Test Chambers

Test Chambers are a vital part of the Portal series. Thanks to the Security Cameras fixed onto the walls of Test Chambers at various points, GLaDOS can track a Test Subject's movements and progress. There are multiple Test Chambers throughout The Enrichment Centre. . Upon entering a Test Chamber one acquires a bare (minimal) feeling, similar to a hospital with its sterile environment; this is due to the lighting used within chambers, and the colors of the panels as well.

Portal
The new objects in Portal are used to increase the difficulty of the Test Chambers as the story progresses.
 * Portals - The core mecanic of the game, the "worm holes" used to complete the test chambers. Introduced in the Relaxation Vault.
 * Heavy Duty Super-Colliding Super Button - Can be pressed by the player or held with a cube, the button acts like a switch, turning on and off different things (opening doors for instance). Introduced in Test Chamber 00.
 * Vital Apparatus Vent - The air vent delivering the cubes into the chambers. Introduced in Test Chamber 00.
 * Cube - A multipurpose object used to press buttons, block unwanted forces, or to stand upon. (Weighted Storage Cube introduced in Test Chamber 00 & Weighted Companion a special cube introduced in Test Chamber 17)
 * Material Emancipation Grill - A grid put at the end of test chambers used to stop players from getting objects out of the chamber. Introduced in Test Chamber 00
 * Victory Lift - A vertical variant of the Unstationary Scaffold that automatically rises if a player is upon it, and descends if unoccupied. Introduced in A chapter (Find out which.)
 * High Energy Pellet - An energy ball that needs to be put in its receptacle to power other objects. Introduced in Test Chamber 06.
 * Unstationary Scaffold - A platform used for transportation along a rail. Introduced in Test Chamber 06.
 * Turrets - Military grade turrets used for area denial. They fire bullets at players that enter their field of view. Introduced in Test Chamber 16.

Portal 2
In Portal 2, the new objects are there to diversify the gaming experience (diversifying the test chambers and the way of soving them) and change your perception of the chamber more than increase the difficulty.
 * Aerial Faith Plate
 * Thermal Discouragement Beam
 * Cube (Edgeless Safety & Discouragement Redirection)
 * Hard Light Bridge
 * Gels (Propulsion, Repulsion & Conversion)
 * Excursion Funnel
 * Edgeless Safety Cube Receptacle