Tiny Lab

A 15-foot-square small house springs into existence around and above you and remains stationary for the duration. This house is covered by immobile dome of force. This house is a small lab with two rooms. One small meeting room has black board , a big meeting desk and 7 chairs. It also has some snacks but can not be treated as a meal. Another room is a small lab room with optical table, microscope, transfer stage and enough material for exfoliation and transfer. There are two windows in the meeting room. It is transparent from inside but not outside. Items disappear when taken outside the lab.
The spell ends if you leave the lab.
Seven creatures of medium size or smaller can fit inside the with you. The spell fails if its area includes a larger creature or more than nine creatures. Creatures and objects within the house when you cast this spell can move through the entrance door freely. All other creatures and objects are barred from passing through it. Spells and other magical effects can't extend through the lab or be cast through it. The atmosphere inside the space is comfortable and dry, regardless of the weather outside.
Until the spell ends, you can command the interior to become dimly lit or dark.