Solar eclipses | The Earth-sun-moon system | Middle school Earth and space science | Khan Academy скачать в хорошем качестве

Solar eclipses | The Earth-sun-moon system | Middle school Earth and space science | Khan Academy

Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now! https://www.khanacademy.org/science/m... A solar eclipse occurs when the moon casts a shadow on part of Earth. For those inside the shadow, the sun's disk is fully blocked from view. Solar eclipses can occur only during a new moon, when the moon and the sun are on the same side of Earth. Khan Academy is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We offer quizzes, questions, instructional videos, and articles on a range of academic subjects, including math, biology, chemistry, physics, history, economics, finance, grammar, preschool learning, and more. We provide teachers with tools and data so they can help their students develop the skills, habits, and mindsets for success in school and beyond. Khan Academy has been translated into dozens of languages, and 15 million people around the globe learn on Khan Academy every month. As a 501(c)(3) nonprofit organization, we would love your help! Donate or volunteer today! Donate here: https://www.khanacademy.org/donate Volunteer here: https://www.khanacademy.org/contribute