Polar Opposites (3rd)Magnetic Interactions3rd Grade
Storyline
Phenomenon
Even when not touching, magnets can push or pull other magnets.
Science and Engineering Practices
Asking Questions and Defining Problems
Ask questions about what would happen if a variable is changed.
Ask questions that can be investigated and predict reasonable outcomes based on patterns such as cause and effect relationships.
Planning and Carrying Out Investigations
Make observations and/or measurements to produce data to serve as the basis for evidence for an explanation of a phenomenon or test a design solution.
Make predictions about what would happen if a variable changes.
Test two different models of the same proposed object, tool, or process to determine which better meets criteria for success.
Crosscutting Concepts
Cause and Effect
Students routinely identify and test causal relationships and use these relationships to explain change. They understand events that occur together with regularity might or might not signify a cause and effect relationship.
Disciplinary Core Ideas
PS2.B: Types of Interactions
The effect of unbalanced forces on an object results in a change of motion. Patterns of motion can be used to predict future motion. Some forces act through contact, some forces act even when the objects are not in contact. The gravitational force of Earth acting on an object near Earth’s surface pulls that object toward the planet’s center.