Does this make sense to you?

Download Does this make sense to you?

Post on 22-Feb-2016

28 views

Category:

Documents

0 download

DESCRIPTION

Does this make sense to you?. The Metric System. The metric system is a system of measurement that is based on the number ten It is often used in science and in countries around the world. Why do we use the metric system?. - PowerPoint PPT Presentation

TRANSCRIPT

Does this make sense to you?Does this make sense to you?The Metric SystemThe metric system is a system of measurement that is based on the number tenIt is often used in science and in countries around the worldWhy do we use the metric system?The metric system can be used to measure mass, volume, length, and temperatureBut how is it any different?The English System (our system) uses feet, ounces, gallons and FahrenheitThe metric system uses meters, grams, liters and CelsiusLengthRulerWhat is Length?It is the measured distance between two pointsDistance between two pointsLength can also be referred to as width, height, or distance, depending on how it is used.A ruler is used to measure distances between objects.MassTriple Beam BalanceMass tells us HOW MUCH matter there is. It is measured in grams.Example 5 grams of salt 10 kilograms of feathersMatter anything that has mass and takes up space. It is found in three different states.SolidLiquidGasExamples:A Triple Beam Balance is the lab equipment used to measure mass. Measurements are expressed in GRAMSVolumeGraduated Cylinder/RulerHow does one measure volume?Volume describes how much SPACE an object takes up. Volume can change depending on the state of matter. Solids and liquids have a constant volume, gases change based on the size of the containerThere are two methodsGraduated CylinderRulerUsed to measure the volume of a liquid OR an irregularly shaped object (like a jagged rock)Can be used to measuring and then multiplying the length, width, and height of an object.Volume = L x W x HTemperatureThermometerWhat is Temperature?Temperature is a measure of how much energy an object contains. Measured in Celsius or Kelvin.More energy = higher temperatureDensityDensity How much stuff is in a certain amount of spaceObjects that are more dense sink to the bottomExample Dropping a rock in water- if the rock is MORE dense than the water, it sinks-if the rock is LESS dense than the water, it floatsDensity cannot be measured by one piece of lab equipmentYou need the MASS and the VOLUMEDensity = Mass VolumeD = M/VUnits g/mlORg/cm3The Magic Triangle1. Length2. Volume3. Mass4. Density5. TemperatureWhat areUnitsToolsMeter (m)Metric rulerLiter, cm3 = mLMetric ruler or graduated cylinderGrams (g)Triple-beam balanceg/ml or g/cm3Tools for mass &volumeC or Kthermometer