Presentation on theme: "Introduction to Physical Science"— Presentation transcript:
1Introduction to Physical Science Mrs. StrattonPre-AssessmentBuild a ScaleGraphingLab IntroductionUsing Grad. Cyl.Scientific MethodUncert, of Meas.Metric ResearchBubble LabMetric SystemPrefix / Suffix
2Pre-Assessment Convert the following measurements: 25 m = _____ cm MAINPre-AssessmentConvert the following measurements:25 m = _____ cm20 ml = _____ L5 kg = _____ mg10 mm= _____ mFill in the blanks with the appropriate word:A(n) ____ is the equipment in the lab used to find mass.A(n)____ is a proposed solution to a scientific problem.A(n)____ is the factor being tested in an experiment.The ____axis on a graph represents the dependant variable.
3Lab Safety 1. Safety goggles 2. Shoes 3. Conduct only assigned experiments4. eyewash5. emergency shower,6. No gum, food, drink7. Wash your hands . . .
4Lab Safety 8. Read all of the directions 9. Notify your teacher about spills or breakage10. Report all accidents11. Pin or tie back long hair12. Add acids to water13. Test tube mouth away from people when heating.14. Leave you work area clean
10Scientific Method D. Variables and Experiments MAINScientific Method D. Variables and ExperimentsVariableDependant variableIndependent variableControlDataQualitativeQuantitative
11Bubbles Inquiry Lab Adapted from Section 1 Bubbles Inquiry Lab Adapted from Section 1.3 Mini-lab: Addison-Wesley Chemistry, 2003.Hypothesis:Bubble making can be affected by adding chemicals to a bubble blowing mixture.Prediction:
12Bubbles Inquiry Lab Procedure: Write a procedure that will allow you to test the hypothesis. Be sure to have replicates of your experimental design (example, use five cups for each treatment). Procedures should be given to the teacher for critique and changed if needed.Possible Materials:plastic cups, graduated cylinders, measuring scoops, water, de-chlorinated water, dish detergent, sugar, salt, vinegar, oil, straws, spoons
13Bubbles Inquiry Lab Observations: Make a Table in which to record your observations. Every groups table will be different because it depends on your procedure.
14Bubbles Lab Conclusions: MAINBubbles LabConclusions:Did you observe any differences in your containers?Propose a more specific hypothesis based on bubble making and design an experiment to test your hypothesis. For this experiment, find a way to collect quantitative data.Turn procedures in to the teacher then make changes as needed.
15Graphing Rules 2 types of graphs: MAINGraphing Rules2 types of graphs:line graphs: continuous databar graphs: non-continuous dataGraphs have a horizontal axis (X)-independent variableGraphs have a vertical axis (Y) - dependant variableClearly label both axesMark off units for each axis and list unitsTitle the graph at the top (describe the subject of the graph)If you plot more than one line on the graph, use distinctive marks or color to identify each line and add a legendGraphing PracticeGraphing Review
16Graphing Practice What is the mass of 10 mL of liquid A? What is the Volume of 10 g of Liquid A?
17MAINGraphing PracticeWhich liquid has the greatest mass for 10 mL of volume?Which of the liquids has a density of 1 g per 1 mL?
19Use the graph to answer each of the following questions. Graphing ReviewUse the graph to answer each of the following questions.Which variable, time or temperature, is the independent variable on this graph? Explain.At time 35 s, what is the temperature of (a) the water and (b) the ethyl alcohol?How long must the water be heated to raise its temperature to (a) 19.3°C? to (b) 20.0°C?
20Graphing Review (cont) MAINGraphing Review (cont)Use the graph to answer each of the following questions.If the water and the alcohol continue to be heated simultaneously, will they ever reach the same temperature?' Explain your answer in terms of the trend you see on the graph.Does the temperature of the ethyl alcohol increase at a steady rate as it is heated? Use examples from the graph.
21Uncertainty of Measuring Techniques Prediction:Materials:Station 1: meter stickStation 2: metric ruler, regular objectStation 3: graduated cylinder, beaker with liquidStation 4: balance, small pebbleStation 5: graduated cylinder, beaker of water,irregular objectStation 6: thermometer, beaker with ice and water,paper towel
22Uncertainty of Measuring Techniques Observations:Record your measurements in table form. Put class data on the board.Station123456Measurement
23Uncertainty of Measuring Techniques MAINUncertainty of Measuring TechniquesConclusions:Do all the class measurements have the same value for each station? Why?Which station had the most similar measurements? Why were they so similar?Which station had the most varied measurements? Why were they so different?
2625 m = ____ cm 25 m = ____ km 15 cm = ____ mm 15 cm = ____ dm METRIC CONVERSIONS25 m = ____ cm25 m = ____ km15 cm = ____ mm15 cm = ____ dm
2725 m = ____ cm 25 m = ____ km 15 cm = ____ mm 15 cm = ____ dm 2500 cm METRIC CONVERSIONS25 m = ____ cm25 m = ____ km15 cm = ____ mm15 cm = ____ dm2500 cm0.025 km150 mm0.015 dm
28Scientific Measurement - Assignment Ancient units of measurementFind five ancient units of measurement and give their modern equivalentsList sources
29Homework 100 m = _____ km 100 m = _____ mm 5 km = ______ m MAINHomework100 m = _____ km100 m = _____ mm5 km = ______ m5 km = ______ cm8 dm = ______ km40 mm = _____ cm2000 cm = ____ m
30Homework 100 m = _____ km 0.1 km 100 m = _____ mm 100,000 mm MAINHomework100 m = _____ km100 m = _____ mm5 km = ______ m5 km = ______ cm8 dm = ______ km40 mm = _____ cm2000 cm = ____ m0.1 km100,000 mm5,000 m500,000 cm0.08 km4 cm20 m
32CHALLENGEto build a spring balance to find the unknown mass of an object.
33Materials 3 ounce paper cup, four paper clips large elastic rubber bandmetric ruler2 metal washers,toothpick
34ProcedureWrite a procedure to complete the challenge. Turn in procedure to your teacher and make changes as needed.Design a results table for the data you will collect.Graph your data.
35Conclusion Mass (in pennies) of Unknown Object A MAINConclusionMass (in pennies) of Unknown Object AMass (in pennies) of Unknown Object B
36Measuring Liquid Volume with the Graduated Cylinder Prediction:Materials:red, blue, and yellow watertest tube standwater50-ml graduated cylinder3 small beakers6 test tubes
37Measuring Liquid Volume with the Graduated Cylinder Procedure:Design a procedure as you use the materials given to make six test tubes with colors in the following order: Blue, Green, Yellow, Orange, Red, Purple. Each tube should contain the exact same amount of liquid.As you make your colors, record exact measurements so another group can replicate your results.The teacher will photograph your results.
38Measuring Liquid Volume with the Graduated Cylinder Procedure (cont):Trade procedures with another group, follow their procedure and have the teacher photograph your tubes when you finish.Compare the pictures from your procedure when you followed it and when another group followed it..
39Measuring Liquid Volume with the Graduated Cylinder MAINMeasuring Liquid Volume with the Graduated CylinderObservations:Describe differences and similarities between the two sets.Conclusion:Give possible reasons for any discrepancies and list ways to improve your procedure writing to make replication work better.
40METRIC RESEARCHInstructions: Use the internet or other reference material to find the following measurements. List your sources.Length of a football field in metersLength of the Golden Gate Bridge in metersDistance to the sun in kilometersDistance light travels in one year, which is called a light-year, in kilometers
41METRIC RESEARCH (cont) MAINMETRIC RESEARCH (cont)Average mass of a mouse in gramsMass of Wright brothers’ plane in kilogramsHottest Temperature ever recorded on the earth in degrees CelsiusColdest Temperature ever recorded on the earth in degrees Celsius
42Complete these Measurements in centimeters Your heightYour arm lengthBook heightDesk top lengthDesk top widthConstruct a table for these measurements
43Measurement TablemmcmmKmHeightArmBookDesk LDesk W
44Prefixes / Suffixes Adapted from Prentice Hall Chap 1 Activity MeaningAnti-AgainstAtmo-VaporChromo-ColorCon-TogetherDi-DoubleEndo-WithinExo-OutsideHetero-DifferentHomo-SameHydro-WaterSelect three science words that have a prefix listed on the chart
45Prefixes / Suffixes Adapted from Prentice Hall Chap 1 Activity MeaningIn-InsideInter-BetweenIso-EqualMacro-LargeMicro-SmallPhoto-LightSub-UnderSyn-TogetherTele-DistantTrans-AcrossSelect three more science words that have a prefix listed on this chart
46Prefixes / Suffixes Adapted from Prentice Hall Chap 1 Activity Meaning-ationThe act of-escentBecoming-graphyDescription of-logyStudy of-meterDevice for measuring-scopeInstrument for seeing-sphereRound-stasisStationary condition-thermHeat-vergeTurnSelect three science words that have a suffix listed on this chart
47Prefixes / Suffixes Adapted from Prentice Hall Chap 1 Activity MAINPrefixes / Suffixes Adapted from Prentice Hall Chap 1 ActivityWrite a paragraph using the nine words you have chosen. Be prepared to read your paragraph aloud.