< Previous© Copyright NewPath Learning. All Rights Reserved. 94-4368Visit www.newpathlearning.com for Online Learning Resources.Pause & ReviewMeasure mass and volume. Measuring Mass & Volume1 gram1 gram1 gram1 gram1 gram901008070601020304050901008070601020304050mLmLWhat is the mass of this marshmallow? ________________________What is the volume of this rock? ________________________How did you calculate it? _________________________________________________© Copyright NewPath Learning. All Rights Reserved. 94-4370Visit www.newpathlearning.com for Online Learning Resources.Measuring TemperatureTemperature is a measure of the hotness or coldness of an object. A thermometer is used to measure temperature in the metric unit degree Celsius (ºC). A thermometer shows the temperature by the up or down movement of a colored liquid inside the thermometer. Temperature & Magnetismmetal objectsAs an object heats up, the liquid inside the thermometer moves up showing a higher temperature. As an object cools, the liquid inside the thermometer moves down showing a lower temperature. Attraction to MagnetsAttraction to magnets is also a physical property of matter. Certain objects that contain the metal iron are attracted to magnets. Such objects are magnetic. They include keys, metal paper clips, and iron nails. Magnets do not attract non-magnetic objects made of plastic, wood, or paper.© Copyright NewPath Learning. All Rights Reserved. 94-4370Visit www.newpathlearning.com for Online Learning Resources.Pause & ReviewWhich of these items will be attracted to the magnet? Draw a line from the magnet to the items that will be attracted. Cross out the items that will not be attracted.44Temperature & MagnetismRead the thermometers and record the temperatures._____________ ºC_____________ ºCStates of Matter© Copyright NewPath Learning. All Rights Reserved. 94-4371Visit www.newpathlearning.com for Online Learning Resources.The three states of matter are liquid, solid, and gas. Matter can change from one state to another through a change in temperature.Solids, Liquids & GasesSolids keep their shape and always take up the same amount of space. Liquids can flow and change their shape depending on the container they are in. Gases, on the other hand, are often invisible and change their volume and shape to fill up the container they are in.State Changes in WaterLiquid to IceWhen liquid water cools to 0ºC, it changes to solid water, called ice. Condensation - Gas to LiquidCondensation is the opposite of evaporation. It takes place when water vapor (gas) cools and changes from vapor to liquid. If you’ve ever left a cold drink outside on a hot summer day, then you’ve already seen condensation. As the water vapor in the warm air touches the cold surface of the glass, it cools forming water droplets (liquid) on the glass.Liquid to Water Vapor When liquid water heats to 100ºC, it boils and changes to water vapor. This process is called evaporation. Regardless of its state, it is still water.C250 ml506070809010040302010HELIUMwater vaporsolid icechange shape to fit containerkeep their shapeSolidSliquidSGaSeSchange volume to fill containerwater moleculesgas(water vaporin the air)liquidwater droplets© Copyright NewPath Learning. All Rights Reserved. 94-4371Visit www.newpathlearning.com for Online Learning Resources.Pause & ReviewSort the items into solids, liquids and gases. Write the name of the item under each category. Solids____________________________________________________________________________________________________Liquids____________________________________________________________________________________________________Gases____________________________________________________________________________________________________HELIUMStates of MatterChanges in Matter© Copyright NewPath Learning. All Rights Reserved. 94-4372Visit www.newpathlearning.com for Online Learning Resources.Physical Changes to Matter A physical change to matter happens when matter changes size, shape, or form, but does not change the type of matter it is. For example, let’s say you cut a piece of paper into smaller pieces. The original piece of paper has undergone a physical change; it has changed both shape and size, yet, it is still paper.Chemical Changes to Matter Chemical changes to matter happen when one type of matter changes into another type of matter. For example, the matter that you start with in a campfire is wood. As the wood burns, it undergoes a chemical change – turning into gases and ashes. woodpaperpapersmoke (gases)ashesMetal rusting is another example of a chemical change.© Copyright NewPath Learning. All Rights Reserved. 94-4372Visit www.newpathlearning.com for Online Learning Resources.Pause & ReviewSort the changes into two categories, either a physical change or a chemical change. Draw a line to the type of change.Changes in MatterChemicalChangePhysicalChangeMixtures & Solutions© Copyright NewPath Learning. All Rights Reserved. 94-4373Visit www.newpathlearning.com for Online Learning Resources.MixturesA mixture is a combination of two or more kinds of matter. Each kind of matter doesn’t change in the mixture and keeps its own properties. An example of a mixture is a fruit salad with berries, watermelon pieces, and banana slices. The fruit is mixed together, but the berries, watermelon, and banana haven’t changed into new kinds of fruit. Mixtures can be separated.Solutions A solution is a type of mixture in which matter is evenly mixed or combined. Lemonade is an example of a solution. It is a mixture of water, lemon juice, and sugar combined evenly into a drink. Once the parts of lemonade are combined together, they cannot be easily separated. This is one main difference between a mixture and a solution.PureCaneSUGARSUGARfruit mixturefruit separated© Copyright NewPath Learning. All Rights Reserved. 94-4373Visit www.newpathlearning.com for Online Learning Resources.Pause & ReviewSort the examples into two categories, either a solution or a mixture. Draw a line to the category.MixtureSolutionFruit PunchMixtures & SolutionsSolidsLiquidsGasesThe particles that make up a solid are packed very closely together in a set position. This closely held arrangement of particles provides a solid material with a definite shape and volume. Solids are either amorphous or crystalline. The particles of amorphous solids such as butter, are not arranged in a regular pattern; whereas, the particles of crystalline solids such as salt or sugar, are arranged in a regular pattern. The particles in a liquid are packed close together but are free to move allowing liquids to flow. This particle arrangement gives liquids volume but not a definite shape. Liquids take the shape of the container that it’s poured into.Gases like liquids are fluids. However, a gas does not have a definite shape or definite volume. Particles of a gas can be squeezed together or spread apart in a container filling all the space available. The atoms and molecules of a gas spread equally throughout and fill a container of any size and shape.50100150200250300506070809010040302010particle viewof a solidparticle viewof a liquidamorphoussolidliquidliquidsolidgasgassoliddry icecarbon dioxidegasevaporationboilingparticle viewof a gascrystallinesolid© Copyright NewPath Learning. All Rights Reserved. 94-4609www.newpathlearning.comChanges of StateSolid to LiquidMelting is the change in state from a solid to a liquid which takes place at a specific temperature, called the melting point. At its melting point, the particles of a solid vibrate so fast that they break free from their closely packed arrangement. Freezing is the reverse process of melting. At its freezing point, the particles of a liquid slow down and form regular patterns.Liquid to GasChanges that take place between the liquid and gas phases include evaporation, boiling and condensation. •Evaporation of a liquid takes placewhen the particles in a liquid gainenough heat energy to form a gas. •Boiling takes place when a liquidchanges to a gas just below andabove its surface. •Condensation is the opposite ofvaporization. It occurs when theparticles in a gas lose enoughheat energy to form a liquid.Solid to GasDuring sublimation, particles of a solid bypass the liquid state and form a gas. An example of this is when dry ice (solid carbon dioxide) changes directly into a gas.QuartzOrangeSolids, Liquids & GasesNext >