A liquid can generally be classified as matter that takes the form of its container, and are typically affected by gravity in the sense that they flow when presented with a downwards slope. As such, soil and sand are liquids, as they take the form of their containers, and will flow down a downward slope.
In order to further enforce my theory, I have created the "Prank Test". The way it works is by creating a hypothetical situation in which you were to throw said matter at an unsuspecting individual and test what happens to the matter when hitting said person.
The evidence of matter being a solid are as follows:
If you throw something at someone's face and it maintains its shape, caves the guy's skull in, or shatters into smaller pieces, it is a solid.
If you throw something at someone's face and it splashes, or gets them wet, it is a liquid.
If you throw something at someone's face and it dissipates before it hits the person, it's a gas. If you throw it and they die, it's nerve gas.
If you ARE the something being thrown at someone's face, you are Thaumiel.
In this case, if you were to throw soil or sand at someone, it would splash and either coat them in soil/sand (making them wet), or hit the floor (making the floor wet). Therefore soil and sand are liquids.
In order to further enforce my theory, I have created the "Prank Test". The way it works is by creating a hypothetical situation in which you were to throw said matter at an unsuspecting individual and test what happens to the matter when hitting said person.
The evidence of matter being a solid are as follows:
If you throw something at someone's face and it maintains its shape, caves the guy's skull in, or shatters into smaller pieces, it is a solid.
If you throw something at someone's face and it splashes, or gets them wet, it is a liquid.
If you throw something at someone's face and it dissipates before it hits the person, it's a gas. If you throw it and they die, it's nerve gas.
If you ARE the something being thrown at someone's face, you are Thaumiel.
In this case, if you were to throw soil or sand at someone, it would splash and either coat them in soil/sand (making them wet), or hit the floor (making the floor wet). Therefore soil and sand are liquids.