Solids cannot flow because their particles are only able to vibrate and cannot move from place to place. Liquids Liquids can flow because their particles can move over each other. When water is poured into a glass, the particles of water move over each other and into the corners of the glass.
http://www.bbc.co.uk/bitesize/ks3/science/chemical_material_behaviour/particle_model/revision/5/
All fluids have the capacity to flow. Solids do not have this characteristic, therefore they are not fluids. Ex: flour does not flow when poured, instead it forms a heap. Ex: Sand does not flow when poured, it forms a pile.
http://jsterle.weebly.com/uploads/1/2/8/3/12834092/7_fluids_reading_answers.pptx
Flowing. Liquids and gases do not have a fixed shape. They can flow and fill their containers, but solids cannot. The particle model explains why. Solids. Solids cannot flow because their particles are only able to vibrate and cannot move from place to place. Liquids. Liquids can flow because their particles can move over each other. When water is poured into a glass, the particles of water move over each other and into the corners of the glass. The particles keep on moving over each other as the water takes the shape of the glass. The animation shows how this works.
http://www.bbc.co.uk/bitesize/ks3/science/chemical_material_behaviour/particle_model/revision/5/
For example, a single boulder rolling down a hill is not acting like a liquid; but thousands of rocks, boulders and dirt particles flowing down a hill during a landslide do behave like a liquid. When granular materials flow like a liquid, it's called granular flow.
https://www.scientificamerican.com/article/bring-science-home-candy-flow/
Gases: particles are spaced far apart so that they may move freely past one another. Particles of a solid, liquid and gas. 7) Using particle theory, explain why liquids and gases can flow and solids can’t. The particles are liquids and gases can move independently and therefore may move past one another, or flow.
http://jsterle.weebly.com/uploads/1/2/8/3/12834092/7_fluids_reading_answers.pptx
Gases can flow because their particles can move in all directions. When a Bunsen burner is connected to a gas tap and turned on, natural gas flows through the rubber tubing. The particles of natural gas are free to move anywhere inside the tubing, and pressure forces them through the tubing into the Bunsen burner.
http://www.bbc.co.uk/bitesize/ks3/science/chemical_material_behaviour/particle_model/revision/5/
Liquids Solids Size Density. Introduction Have you ever poured sand out of a bucket or cereal out of a box and noticed it seems to flow' a lot like water? This is because both sand and cereal are granular materials. That means they're made up of solid particles, but they can actually flow like liquids! Candies such as Skittles, M&M's, Nerds and many others are also granular materials. In this science activity you'll investigate how the size and shape of granular materials affect how they flow. And what better way to do this investigation than with some sweets!
https://www.scientificamerican.com/article/bring-science-home-candy-flow/
Liquids and solids are incompressible because their particles are already so close together that they may not be brought any closer, even with a large amount of pressure. 17) Give an example of how compressed air is used.
http://jsterle.weebly.com/uploads/1/2/8/3/12834092/7_fluids_reading_answers.pptx
7) Using particle theory, explain why liquids and gases can flow and solids can’t. Solids cannot flow because their particles are held so tightly together that they cannot move freely past one another (cannot flow) The particles are liquids and gases can move independently and therefore may move past one another, or flow.
http://jsterle.weebly.com/uploads/1/2/8/3/12834092/7_fluids_reading_answers.pptx
1) Why is a solid not considered a fluid? All fluids have the capacity to flow. Solids do not have this characteristic, therefore they are not fluids. Ex: flour does not flow when poured, instead it forms a heap. Ex: Sand does not flow when poured, it forms a pile
http://jsterle.weebly.com/uploads/1/2/8/3/12834092/7_fluids_reading_answers.pptx
why do liquids flow but solids do not
Solids cannot flow because their particles are only able to vibrate and cannot move from place to place and  Liquids can flow because their particles can move over each other. Solids cannot flow because their particles are only able to vibrate and cannot move from place to place, but liquids can flow because their particles can move over each other. Solids cannot flow because their particles are only able to vibrate and cannot move from place to place. Liquids can flow because their particles can move over each other.