youtor.org
>> YOUR LINK HERE: ___ http://youtube.com/watch?v=0r9Lc7oYq5M
Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now! • https://www.khanacademy.org/science/m... • Earth's seasons are caused by its tilt and revolution around the sun. When a hemisphere points toward the sun, it's summer. When a hemisphere points away from the sun, it's winter. The two hemispheres always have opposite seasons. • 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
#############################
New on site
