Bulls-Eye

Simple marble games can be a great introduction to the study of motion … or just a great way to spend an afternoon!

Standards alignment

Common Standards — cross-referenced to the Common Core State Standards, the Next Generation Science Standards and the California Content Standards.
Standard	Framework	Grade	Subject	Domain
Plan and conduct an investigation to provide evidence of the effects of balanced and unbalanced forces on the motion of an object.	Next Generation Science Standards	Grade 3	Physical Science	Motion and Stability: Forces and Interactions
Make observations and/or measurements of an object’s motion to provide evidence that a pattern can be used to predict future motion. [Examples: a child swinging in a swing, a ball rolling back and forth in a bowl, and two children on a see-saw.]	Next Generation Science Standards	Grade 3	Physical Science	Motion and Stability: Forces and Interactions
Plan and conduct an investigation to compare the effects of different strengths or different directions of pushes and pulls on the motion of an object.	Next Generation Science Standards	Kindergarten	Physical Science	Motion and Stability: Forces and interactions
Analyze data to determine if a design solution works as intended to change the speed or direction of an object with a push or a pull.	Next Generation Science Standards	Kindergarten	Physical Science	Motion and Stability: Forces and interactions
Plan an investigation to provide evidence that the change in an object’s motion depends on the sum of the forces on the object & the mass of the object.	Next Generation Science Standards	Middle School	Physical Science	Motion and Stability: Forces and Interactions

California Standards — cross-referenced to the Common Core State Standards, the Next Generation Science Standards and the California Content Standards.
Standard	Framework	Grade	Subject	Domain
1.b. An object’s motion can be described by recording the change in its position over time.	CA Science	Grade 2	01. Physical Sciences	1. The motion of objects can be observed and measured.
1.c. The way to change how something is moving is to give it a push or a pull. The size of the change is related to the strength, or the amount of “force,” of the push or pull.	CA Science	Grade 2	01. Physical Sciences	1. The motion of objects can be observed and measured.
2. Unbalanced forces cause changes in velocity.	CA Science	Grade 8	01. Physical Sciences	2. Forces