Tennessee SPI Objective: Select tools and procedures needed to conduct a moderately complex...

Tennessee SPI Objective:Select tools and procedures needed to conduct a moderately complex experiment.

Notes Science

Essential Questions1) Which tools and procedures 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.

Check for UnderstandingIdentify tools and techniques needed to gather, organize, analyze,

and interpret data from a moderately complex scientific

investigation.

SPI 0807.Inq.2 (Tools and Procedures)

Notes Science

A key task is to test your hypothesis by doing detailed and thorough experiments (step 4 shown above)

SPI 0807.Inq.2 Tools and Procedures

Tools and Procedures in Science Procedures in science are called the scientific method

Scientific Method

Step 1: Make ObservationsStep 2: Ask A QuestionStep 3: Form A HypothesisStep 4: Test The Hypothesis By doing experimentsStep 5: Analyze The ResultsStep 6: Draw ConclusionsStep 7: Communicate results

In an experiment you……measure quantities and/or qualities…should record in detail everything you do and observe.…should conduct multiple trials.…should include independent variables, dependent variables,

constants, and controls.

Notes ScienceSPI 0807.Inq.2 Tools and ProceduresTake Notes: just copy down the green text

Ex: Medical researchers might test a new flu virus vaccine tolearn how many people it protects from the flu. (quantity).

Ex: Software designers might measure the “playability” of newPlaystation or X-Box video games (quality).

This is a quantitative/objective measurement.

This is a qualitative/subjective measurement.

Procedures in Experiments

In an experiment……you should only test for ONE key thing at a timeThis is called the…

Key Concepts in Experiments

…after you introduce the independent variable, you observe what happens. This response/result is called the…

Items or events that are repeated exactly the same way each time you duplicate an experiment are called…

NOTE: You should also conduct a control experiment where you either eliminate out the independent variable or use a neutral independent variable (called a placebo)

Scientific Tools

…a spring scale

-measures force (weight)

In an experiment……you measure things with the metric system using tools such

as:

-unit of measure:

newtons (N)

Scientific Tools

…a graduated cylinder

-measures liquid volume and/or

-the volume of irregular shaped objects(water displacement method)

In an experiment……you measure things with the metric system using tools such

as:

-unit of measure:

milliliter (mL), 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

Use this formula: Length x Width x Height

-useful for cubes and/or rectangular prisms

When determining the volume of an object……you can use a metric ruler for regular-shaped solid items.

Link (1 min 7 sec): Calculating Volume of Regular Shapes

…a triple-beam balance

-measures mass

In an experiment…you measure things using tools such as:

-unit of measure:

milligrams (mg) , grams (g) , kilograms (kg)

Link (2 min 25 sec): How to use a Triple-Beam Balance-Video

Scientific Tools

…a metric ruler or meter stick

-measures length

In an experiment…you measure things using tools such as:

-unit of measure:

millimeters (mm) , centimeters (cm), meters (m) , kilometers (km)

Scientific Tools

…a thermometer

-measures temperature

In an experiment…you measure things using tools such as:

-unit of measure:

degrees-Celsius (C) or Kelvins (K)

Scientific Tools

…you would use a microscope

In an experiment…you might need to examine tiny things…

-two types: (1) regular microscopes, (2) electron microscopes

Scientific Tools

…you might need to measure the strength of an acid or base

-you could use a pH indicator

In an experiment…

-unit of measure:

pH scale from 0 to 14

Scientific Tools

…you might use a galvanometer to measure electrical current

-measures both the strength and direction of electrical current

In an experiment…

…to just measure the current you could use an ammeter

Scientific Tools

…you also might use…

-beakers

In an experiment…

flaskTest tubesbeaker

-test tubes -flasks

Scientific Tools

…you also might use…

-hot plates

In an experiment…

-petri dishes -burners

Bunsen burner

Petri dish

hot plate

Questions ScienceSPI 0807.Inq.2 Tools and Procedures

Questions ScienceSPI 0807.Inq.2 Tools and Procedures

Questions ScienceSPI 0807.Inq.2 Tools and Procedures

Questions ScienceSPI 0807.Inq.2 Tools and Procedures

Questions ScienceSPI 0807.Inq.2 Tools and Procedures