You need to measure mass. It is on the ground. to measure it, you have to pick it up to use a man made scale to measure that mass.
So tell me what force is on that mass to allow this measurement. There must be a force on it. If it's what I think you're going to say, then explain how and why this happens.
Gravity is a concept of the spatial and temporal distortion of spacetime due to the accumulation of energy at a certain location. The energy repulses, in a sense, the aether, or spacetime, around it and creates a dip that we have created a standard for and are now able to measure. Sure, newtons and weight are made-up figures and values to describe this, but we created a standard to measure from and this makes gravity and weight work.
Easier way to understand this concept for anyone who was confused: Get a big bed sheet and stretch it taut. Then give it just a little bit of slack so it can bend. Drop a ball on it. You will observe that the ball, where it settles, will leave an indentation. This is gravity if the ball were a ball of energy. 
It all sounds comfortable. 
So space is a bed sheet with a dent in it that Earth sits in due to it denting it. Any kindergarten kid should understand this, right?
Space is a blanket. It dents, kids. It dents because big ball dent it and fall into it. Space is scattered particles of matter, kids. Just randon particles whizzing about but it's a blanket still and dents. Later we can call this ,warps but dents is enough for now, kids, until you're old enough for the rest of the absolute utter disgraceful bullshit that comes your way about this nonsense. 
The blanket example is just a 2D visual representation of gravity, he is trying to explain it to you as if you were 8, and that level of explenation does not include the mathematics involved.
Physics can be quite complicated, so don't expect an all inclusive complete explenation if you can't even appreciate math or understand basic elementary school level physics.
Oh, ok, then what is the real explanation if it's not an invisible blanket in a virtual matterless space that somehow warps or bends or dents or whatever.
Physics isn't complicated, only fantasy physics is complicated for good reason. It helps to keep the bullshit up and it keeps people from finding out the truth because they don't know what the hell they are dealing with, except to be told about the magic and accepting it unconditionally like the sheep that they are.
You people display basic elementary school naivety. It's as sad as hell because adults should not display this, only kids should.
No wonder those at the top can feed us with any crap and make us do anything by the stamp of a foot to gain a frenzy.
It's funny and sickening at the same time.
There are other forces that are like gravity but at a smaller scale, and one of them is the electromagnetic force that causes you to not fall through the floor and there is also magnetism that cannot be explained.
The blanket analogy for gravity is great when it comes to visualizing gravity fields, but it's really just kind of a 3D graph and it does not actually look like that. The more complex way of describing gravity is with this equasion:
F=(MmG)/d
2But that still does not tell you
why gravity happens, but that's just something that nobody knows. If most of physics is a conspiracy then why is there no explenation for gravity, you would think that they would make up an explenation if it was all a lie, and if science
did have every answer that would actually be more suspicious.