step procedures, and demonstrating rigorous safety practices and proper handling of scientific equipment in laboratory and field settings.
- OGS.4.SEP.4Open Global Science Standards 2026™ · Science · Level 4 / Grade 3 (Age 8) · Grade 3Organize, analyze, and synthesize empirical data using tables, bar graphs, line plots, concept maps, Venn diagrams, and digital tools; recognize proportional, increasing, and decreasing trends; and identify potential sources of experimental error.
Curriculum Framework
3rd Grade · Science · Open Global Science
1
5 lessons
Scientific Questioning, Hypotheses, and Problem Definition
Learners will pose testable questions, formulate clear hypotheses based on observable patterns, and define engineering problems using background research.
2
5 lessons
Planning Fair Tests, Variables, and Lab Safety
Learners will design fair test investigations, control variables, write repeatable procedures, and follow laboratory safety protocols.
3
8 lessons
Metric Measurement and Laboratory Tools
Learners will select, use, and calibrate standard scientific tools to collect precise quantitative and qualitative data.
4
7 lessons
Organizing Data, Graphing, and Analyzing Trends
Learners will organize experimental observations into tables, construct graphs, interpret proportional and non-proportional trends, and detect experimental errors.
5
5 lessons
Scientific Modeling, Prototypes, and Engineering Design
Learners will develop physical, conceptual, and digital models, evaluate model limitations, and iteratively improve engineering prototypes.
6
5 lessons
Evidence-Based Explanations, Conclusions, and Discourse
Learners will construct scientific explanations using claims, evidence, and reasoning, communicate findings through multi-modal formats, and participate in collaborative scientific argumentation.