solids
Sand is made of small pieces of solid rock.
True. Solids have a definite shape and volume because their particles are closely packed and do not move freely past each other. This results in solids having a fixed shape and not flowing like liquids or gases.
Solids to Liquids (Melting) Liquids turning back into a Solid (Freezing) ((SCF))
That depends on the temperature. At normal Earth surface temperatures, sand is a solid. Heat it up and it becomes a liquid, heat if further and it will vaporize.
solids and liquids
Both liquids and Solids have definite volumes
Solids and liquids both have fixed volumes.
liquids
mixtures can be formed by physically putting two or more substances together. Mixtures can be formed between solids and liquids, solids and solids, liquids and liquids, solids and gas, liquids and gas, gas and gas
liquids don't have a particular form solids do and take up a shape liquids do not.
Solids changing to liquids are melting Liquids changing to solids are freezing Solids changing to gas are subliming Liquids changing to gas are boiling Gases changing to liquids are condensing.
some solids,liquids and gases are dangers some are not dangers