The physical state of substances can be solid, liquid, or gas, and matter can be changed from one state to another by temperature, pressure, or as a result of chemical change, etc.
In certain instances, yes. Gallium, for instance, has a melting point between room temperature and body temperature, so will melt in your hand... sort of like M&Ms in reverse.
When matter undergoes a physical change (like changes in the state of matter), the space between the particles in the matter and how the particles move change.
Well, for a solid, you would draw the particles close together and touching so that none of them could be moved around. For a gas you would draw them very spaced apart with none touching, and for a liquid you would draw them some where in the middle with some touching and some spaced out.
Heat energy is a measure of how fast particles of matter are vibrating. As more energy goes into the matter, the particles vibrate faster. At some point (it is different for each material) the particles move fast enough to change phase. When water boils, the particles change state from liquid to gas.
Liquid State
by applying pressure the particles of matter come and the intermolecular space between them shorten and they change their state from gas to liquid and the intermolecular space between the particles of liquid is more than that of gas.
When matter undergoes a physical change (like changes in the state of matter), the space between the particles in the matter and how the particles move change.
move faster and break free from other particles, entering the gas state.
move faster and break free from other particles, entering the gas state.
solid.
The change in the state of matter lead to the following being altered: - The strength of the inter-molecular forces - The positions and movements of the particles in the matter. - The kinetic energy contained by the particles. These are all I could come up with for now, feel free to add and edit!
Particles that make up matter are in a state of constant motion.
There are empty spaces between the particles of matter that are very large and that can be used to identify a substance because they never change.
By how dense the state of matter
Well, for a solid, you would draw the particles close together and touching so that none of them could be moved around. For a gas you would draw them very spaced apart with none touching, and for a liquid you would draw them some where in the middle with some touching and some spaced out.
The state of matter in which particles are loosely connected is gaseous state
In a solid the particles are close together and in fixed positions In a liquid the particles are still really close together but can move around past each other In a gas the particles are free to move and far apart During a state change the particles in the substance will change from being in one of the above to another
As the space changes between the particles, so does the state of matter.