CK-12 Physical Science - For Middle School

5.4. References http://www.ck12.org

5.4 References

1. Christopher Auyeung. CK-12 Foundation. CC BY-NC 3.0


2. Christopher Auyeung. CK-12 Foundation. CC BY-NC 3.0


3. Christopher Auyeung. CK-12 Foundation. CC BY-NC 3.0


4. Christopher Auyeung. CK-12 Foundation. CC BY-NC 3.0


5. Christopher Auyeung. CK-12 Foundation. CC BY-NC 3.0


6. Christopher Auyeung. CK-12 Foundation. CC BY-NC 3.0


7. Agostino Carracci. http://commons.wikimedia.org/wiki/File:Democritus_by_Agostino_Carracci.jpg. Public
   Domain


8. Henry Roscoe (author), William Henry Worthington (engraver), and Joseph Allen (painter). http://commo
   ns.wikimedia.org/wiki/File:Johndalton.jpg. Public Domain


9. Christopher Auyeung. CK-12 Foundation. CC BY-NC 3.0


10. Christopher Auyeung. CK-12 Foundation. CC BY-NC 3.0


11. Christopher Auyeung. CK-12 Foundation. CC BY-NC 3.0


12. Christopher Auyeung. CK-12 Foundation. CC BY-NC 3.0


13. Christopher Auyeung. CK-12 Foundation. CC BY-NC 3.0


14. Joy Sheng. CK-12 Foundation. CC BY-NC 3.0


15. Christopher Auyeung. CK-12 Foundation. CC BY-NC 3.0


16. Bob Jagendorf. http://www.flickr.com/photos/bobjagendorf/9214248984/. CC BY 2.0


17. Christopher Auyeung. CK-12 Foundation. CC BY-NC 3.0


18. Christopher Auyeung. CK-12 Foundation. CC BY-NC 3.0