Earth Science Intro Unit States of Matter Earth Science Intro Unit

What are the states of Matter? I will be able to define and describe matter and the three states of matter. What are the states of Matter? Matter All matter is made of atoms. Atoms in constant motion. Particle movement determines the state of matter. States of Matter. Solid Liquid Gas

What are the states of Matter? I will be able to define and describe matter and the three states of matter. What are the states of Matter? Solids Shape: Definite Volume: Atoms: Very close together. Vibrate in place. Exception: Water, ice has more space between atoms than liquid water.

What are the states of Matter? I will be able to define and describe matter and the three states of matter. What are the states of Matter? Liquids Shape: Not definite Volume: Definite Atoms: Further apart Move, have more kinetic energy.

What are the states of Matter? I will be able to define and describe matter and the three states of matter. What are the states of Matter? Gases Shape: Not definite Volume: Not Definite Atoms: Moving very fast. Most kinetic energy. Move faster when heat is applied. Move slower when heat is taken away.

What is a change in State? I will be able to explain what a change in state is and describe how matter changes state. What is a change in State? Changes in States A change of a substance from one physical state to another. Examples: Water vapor to liquid water. Liquid water to ice.

What is a change in State? I will be able to explain what a change in state is and describe how matter changes state. What is a change in State? Energy Gained or Lost To change state, energy must be added or removed. Gaining or losing energy changes the temperature of a substance.

What happens to matter when a change of state occurs? I will be able to explain what a change in state is and describe how matter changes state. What happens to matter when a change of state occurs? Energy / Motion of Particles. Energy of the particles change. The speed and the distance between particles change.

What happens to matter when a change of state occurs? I will be able to explain what a change in state is and describe how matter changes state. What happens to matter when a change of state occurs? Energy / Motion of Particles. Solids Vibrate in place, particles close together

What happens to matter when a change of state occurs? I will be able to explain what a change in state is and describe how matter changes state. What happens to matter when a change of state occurs? Energy / Motion of Particles. Liquids Move around Particles further apart.

What happens to matter when a change of state occurs? I will be able to explain what a change in state is and describe how matter changes state. What happens to matter when a change of state occurs? Energy / Motion of Particles. Gas- Move quickly Particles very far apart.

What is a change in State? I will be able to explain what a change in state is and describe how matter changes state. What is a change in State? Melting Solid becomes liquid. Energy is added Particles speed up. Temperature rises Melting point Temperature at which a substance changes from a solid to a liquid.

What is a change in State? I will be able to explain what a change in state is and describe how matter changes state. What is a change in State? Vaporization Process by which liquids or solids change to a gas.

What is a change in State? I will be able to explain what a change in state is and describe how matter changes state. What is a change in State? Sublimation Change in state from a solid directly into a gas. (skips liquid phase) Add heat Atoms gain energy Escape into the air as a gas. Example: Dry Ice

What is a change in State? I will be able to explain what a change in state is and describe how matter changes state. What is a change in State? Evaporation Add heat to a liquid Atoms gain energy. Move faster Particles can escape from the surface of a liquid if enough heat is added.

What is a change in State? I will be able to explain what a change in state is and describe how matter changes state. What is a change in State? Not in notes, write in the space in the far left box at the bottom. Boiling A rapid change from a liquid to a gas (vapor) Boiling Point The temperature at which this occurs in a liquid. 100°C 212°F

What is a change in State? I will be able to explain what a change in state is and describe how matter changes state. What is a change in State? Condensation The change in state from a gas to a liquid. Cooling a gas Particles lose energy.

What is a change in State? I will be able to explain what a change in state is and describe how matter changes state. What is a change in State? Deposition Change in state from a gas directly to a solid. Substance cools. Atoms lose energy No liquid forms in the process. Example: Water vapor turns into ice crystals.

What is a change in State? I will be able to explain what a change in state is and describe how matter changes state. What is a change in State? Freezing Liquid becomes solid. Loss of energy. Particles slow down Temperature cools Freezing point Temperature at which a substance changes into a solid. Water = 0C or 32F

What happens to matter when a change of state occurs? I will be able to explain what a change in state is and describe how matter changes state. What happens to matter when a change of state occurs? Mass is Conserved The amount of matter stays the same during a phase change. The mass does not change when its state changes. Each state constrains the same amount of matter.

What happens to matter when a change of state occurs? I will be able to explain what a change in state is and describe how matter changes state. What happens to matter when a change of state occurs? Mass is Conserved