Notes About Tools and Procedures
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Transcript Notes About Tools and Procedures
SPI
0807.Inq.2
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(Tools
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Procedures
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Tools
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in Science
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3)The
procedures
used in science
are called
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scientific method
advance through thisScientific
presentation.
Method
(In Flow Chart Format)
These procedures involve thoroughly examining events and items
in nature, finding patterns, and drawing logical conclusions based
on verifiable evidence
Notes
SPI 0807.Inq.2
(Tools and Procedures
Tools and Procedures in Science
The procedures used in science are called the scientific method
Scientific Method
(In List Format)
Step 1: Make Observations
Step 2: Ask A Question
Step 3: Form A Hypothesis
Step 4: Test The Hypothesis
By doing experiments
Step 5: Analyze The Results
Step 6: Draw Conclusions
Step 7: Communicate results
A key procedure is when test your hypothesis by doing detailed
and thorough experiments (step 4 shown above)
Notes
SPI 0807.Inq.2
(Tools and Procedures
Experiments
In an experiment you measure a quantities and/or qualities
In an experiment you should conduct multiple trials
Experiments should include independent variables, dependent
variables, constants, and controls.
Example:
Scientists could be testing a new vaccine for the flu virus to
determine how effective it is
Scientists could be measuring how air pollution damages plants
and animals
Scientists could be measuring the output of solar flares to
determine how they might damage our communication
satellites
Notes
SPI 0807.Inq.1
Experiments
(Variables
and Controls)
In an experiment…
…you should only test for ONE key thing at a time
This is called the…
…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)
Notes
SPI 0807.Inq.2
(Tools
and Procedures
Experiments
In an experiment…
…you use scientific tools such as…
…a spring scale -measures force (weight)
…a graduated cylinder -measures volume
…a triple beam balance -measures mass
…a metric ruler or meter stick -measures length
…a microscope -allows you to observe very small things
…a metric thermometer-measures temperature
…a stop watch -measures time
…a pH indicator -measures acidity and basicity
…a galvanometer -measures electrical current
(strength and direction)
Notes
SPI 0807.Inq.2
(Tools and Procedures
Scientific Tools
Notes
SPI 0807.Inq.2
(Tools and Procedures
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)
Notes
SPI 0807.Inq.2
(Tools and Procedures
Scientific Tools
In an experiment…
…you measure things with the metric system using tools such as:
…a graduated cylinder-measures volume
-unit of measure: liters
-examples: milliliter (mL), liter (L)
-can be converted to cubic centimeters etc.
-measures both liquid volume and volume of irregular solids
Notes
SPI 0807.Inq.2
(Tools and Procedures
Scientific Tools
In an experiment…
…you measure things with the metric system using tools such as:
…a triple beam balance (or electric balance) -measures mass
-unit of measure: grams
-examples: milligrams (mg), grams (g), kilograms (kg)
Notes
SPI 0807.Inq.2
(Tools and Procedures
Scientific Tools
In an experiment…
…you measure things with the metric system using tools such as:
…a metric ruler or meter stick-measures length
-unit of measure: meters
-examples: millimeter (mm), centimeter (cm), meter (m), kilometer (km)
Notes
SPI 0807.Inq.2
(Tools
and Procedures
Scientific
Tools
In an experiment…
…you might need to look at things that are very small
…you would use a microscope
Notes
SPI 0807.Inq.2
(Tools and Procedures
Scientific Tools
In an experiment…
…you measure things with the metric system using tools such as:
…a metric thermometer-measures temperature
-unit of measure: degrees-celsius (C) or kelvins (K)
Notes
SPI 0807.Inq.2
Scientific
Tools
(Tools
and Procedures
In an experiment…
…you could measure the strength of an acid or base with a…
…pH Indicator
-measures acidity and basicity
-unit of measure: pH scale reading from 0 to 14
Notes
SPI 0807.Inq.2
Scientific
Tools
(Tools
and Procedures
In an experiment…
…you also might use a galvanometer to measure electrical current
…measures both the strength & direction of electrical current
Notes
SPI 0807.Inq.2
Scientific
Tools
(Tools
and Procedures
In an experiment…
…you also might use……
…beakers
…test tubes
beaker
Test tubes
…flasks
flask
Notes
SPI 0807.Inq.2
Scientific
Tools
(Tools
and Procedures
In an experiment…
…you also might use……
…a hot plate
…a Petri dish
…a Bunsen burner
Petri dish
hot plate
Bunsen burner