7th grade atoms and chemical reactions videos

Videos in this playlist

1. 1Introduction to middle school chemistry | Khan AcademyKhan AcademyPlay from here Loop
2. 2Atoms for Kids | What is an atom? | Learn about atoms and molecules with activities and worksheetsLearn BrightPlay from here Loop
3. 3Just How Small is an Atom?TED-EdPlay from here Loop
4. 4Atoms | Middle school chemistry | Khan AcademyKhan AcademyPlay from here Loop
5. 5Atoms | Learn about protons, neutrons, and electronsLearn BrightPlay from here Loop
6. 6What Is An Atom? | Properties of Matter | Chemistry | FuseSchoolFuseSchool - Global EducationPlay from here Loop
7. 7Elements | Middle school chemistry | Khan AcademyKhan AcademyPlay from here Loop
8. 8Elements and atomic number | Chemistry | Khan AcademyKhan AcademyPlay from here Loop
9. 9The periodic table | Middle school chemistry | Khan AcademyKhan AcademyPlay from here Loop
10. 10Reading the Periodic Table | Learn how to read the information of each elementLearn BrightPlay from here Loop
11. 11Compounds and chemical formulas | Middle school chemistry | Khan AcademyKhan AcademyPlay from here Loop
12. 12Molecules, crystals, and diatomic elements | Middle school chemistry | Khan AcademyKhan AcademyPlay from here Loop
13. 13What Is An Element, Mixture And Compound? | Properties of Matter | Chemistry | FuseSchoolFuseSchool - Global EducationPlay from here Loop
14. 14Physical changes | Middle school chemistry | Khan AcademyKhan AcademyPlay from here Loop
15. 15Chemical changes | Middle school chemistry | Khan AcademyKhan AcademyPlay from here Loop
16. 16Chemical vs. Physical Changes Video for Kids | Science Lesson for Grades 3-5 | Mini-ClipGenerationGeniusPlay from here Loop
17. 17Physical and Chemical Changes: Chemistry for Kids - FreeSchoolFree SchoolPlay from here Loop
18. 18Physical and Chemical Changes for KidsHomeschool PopPlay from here Loop
19. 19Chemical Changes: Crash Course Kids #19.2Crash Course KidsPlay from here Loop
20. 20Chemical reactions | Middle school chemistry | Khan AcademyKhan AcademyPlay from here Loop
21. 21Chemical equations | Middle school chemistry | Khan AcademyKhan AcademyPlay from here Loop
22. 22Vacation or Conservation (Of Mass): Crash Course Kids #23.1Crash Course KidsPlay from here Loop
23. 23What Is The Law of Conservation of Mass | Properties of Matter | Chemistry | FuseSchoolFuseSchool - Global EducationPlay from here Loop
24. 24Worked examples: Balancing chemical equations | Middle school chemistry | Khan AcademyKhan AcademyPlay from here Loop
25. 25Worked examples: Balancing more complex chemical equations | Middle school chemistry | Khan AcademyKhan AcademyPlay from here Loop
26. 26Energy changes in chemical reactions (part 1) | Middle school chemistry | Khan AcademyKhan AcademyPlay from here Loop
27. 27What Are Endothermic & Exothermic Reactions | Chemistry | FuseSchoolFuseSchool - Global EducationPlay from here Loop

What should a 7th grader know about atoms and reactions?

In 7th grade, students learn that all matter is made of atoms, that atoms join into molecules, and that chemical reactions rearrange atoms into new substances. After this unit they can tell a physical change from a chemical one and balance a simple equation. Grade levels vary by country and school.

How does looping help with balancing equations?

Set an A–B loop on one example in Khan Academy's "Worked examples: Balancing chemical equations". Watch it, pause, try the same equation on paper, then replay the loop to check each step. Slowing it to 0.75× gives time to count the atoms on both sides.