Learning Activities:
https://www.quia.com/jg/2280781.html (classification)


Quia Quiz
https://www.quia.com/quiz/2161522.html     (classification)

Cell Games:
http://www.sheppardsoftware.com/health/anatomy/cell/index.htm

Map Quiz Game:
https://online.seterra.com/en/vgp/3124

Metric Measurement Millionaire Game:
https://www.quia.com/rr/96635.html

Kahoot Games:

https://create.kahoot.it/details/kingdoms/3f8da722-5564-47c3-a4aa-e7f3526083a7 (classification)


Period Table Study Guides
http://www.rsc.org/periodic-table 
https://classroom.google.com/c/MTQ5NTI0NDQ2NTFa/m/MjQ4NTQzNTAzODda/details
http://periodictable.com/ 

Elements by Usage
https://www.sporcle.com/games/needapausebutton/elementary-my-dear-players

Elements by Abbreviation
​https://www.sporcle.com/games/g/elements_abbreviation

Identification of Elements
​https://www.sporcle.com/games/BajanDelawarean/progressively-tougher-elemental-symbols


Metric Unit Conversion 
https://www.mathgames.com/skill/5.7-compare-and-convert-metric-units  (easy)

https://www.thatquiz.org/tq-n/science/metric-system/  (hard)

Elements
Given name, tell abbreviation: https://www.sporcle.com/games/g/elements_abbreviation

This one's weird, but it's taking the abbreviations of elements to spell the name of a country: https://www.sporcle.com/games/WorldWhiz/countries_elements

Identify element by how it is used: https://www.sporcle.com/games/needapausebutton/elementary-my-dear-players

Fill in the periodic table: https://www.sporcle.com/games/g/elements