Inquiry-based learning (also enquiry-based learning in British English)[1] is a form of active learning that starts by posing questions, problems or scenariosârather than simply presenting established facts or portraying a smooth path to knowledge. The process is often assisted by a facilitator.
A tiltmeter on Mauna Loa, used to predict eruptions by measuring very small changes in the profile of the mountain. A tiltmeter is a sensitive inclinometer designed to measure very small changes from the vertical level, either on the ground or in structures.
A planet's axial tilt is a measure of whether the planet is in prograde (the natural direction of rotation of most bodies in our solar system) or retrograde (the opposite, ie, from East to West) rotation. Tilt angle is measured relative to the orbital plane of a planet.