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Our World In Space [6th Grade], Courtney Spickelmier
Our World In Space [6th Grade], Courtney Spickelmier
Understanding by Design: Complete Collection
All the components of our solar system and universe function as a system. • Gravity is the force that holds our solar system and our universe together. • Our sun and our solar system is one of hundreds of billions in our galaxy and our galaxy is one of hundreds of billions in our universe. • As Technology (including telescopes, satellites, and space travel) expands so does our knowledge of our universe, but our knowledge and technology is limited.