1. T. Trimpe 2008 http://sciencespot.net/

2. 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)

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

4. Standard Temperatures  Freezing = 0 °C  Room Temp. = 22-24 °C  Body Temp. = 37 °C  Boiling = 100 °C

5. 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

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

7. 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

8. 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

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