Notes SPI 0807 Inq 2 Tools and Procedures

Notes SPI 0807. Inq. 2 (Tools and Procedures) Science Tools Emphasis Tennessee SPI Objective: Select tools and procedures needed to conduct a moderately complex experiment. Essential Questions 1) Which tools would be best to use when conducting a science experiment? 2) How do I correctly use common scientific tools such as spring scales, triple-beam balances, metric rulers, calculators, graduated cylinders, stop watches, etc. I Can Statement I can identify and explain how to use a variety of scientific tools. .

Scientific Tools In an experiment… …you measure things with the metric system using tools such as: …a spring scale -measures force (weight) -unit of measure: newtons (N)

Scientific Tools In an experiment… …you measure things with the metric system using tools such as: …a graduated cylinder -measures liquid volume and/or -the volume of irregular shaped objects (water displacement method) -unit of measure: milliliter (m. L), liter (L) Link (1 min 57 sec): How to Read a Graduated Cylinder Link (3 min 45 sec): Finding the Volume of an Irregular Shaped Object

Scientific Tools When determining the volume of an object… …you can use a metric ruler for regular-shaped solid items. Use this formula: Length x Width x Height -useful for cubes and/or rectangular prisms Link (1 min 7 sec): Calculating Volume of Regular Shapes

In an experiment…you measure things using tools such as: …a triple-beam balance -measures mass -unit of measure: milligrams (mg) , grams (g) , kilograms (kg) Link (2 min 25 sec): How to use a Triple-Beam Balance-Video

Scientific Tools In an experiment…you measure things using tools such as: …a metric ruler or meter stick -measures length -unit of measure: millimeters (mm) , centimeters (cm), meters (m), kilometers (km)

Scientific Tools In an experiment…you measure things using tools such as: …a thermometer -measures temperature -unit of measure: degrees-Celsius (C) or Kelvins (K)

Scientific Tools In an experiment…you might need to examine tiny things… …you would use a microscope -two types: (1) regular microscope, (2) electron microscopes

Scientific Tools In an experiment… …you might need to measure the strength of an acid or base -use a p. H indicator -unit of measure: p. H scale from 0 to 14

Scientific Tools In an experiment… …you might use a galvanometer to measure electrical current -measures both the strength and direction of electrical current Note: To just measure the current you could use an ammeter

Scientific Tools In an experiment… …you also might use… -beakers -test tubes Beaker Test tubes -flasks Flask

Scientific Tools In an experiment… …you also might use… -hot plates -petri dishes -burners Petri dish hot plate Bunsen burner

Liquids in containers form a curved line called a meniscus. Questions Meniscus SPI 0807. Inq. 2 Tools and Procedures Place the cylinder on a flat surface. View the meniscus at eye level. Science Always read the measure at the bottom/center of the meniscus. Graduated Cylinder: used to measure volume (liters)

SPI 0807. Inq. 2 Meter Stick/Metric Tape Measure: used to measure length (Meters) Questions Science Tools and Procedures Spring Scale: used to measure force (Newtons)

SPI 0807. Inq. 2 Questions Science Tools and Procedures Triple Beam Balance: used to measure mass (grams) Note: does not measure weight!

SPI 0807. Inq. 2 Questions Science Tools and Procedures Graduated Cylinder: used to measure volume (liters)

Questions SPI 0807. Inq. 2 Tools and Procedures Science Galvanometers/Ammeters: measures electricity (volts or amps)