Test Chamber 06 combines the Weighted Storage Cube with Energy Pellets. You'll need to use a cube to hold down a button, which in turn might activate a pellet dispenser or open a path for the pellet. First, identify where the Energy Pellet needs to go and where the cube needs to be placed. Use your portals to retrieve the Weighted Storage Cube and place it on the designated button. This will often activate the Energy Pellet dispenser. Once the pellet is active, use your portals to guide it into its receiver. You might need to quickly reposition portals to catch the pellet as it travels. The timing can be a bit tricky, so be prepared to reset and try again. Successfully activating the receiver will open the exit.
