2OverviewIn this powerpoint you will be introduced to three states of matter and you will explore the similarities and differences between these states.
3Vanishing ActPour rubbing alcohol into a small plastic cup until the alcohol just covers the bottom of the cupMoisten the tip of a cotton swab by dipping it into the alcohol in the cup.Rub the cotton swab on the palm of your hand. Make sure there are no cuts or abrasions on your hands.Record your observations.
4“Vanishing Act” Analysis 1.) Explain what happened to the alcohol after you rubbed the swab on your hand.2.) Did you feel a sensation of hot or cold? If so, how do you explain what you observed?
5States of MatterStates of Matter: the physical forms in which a substance can exist.Ex. Water commonly exists in three states of matter: solid (ice), liquid (water), and gas (steam)Define the term “states of matter”What are the four states of matter.
6Particles of MatterMatter is made up of tiny particles called “atoms” and “molecules.”They are too small to see without a microscopeThey are always in motion and bumping in to one another.Because they bump into each other, they are always interacting.The way they interact with one another determines the state of matter they become.What is matter made up of?True or False, particles are large enough to see with the human eyeWhat determines the state of matter atoms and molecules become?
7Particles of a SOLIDParticles of a solid do not move fast enough to overcome the strong attraction between them. So, they are close together and vibrate in place.How are the particles arranged in a solid?
8Particles of a LIQUIDParticles of a liquid move fast enough to overcome some of the attraction between them. The particles are close together but can slide past one another.How are the particles arranged in a liquid?
9Particles of a GASParticles of a gas move fast enough to overcome almost all of the attraction between them. The particles are far apart and move independently of one another.How are the particles of a gas arranged?
10SolidsSolid: the state of matter that has a definite shape and volume.Particles stay close togetherThe attraction between them is stronger than the attraction between the particles of the same substance in the liquid or gaseous stateThe particles move but not fast enough to overcome their attraction with each other.Each particle vibrates in place so they actually become locked in place by the particles around themselvesDefine the word solid.True or false: In a solid, Each particle vibrates in place so they actually become locked in place by the particles around themselves.
11Two Kinds of SolidsCrystalline solids: have a very orderly, three dimensional arrangement of particles.Particles are in a repeating pattern of rows.Ex. Iron, diamond, iceAmorphous solids: made of particles that do not have a special arrangement.Each particle is in one place but not in any particular pattern.Ex. Glass, rubber, waxWhat are the two kinds of solids?What is the difference between Crystalline solids and Amorphous solids?What is an example of a crystalline solid?What is an example of an Amorphous solid?
12LiquidsLiquid: the state of matter that has a definite volume but takes the shape of its container.Particles in liquids move fast enough to overcome some of the attractions between them.Particles slide past each other until they take the shape of their container.Although liquids change shape, they do not easily change volume. Ex. 50ml of water will take up the same space in a graduated cylinder as it would in a beaker.Define Liquid.True or False: Liquids don’t change shape but easily change volume.
13Liquid Characteristics Surface tension: a force that acts on the particles at the surface of a liquid.Causes some liquids to bead upDifferent liquids have different surface tensionViscosity: a liquid’s resistance to flow.The stronger the attraction of particles, the more viscous the liquid is.Define Surface TensionDefine VisocityWhat lab showed visocity?What lab showed surface tension?
14GasesGas: is the state of matter that has no definite shape or volume.Particles move quickly so they can break away from one another.There is less attraction between particles of a gas than between particles of the same substance in the solid or liquid state.The amount of empty space between gas particles can change. Ex. Helium in a tank compared with helium in a balloon.Define the term Gas:True or false, the amount of empty space between gas particles can’t change.