MS-PS2-3
The standard
Ask questions about data to determine the factors that affect the strength of electric and magnetic forces.
Next Generation Science Standards
What this standard means
Students need to look at data from electric or magnetic systems and ask testable questions about what changes the force strength. They should connect variables like coil turns, battery number, distance, magnet strength, and number of magnets to outcomes like paper clips lifted, motor speed, or deflection.
Mastery looks like naming the independent and dependent variables, spotting patterns, and asking a question that could be answered with more data. Students often mix up electric and magnetic forces, forget to control variables, or ask broad questions like “Why is it stronger?” instead of “How does doubling coil turns affect clips lifted?”
Ways to teach it
- Build simple electromagnets with nails, wire, and D batteries, then compare how many paper clips they lift with 10, 20, and 30 wraps.
- Show a data table from a motor test and ask, “What question could this data answer, and what new question should we test next?”
- Give students three claims about electromagnet strength and have them circle the one best supported by a small data table.
- Connect to junkyard cranes by asking why operators use electromagnets instead of permanent magnets when moving scrap metal.
Plan a lesson for MS-PS2-3
Generate a complete lesson plan aligned to this standard, with objectives, activities, and materials. Free, no account needed.
Related standards
- 3-PS2-3
Ask questions to determine cause and effect relationships of electric or magnetic interactions between two objects not in contact with each other.
- HS-PS3-5
Develop and use a model of two objects interacting through electric or magnetic fields to illustrate the forces between objects and the changes in energy of the...
- HS-PS1-3
Plan and conduct an investigation to gather evidence to compare the structure of substances at the bulk scale to infer the strength of electrical forces between...
- MS-PS2-5
Conduct an investigation and evaluate the experimental design to provide evidence that fields exist between objects exerting forces on each other even though th...