Final answer:
Temperature and pressure heavily influence a substance's state of matter. When solids are heated or liquids are cooled, or pressure is exerted, they can change into other states of matter, such as liquids, gases, or solids respectively.
Step-by-step explanation:
Changes in temperature and pressure can significantly affect the state of matter such as solids, liquids, and gases. For instance, when you heat a solid like ice, its molecules gain energy and move faster, causing the solid to turn into a liquid (water) - a process known as melting. Conversely, when a gas is cooled or pressurized, its molecules slow down and are compressed, causing the gas to become a liquid or perhaps even a solid. To exemplify, when we chill or compress water vapor, it condenses to form liquid water or freezes to become ice. Therefore, different temperature and pressure conditions may alter substances into different states of matter.
Learn more about State of Matter