Hello @Adi_Lubos, Welcome to the MongoDB Community forum!
The weak entity relationship is a one-to-many (in this case). The way to model this is with Embedded Documents as an array field.
method:
{
id: 1234,
description: 'Data Modeling Exercise',
experiments: [
{ id: 1, name: 'Build relationships' },
{ id: 2, name: 'Draw diagrams' },
...
]
}
Reference: