Plate boundary — Science definition
A region where tectonic plates interact through relative motion.
Where it is taught
- Moving Plates, Boundaries & Earth Evidence — Earth Systems, Plates & Earth Materials, Science 6: Matter, Energy & Earth Systems, Grade 6
Questions using plate boundary
Problem 1
Which statement correctly uses plate boundary in Moving Plates, Boundaries & Earth Evidence?
- A boundary map predicts the exact time of the next earthquake.
- Every coastline is necessarily a plate boundary.
- plate boundary: A region where tectonic plates interact through relative motion.
- One illustrative result establishes every real condition and needs no further evidence.
Answer and explanation
plate boundary: A region where tectonic plates interact through relative motion.
A region where tectonic plates interact through relative motion. Separation grows by 6.0 cm in three years, a mean relative rate of 2.0 cm/year. Together with the ridge, this supports a divergent-boundary interpretation in the supplied model. It does not establish that each plate moves at exactly 2 cm/year or predict every earthquake or volcano.