Problem Solving: Egg Drop

http://www.kongregate.com/games/Eggy/the-egg

In this physics based game you must get the egg into the basket quite simply by dragging around the various objects to bounce, twang, zip and push your egg into it.

Using Gears

http://www.engineering.com/GamesPuzzles/ConnectIt.aspx

Description
Solve the puzzle by placing gears in the right place, to put things in motion and connect the wires.

Walkthrough here.

Also: http://www.kongregate.com/games/ch00se/gears

Radix Endeavor from MIT

The Radix Endeavor is a massively multiplayer online game (MMO) for STEM (science, technology, engineering, and math) learning in middle and high school. An MMO is a 2- or 3-D graphical, simulated world played online where individuals take on a digital character, or avatar, that they use to represent themselves in this virtual space. They can interact with the designed environment in which activities take place, and also with other individuals' avatars or non player avatars that are part of the narrative. IMO, it is clearly designed to meet the NGSS and then some. It's beautiful and full featured and top shelf artwork. That said, it is PAINFULLY SLOW, and does not appear to be maintained by anyone. Multiple request for tech support over the weeks I've been playing have gone unanswered.

Filler: math/geometry/visual puzzles

Grow your own lovely balls, Fill your space. Don't touch little balls while you're growing! You can move while growing to avoid them. But with every level, there's more of the little brats...

Phit: strategy/geometry/task processing

fit ("Phit") shapes into a space

also available via Coolmath.com

Super Stacker 2: physics/strategy/problem solving

Super Stacker 2, via Kongregate: fun stacking game



Click to place the shapes. Don’t let them fall off the screen! Your stack must survive 10 seconds or until the shapes feel happy that they won’t fall.

Right click for sound options.

World of Goo: physics simulation

World of Goo is a physics based puzzle / construction game. The millions of Goo Balls who live in the beautiful World of Goo don't know that they are in a game, or that they are extremely delicious.

Jellyblocks: visual process strategy puzzles

Jellyblocks

http://www.addictinggames.com/jellyblocks.html

Description: Sticky blocks in sticky situations. Make just the right moves to get these blocks to stick together.

Untangle: unravel angles

Untangle, via Addicting Games

http://www.addictinggames.com/untangle.html

Click on a vertex to grab and drag it--when all the lines are no longer crossing, you've completed the puzzle.

Free, online, multiple levels, no language

Red Remover: strategy/physics

http://www.addictinggames.com/redremover.html

remove only the red blocks

Flood Fill: strategy/problem solving

http://www.smart-kit.com/games/flood_fill/

Flood Fill

online puzzle game, free with lots of ads

fill in regions so that no two adjacent regions are the same color

Azada 2: Ancient Magic

literature based puzzles game

Robinson Crusoe
Journey to Center of the Earth
Time Machine
Jekyll and Hyde
and more

walkthrough available

(photo shows puzzle from the Robinson Crusoe puzzle set)

Azada

"Trapped in a magical puzzle book, the adventurous Titus needs your help to release him from his spell. To do this, you must solve the tricky puzzles of Azada. Crack the series of puzzles and fill in the missing pages of the enchanted book to free Titus from his prison. Loads of unique puzzles to solve, boss puzzles and surprises along the way, hidden clues unlock levels. Have fun!"

Azada puzzles:

Tower of Hanoi (multiple levels)
tangrams
visual matching
matchstick moving



Strategy Guide available here:http://www.bigfishgames.com/download-games/1723/azada-strategy-guide/index.html

Walkthrough available here: http://gamewalkthrough.blogspot.com/2007/07/azada-walkthrough.html