T. Trimpe 2008 Observations  Quantitative – made with measuring tools and expressed in numbers (time, temp., mass, distance,

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Presentation transcript:

T. Trimpe

Observations  Quantitative – made with measuring tools and expressed in numbers (time, temp., mass, distance, volume, amounts)  Qualitative – descriptions made using the 5 senses (sights, sounds, smells, tastes, textures)

Metric Base Units MeasurementBase UnitMeasuring Tool VolumeLiter (L)Graduated Cylinder MassGrams (g)Triple Beam Balance LengthMeter (m)Metric Ruler TemperatureDegrees Celsius (°C) Metric Thermometer

Standard Temperatures  Freezing = 0 °C  Room Temp. = °C  Body Temp. = 37 °C  Boiling = 100 °C

Common Comparisons Volume:5 mL = 1 tsp. 355 mL = a can of soda Length:2.5 cm = 1 inch 30.5 cm = 1 foot 1.6 km = 1 mile Mass:A paper clip is approximately 1g 454 g = 1 pound

Volume of a Liquid  use a beaker or graduated cylinder  Volume = Amount of space a substance takes up.

Volume of Solid Objects  Square/Rectangular object = Length x Width x Height (L x W x H)  Irregular solid object: use displacement of a liquid

Volume by Displacement 1. Add water to beaker or graduated cylinder and note volume. (initial volume) 2. Add object to water and note volume. (final volume) 3. Final Volume – Initial Volume = Volume of Irregular Object

Initial Volume = 200 ml Final Volume = 300 ml 300 ml – 200 ml = 100 ml = volume of object