Ontario Grade 9 Destreamed Science (SNC1W1) 2026 Practice Exam

A solar eclipse occurs when the Moon passes between the Earth and the Sun, resulting in the Moon obscuring the Sun from the perspective of an observer on Earth. This alignment can cause the Sun to appear partially or completely covered, depending on the specific type of solar eclipse, such as a total or partial eclipse.

The phenomenon is distinctly marked by this direct alignment, which is why the definition is grounded in the action of the Moon obstructing sunlight. During this event, observers situated in the path of the eclipse can experience the dramatic transition of light and temperature, which can also be accompanied by other observable effects, such as changes in animal behavior.

Understanding a solar eclipse as defined involves recognizing the relationship between the three celestial bodies: the Earth, the Moon, and the Sun, and how their positions relative to each other create this fascinating astronomical event.