Go Wild! with Our Central PA Zoo Activities. For over 50 years, Lake Tobias Wildlife Park has been providing entertainment and education to the families of central Pennsylvania. We offer a wide variety of activities for our visitors, all centered around engaging encounters with our exotic animals.
Phase changes happen when you reach certain special points. Sometimes a liquid wants to become a solid. Scientists use something called a freezing point or melting point to measure the temperature at which a liquid turns into a solid. There are physical effects that can change the melting point. Pressure is one of those effects.
Summary: 1.A solid is a state of matter that has a definite shape and volume while a liquid is a state of matter that has volume but no definite shape. 2.A liquid takes the shape of the container that holds it while a solid has a shape of its own.