Presentation on theme: "Mary Tweedy, Curriculum Support Specialist"— Presentation transcript:
1What are some metric measurement tools that scientists use to make quantitative observations? Mary Tweedy, Curriculum Support SpecialistKeisha Kidd, Curriculum Support SpecialistMillard Lightburn, District SupervisorDepartment of Mathematics and ScienceOffice of Academics and Transformation
2Grade 5 Pacing Guide Topic 1: Practicing Science SC.5.N.1.1 Define a problem, use appropriate reference materials to support scientific understanding, plan and carry out scientific investigations of various types such as: systematic observations, experiments requiring the identification of variables, collecting and organizing data, interpreting data in charts, tables, and graphics, analyze information, make predictions, and defend conclusions. AASC.5.N.2.1 Recognize and explain that science is grounded in empirical observations that are testable; explaining must always be linked with evidence. AASC.5.N.2.2 Recognize and explain that when scientific investigations are carried out, the evidence produced by those investigations should be replicable by others. AASC.5.P.8.1 Compare and contrast the basic properties of solids, liquids, and gases, such as mass, volume, color, texture, and temperature.MACC.5.MD.1.2 Make a line plot to display a data set of measurements in fractions of a unit (1/2, 1/4, 1/8). Use operations on fractions for this grade to solve problems involving information presented in line plots. For example, given different measurements of liquid in identical beakers, find the amount of liquid each beaker would contain if the total amount in all the beakers were redistributed equally.
3What tools do scientists use to measure length or distance? ruler tape measure meter stick
4What is Length? Length- is the distance between two points. How long is the screw in centimeters?It is 5.1 centimeters.Remember to measure to the smallest place value the tool allows and use decimals.
5Click the image to watch a short video about the meter. Metric UnitskmmcmmmWhat are the metric units for measuring length or distance ?Units include the meter, centimeter and the millimeter.The basic unit of length in the metric system in the meter and is represented by a lowercase m.Metric Units1 Kilometer (km) = 1000 meters1 Meter = 100 Centimeters (cm)1 Meter = 1000 Millimeters (mm)Click the image to watch a short video about the meter.Explore and Explain: Click to show the video on measuring length in metrically.Which is longer?A. 1 meter or 105 centimetersB. 4 kilometers or 4400 metersC. 12 centimeters or 102 millimetersD millimeters or 1 meterAdapted from T. Trimpe 2008
61 centimeter = 10 millimeters Measuring LengthHow many millimeters are in 1 centimeter?1 centimeter = 10 millimetersWhat is the length of the line in centimeters? _______cmWhat is the length of the line in millimeters? _______mmWhat is the length of the line in centimeter? ________ HINT:Measure to the smallest place value the tool allows – use decimals.The line is 3.2 cm.Adapted from T. Trimpe 2008
7What tools do scientists use to measure volume? Measuring cupsGraduated cylindersBeakersMeasuring spoonsRulers or meter sticks or tape measures
8Click the image to watch a short video about volume. kLMetric UnitscLmLLWhat is volume?Volume is the amount of space an object takes up.The base unit of volume in the metric system in the liter and is represented by L or l.Metric Units1 liter (L) = 1000 milliliters (mL)1 milliliter (mL) = 1 cm3 (or cc) = 1 gram (with water)Click the image to watch a short video about volume.Which is larger?A. 1 liter or 1500 millilitersB. 200 milliliters or 1.2 liters/Adapted from T. Trimpe 2008
9Measuring VolumeGraduated cylinders are tools used to find the volume of liquids. Here’s how:Read the measurement based on the bottom of the meniscus or curve.* When using a real cylinder, make sure you are eye-level with the level of the water.What is the volume of water in the cylinder?43 mL*What causes the meniscus?The liquid in the graduated cylinder generally tends to stick to the sides of the cylinder. That is why for water and similar liquids we read the bottom.Adapted from T. Trimpe 2008
10Measuring Volume of Liquids What is the volume of liquid in each cylinder?CAB22.5mL52 mL37 mLAdapted from T. Trimpe 2008
11Measuring Volume of Solids What tool can be used to measure the volume of an object with the shape of a rectangular prism?We can measure using a ruler and the formula:length ___ x width ___ x height ___ = ______ cm310 cm9 cm8 cmWhat can be used to measure thevolume of irregular shaped object (rock) ?water displacement usinga graduated cylinderAmount of H2O with object = ______ About of H2O without object = ______ Difference = (rock) Volume = ______Adapted from T. Trimpe 2008
12What tools do scientists use to measure mass? Balance & gram piecesPan balance & gram piecesTriple Beam BalanceElectronic balance
13Metric Units g kg What is mass? Mass is the amount of matter in an object.The base unit of mass in the metric system in the gram and is represented by g.Metric Units1 Kilogram (km) = 1000 Grams (g)1 Gram (g) = 1000 Milligrams (mg)Click the image to watch a short video about mass.Which is larger?A. 1 kilogram or 1500 gramsB milligrams or 1 gramC. 12 milligrams or 12 kilogramsD. 4 kilograms or 4500 gramsAdapted from T. Trimpe 2008
14Measuring Mass – Triple-Beam Balance A triple-beam balance can be used to find the mass of various objects.1st – Place the object on the pan.2nd – Slide the large weight to the right until the arm drops below the line. Move the rider back one groove. Make sure it “locks” into place.3rd – Repeat this process with the top weight. When the arm moves below the line, back it up one groove.4th – Slide the small weight on the front beam until the lines match up.5th – Add the amounts on each beam to find the totalmass to the nearest tenth of a gram.Adapted from T. Trimpe 2008
15Measuring Mass – Triple-Beam Balance A triple-beam balance can be used to find the mass of various objects.The objects are placed on the pan and then you move the weights on the beams until you get the lines on the right-side of the scale to match up.Once you have it balanced , you add up the amounts on each beam to find the total mass.What would be the mass of the object measured in the picture?_______ + ______ + _______ = ________ gAdapted from T. Trimpe 2008
16What tools do scientists use to measure weight? Spring ScalePan Scale
17What is weight?Weight is the measure of the pull of gravity on an object.What units are used to measure weight?Newtons (N) and grams (g)
18How to use a spring scale Hold the spring scale in one hand so that the hook is hanging downward.Be sure that you hold it high enough so you can see the scale clearly.Look at the center of the scale for the units the scale uses. It will be grams and /or Newtons.Check that round platform is set at zero (x) on the scale.Hook the object you are weighing onto the hook that hangs down from the scale. If there is a basket or pan suspended below the scale, place the object on the pan.Wait for the spring to stop moving up and down. Once it stops moving, look at the markings on the side of the scale and record the weight. On most scales it can be recorded in both grams and Newtons.X
19to how many Newtons will they measure? Look at the spring scale drawings below, upto how many Newtons will they measure?Each spring scale measures up to five Newtons (N).How many parts is each Newton divided into?ten partsHow manyNewtons?0.7 N
21What tools do scientists use to measure temperature? Thermometers
22What is temperature?Temperature is a measure of how hot or cold something is.It is the measure of the heat or thermal energy in a substance.It is the average speed of the particles in a substance.
23Measuring Temperature There are two different scales we will use to measure temperature.Fahrenheit scale – water freezes at 320 and boils at 2120FCelsius (centigrade) scale- water freezes at 00C and boils at 1000CClick on the hyperlink below for anInteractive Thermometer
24Brain Check Measurement Tool Metric Unit Ruler /Tape measure Balance Spring ScaleGraduated cylinderThermometerNewtonsDegrees CelsiusMillilitersGramsCentimeters*How does measurement help us know about the world?