Science- solids, liquids,gases
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45 terms
Terms | Definitions |
|---|---|
 shape or volume | The states of matter are defined by whether or not they hold their __ or __. |
| solid | A __ has a definite shape and a definite volume. |
| because the particles are packed tightly and stay in place | Why does a solid have a definite shape and definite volume? |
| motionless | Particles in a solid are not completely __. Instead, they vibrate. |
| slightly | Particles in a solid move back and forth __. |
| crystals | Many solids contain particles that form a regular, repeating pattern which form __. |
| crystalline solids | Solids that are made up of crystals are called __. |
| sugar and salt | Two examples crystalline solids are __ and __. |
| melting point | Crystalline solids melt at a specific temperature called its __. |
| amorphous | Solids whose particles are not arranged in regular patterns are called __solids. |
| plastics and rubbers | Two examples of amorphous solids are __ and __ |
| Amorphous | __ solids do not melt when heated, instead they become softer. |
| They get softer | What happens when amorphous solids are heated? |
| plastic | The word __ means "able to be molded into many shapes". |
| liquid | A __ has no definite shape but has a definite volume. It takes the shape of its container. |
| liquids | Particles in __ are packed closely, but are able to move freely |
| it means they can flow from place to place. | What does it mean when we say liquids are "fluid"? |
| viscosity | The resistance of a liquid to flow is called __. |
| slowly | Liquids with high viscosity flow __. |
| quickly | Liquids with low viscosity flow __ |
| syrup | An example of a liquid with high viscosity is __ |
| vinegar | An example of a liquid with low viscosity is __ |
| volcanic eruptions | The viscosity of lava helps in classifying ___ |
| gas | A __ takes the shape and volume of its container. |
| gas | __ particles spread apart and move at high speeds in all directions. |
| volume | __ is the amount of space matter fills. |
| the volume of its container | Because gases fill their containers, the volume of a gas is the same as__ . |
| temperature | __ is a measure of the average energy of motion of the particles of a substance. |
| The faster the particles are moving, the higher the temperature shown. | Why can it be said that a thermometer can be thought of as a speedometer for molecules? |
| is the force of its outward push divided by the area of the walls of the container | The pressure of a gas is the __ divided by __. |
| Force divided by area (f/a) | What is the formula for finding pressure? |
| firmness | The __ of an object inflated with gas comes from the pressure of the gas |
| high pressure to an area of low pressure | Gases flow from an area of __ to an area of __ |
| Robert Boyle | __ was an English scientist who did experiments with gases. |
| decreases | Robert Boyle found that when the pressure of a gas is increased, the volume of the gas __. |
| increase | Robert Boyle found out that when the pressure is decreased, the volume will __. |
| Boyle's law | The relationship between the pressure and volume of a gas is called __ |
| pressure | Boyle's law also applies in the opposite way - when the volume of a gas decreases, the __ will increase. |
| increases | When the temperature of a gas is increases, the pressure of the gas __. |
| decreases | When the temperature is decreased, the pressure __ |
| If the tires get hot, the pressure in the tire will increase. The tire could pop if pressure isn't released. | Why do truck drivers have to monitor and adjust tire pressure on long trips? |
| Jacques Charles | A French scientist named __ studied the relationship between the temperature and volume of a gas. |
| volume | Jacques Charles found that when the temperature of a gas increases, its __ increases. |
| temperature | Jacques Charles found that when the __ decreases, its volume decreases |
| Charles' Law | ___ states that when the temperature of a gas increases, its volume increases. When the temperature decreases, its volume decreases |
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