Council Rock School District / Overview



545547535626WORKSHEET 4 A00WORKSHEET 4 AName: _________________________________________Chapter 4 Worksheet PacketSection 1 Reading Guide (90-93)What is an element?True or false: An element is an example of a pure substance. __________What is a pure substance?Atoms, which are pure substances, are much to __________ for us to see.Each element has its own set of unique properties known as characteristic properties. List the different characteristic properties mentionedPhysical characteristic propertiesb. Chemical characteristic properties i. Ii. What are the three main categories of elements? Looking at Figure 4 on page 93, list some properties ofMetalsNonmetalsMetalloidsBy knowing the category to which an unfamiliar element belongs, you can ________ some of its properties.Let’s say you needed to make a shatter-proof container. Would you make it out of a metal, metalloid, or nonmetal? _________________________ Explain why in the space below.5374640-67310WORKSHEET 4 B00WORKSHEET 4 BSection 2 Reading Guide (pages 94-97) What is a compound?True or false: compounds result from physical combinations of elements. _________Elements join in a ____________ ratio according to their masses to form a compound.What happens if a sample of a compound has a mass ratio of hydrogen to oxygen that is not 1:8? It __________ be water.What are three physical properties used to identify compounds? Look at Figure 2 on page 95.Describe sodiumDescribe chlorineWould you consider either of those two elements to be safe? ____________Describe sodium chlorideWould you consider sodium chloride to be safe? ______________A compound has properties that _________ from those of the elements that form it.If a compound breaks down, what two things could it break down into?Compounds can only be broken down by (circle one) physical / chemical changes.What compound must be broken down to get aluminum? ____________________What use does aluminum have in industry?What elements must be combined to make ammonia? ____________ and _____________Why is ammonia used in industry?5494020-73025WORKSHEET 4 C00WORKSHEET 4 CPure Substances WorksheetLabel the following as an element, compound, or neitherPlace a “P” in the blank if the protery of a pure substance is physical, and place a “C” if it is a chemical property of a p0ure substanceCircle the items that you think are examples of pures substancesAluminumRaisin breadCarbon dioxideWaterSugar and waterSulfurSulfuric acidMercuryAn orangeWater and instant coffeeA pencilCarbon particles and sugarNitrogenAirGasolineRubbing alcohol5494020-120650WORKSHEET 4 D00WORKSHEET 4 DSection 3 Reading Guide (pages 98-105)What is a mixture?A mixture results from what type of change?PhysicalChemicalAll mixtures ares separated through physical means. Figure 3 on page 99 lists three different ways to separate mixtures. True or false: The components of a mixture need to mixed in a specific ratio. __________Add the information in to complete Table 1 on page 100.MixturesCompoundsMade of elements, compounds, or bothMade of elements___________ in original properties of components_______ in original properties of compoenentsSeparated by _________ meansSeparated by _________ meansFormed using ________ ratio of compoenentsFormed using a ______ ratio of componentsWhat is a solution?Solution have the same ____________________ and ________________ throughout the mixture.In solutions, the _______ is the substance that is dissolved, and the __________ is the substance that does the dissolving.5824220317500In the space to the right, I have a glass of powdered lemonade solution. Use dots to show how the lemonade powder would be dispersed in the solvent (water).5633720-377825WORKSHEET 4 D00WORKSHEET 4 DLooking at Table 2 on page 101, give an example of a gas dissolving in a gas _________________ and a solid dissolved in a solid _____________________.The particles in solutions are so ________ that they never settle out.Can solutes and solvents be separated by filtering in a solution? _____________Do solutions scatter light? ______What is concentration?If I added one drop of food dye to a glass of water, that would be a (circle one) dilute / concentrated solution. If I added one hundred drops of food dye to a glass of water, that would be a (circle one) dilute / concentrated solution.What is solubility?How does the solubility of gases change with temperature?Look at Figure 7 on page 103 and list the three different ways to get solids to dissolve faster in liquids What is a suspension?A suspension has (circle one) small / medium / large particles.True or false: A suspension can scatter light. ____________A suspension can b separated by passing it through a ____________.What is a colloid?Which of the following is not true about a colloid?They have properties between solutions and suspensionsThey can scatter lightThey can be separated by filtrationThey have medium-sized particles5572760-40005WORKSHEET 4 E00WORKSHEET 4 EElements, Compounds, and Mixtures(Modified from staff.)Elements, Compounds, and MixturesClassify each of the pictures below by placing the correct label in the blanks below:A= Element D= Mixture of compoundsB= Compound E= Mixture of elements and compoundsC= Mixture of elementsEach circle represents an atom and each different color represents a different kind ofatom. If two atoms are touching then they are bonded together.7879715-114935WORKSHEET 4 F00WORKSHEET 4 FElements, Compounds, Mixtures FlowchartUse the words at the bottom of the page to complete the flow chartMATTER Is broken into 2 major groups_____________ __________________________ are classified based on the size of the particles____________ are only made of one substance______________ are made of 2+ substances chemically combined__________ are the tiny building blocks_________________ is an exampleThe elements always combine in the ________ ratio The substances do not need to be in a ________ ratioA __________ is a mixture that appears to be a single substanceIn this, the __________ dissolves into the ___________________________ is an exampleFor this mixture, the particles are the ____________ and do not scatter light; they can't be filteredA __________ is a mixture where the particles settle out over time.A ___________ is a mixture in which the particles are dispersed but do not settle out______________ is an exampleFor this mixture, the particles are the ____________. They scatter light and they can be filtered.______________ is an exampleFor this mixture, the particles are ______ sized. They do scatter light, but they can't be filteredMATTER Is broken into 2 major groups_____________ __________________________ are classified based on the size of the particles____________ are only made of one substance______________ are made of 2+ substances chemically combined__________ are the tiny building blocks_________________ is an exampleThe elements always combine in the ________ ratio The substances do not need to be in a ________ ratioA __________ is a mixture that appears to be a single substanceIn this, the __________ dissolves into the ___________________________ is an exampleFor this mixture, the particles are the ____________ and do not scatter light; they can't be filteredA __________ is a mixture where the particles settle out over time.A ___________ is a mixture in which the particles are dispersed but do not settle out______________ is an exampleFor this mixture, the particles are the ____________. They scatter light and they can be filtered.______________ is an exampleFor this mixture, the particles are ______ sized. They do scatter light, but they can't be filteredATOMS CARBON DIOXIDE COLLOID COMPOUNDS DEFINITE ELEMENTS LARGEST MEDIUM MILK MIXTURES PURE SUBSTNACES SALT WATER SAME SMALLEST SNOW GLOBE SOLUTE SOLUTION SOLVENT SUSPENSION ................
................

In order to avoid copyright disputes, this page is only a partial summary.

Google Online Preview   Download