Complies with NGSS:

NGSS 3-5 Engineering Design
3-5-ETS1-1, 3-5-ETS1-2, 3-5-ETS1-3, 3-PS2-3

Core Disciplinary Ideas:
PS2.B Types of Interactions;
ETS1.A Defining and Delimiting Engineering Problems;
ETS1.B Developing Possible Solutions;
ETS1.C Optimizing the Design Solution

Engineering: Charge
Relationship between electric interactions between two objects not in contact. Review and revisit magnetic interactions for magnetics and objects not touching.