SlideShare a Scribd company logo
1 of 25
• A logical, problem solving
technique
• A Step-by-step way in which
scientists answer questions.
1. Observation
2. Ask a
Question
3. Background
research
5. Design and conduct
an experiment
6. Collect data
7. Analyze and Graph
Data
8. Draw
Conclusions
4. Formulate a
hypothesis
• You observe something in the material world,
using your senses or machines which are
basically extensions of those senses.
AH—Look at this!
• The problem identifies what you want to find out. State
the problem in the form of a question:
• Examples:
Ex. Do bean seeds grow faster when fed
compost or fertilizer?
How does __________ affect _______?
What is the effect of _______ on ________?
Why” and “What would happen if..” are also good
beginnings of scientific questions.
• They must be testable:
For example: Are Canaries prettier than blue birds?
Not testable
Scientists never start from scratch in putting together a plan for answering a
question. You should use library and Internet research to help you find the
best way to do things and insure that you don't repeat mistakes from the
past.
• Background research is necessary so that you know how to design and
understand your experiment and how to write a hypothesis.
• Use a table with the "question words" (why, how, who, what, when,
where) to generate research questions from your keywords.
For example:
When does a plant grow the most, with fertilizer or compost?
What plants are most suitable for my experiment?
How many plants must I use?
• Plan to do background research on the history of similar
experiments or inventions.
• Ask other people with more experience than yourself: your
parents and teachers.
• A hypothesis is NOT just an educated guess about
what you think will happen. It must beTESTABLE!!!!
a) Answers the observation and predicts an
outcome of the experiment.
b) “If… then… because” Statement
c) If…..independent variable,
then ….dependent variable
Ex. If given compost, then bean plants
will grow faster than those given fertilizer
• Experiment: a procedure to test the hypothesis
• How are you going to test your hypothesis?
• You Design an Experiment!
• It must include: materials and a step by step
instructions
• Must be run multiple times
• Write all measurements and results of the experiment. They may
be quantitative (numbers) or qualitative
• Be consistent when you are checking your experiments and
recording the results
• Use a table to organize your data in a chart with a title.
– List your independent variable on the left side
– Record your dependent variables on the right side
• If you have more than one dependent variable, use a new column
for each dependent variable
Example:
• Make the data table into a graph
• Graphs make it easier to see patterns in the data.
Graphs
X-axis independent variable
Y-axis dependent variable
Line Graph
a. Used to show changes in dependent variable (plant
growth) over time.
b. Must have title, x-axis title (with units) and y-axis title (with
units)
c. Compare and look for trends and patterns using graphs
example
5 10 15 20 25 30 35 40 45 50 55
0
1
2
3
4
5
6
Growth of Plant A Over Time
Time (Days)
PlantHeight(cm)
Bar Graph
a. Use it when a set of measurements can be split into discrete
and comparable groups
b. To show the relative change between these groups.
c. Must have titles and legend
0
1
2
3
4
5
6
Average Plant Growth over 50 Days
Plant A
(Control)
Plant B (Fer-
tilizer
Added)
Plant C
(Compost
Added)
Plant A Plant B Plant C
AverageGrowthinCentimeters
Pie Graph
a. When showing parts of a whole..i.e. percentages
b. Must have a title and a legend
• Indicate the results. Explain why those results
where given.
• Answer:
– Do your results/data support your hypothesis?
Why or why not?
– What are ways you can improve your data?
– What would you do differently if you were to
repeat the experiment?
Claim
a. Restate your hypothesis
b. Ex. If given compost, then bean plants will grow taller than those given
fertilizer.
Evidence
a. Accept or reject your hypothesis
b. Use the numbers from your chart and graph to explain why.
c. Ex. Plant C which was given only compost grew to a maximum height of
5 cm, Plant B which was given fertilizer grew to a maximum height of
4cm and Plant A which was given nothing at all grew to a maximum
height of 3cm. Therefore, the hypothesis is accepted.
Reasoning
a. Scientifically explain WHY what happened occurred.
b. Ex. Fertilizer contains only trace elements such as phosphorous,
nitrogen and sulphur while compost contains decaying matter
which can provide many complex organic nutrients for a bean
plant. Therefore, the plant treated with compost grows taller.
• A lab report MUST be written after every
investigation.
• A lab report contains the following parts:
1.Title
2. Introduction
3. Materials
4. Procedure
5. Results
6. Conclusions

More Related Content

What's hot

Introduction to Science 3.2 : Scientific Methods
Introduction to Science 3.2 : Scientific MethodsIntroduction to Science 3.2 : Scientific Methods
Introduction to Science 3.2 : Scientific Methods
Chris Foltz
 
0104 nature of science gff_online
0104 nature of science gff_online0104 nature of science gff_online
0104 nature of science gff_online
naftzingerj
 
Module 1 lesson 1
Module 1 lesson 1Module 1 lesson 1
Module 1 lesson 1
bthurmond
 
Scientific Inquiry
Scientific InquiryScientific Inquiry
Scientific Inquiry
dwinter1
 
Scientific method (1)
Scientific method (1)Scientific method (1)
Scientific method (1)
Stella Jang
 
Error Bars in experimental biology
Error Bars in experimental biologyError Bars in experimental biology
Error Bars in experimental biology
savvysahana
 
Apollo 13 NASA
Apollo 13 NASAApollo 13 NASA
Apollo 13 NASA
kbitah
 

What's hot (20)

Introduction to Science 3.2 : Scientific Methods
Introduction to Science 3.2 : Scientific MethodsIntroduction to Science 3.2 : Scientific Methods
Introduction to Science 3.2 : Scientific Methods
 
Scientific method
Scientific methodScientific method
Scientific method
 
0104 nature of science gff_online
0104 nature of science gff_online0104 nature of science gff_online
0104 nature of science gff_online
 
Missed notes (08 15 to 08 17)
Missed notes (08 15 to 08 17)Missed notes (08 15 to 08 17)
Missed notes (08 15 to 08 17)
 
Scientific inquiry
Scientific inquiryScientific inquiry
Scientific inquiry
 
Scientific method (Biology A)
Scientific method (Biology A)Scientific method (Biology A)
Scientific method (Biology A)
 
Module 1 lesson 1
Module 1 lesson 1Module 1 lesson 1
Module 1 lesson 1
 
Scientific Inquiry
Scientific InquiryScientific Inquiry
Scientific Inquiry
 
Science process skills (1)
Science process skills (1)Science process skills (1)
Science process skills (1)
 
Scientific inquiry.ppt
Scientific inquiry.pptScientific inquiry.ppt
Scientific inquiry.ppt
 
Gtscimeth
GtscimethGtscimeth
Gtscimeth
 
Scientific method notes updated aug2014
Scientific method notes   updated aug2014Scientific method notes   updated aug2014
Scientific method notes updated aug2014
 
Scientific method (1)
Scientific method (1)Scientific method (1)
Scientific method (1)
 
7th Grade Chapter 1 Lesson 1 pgs.3-8
7th Grade Chapter 1 Lesson 1 pgs.3-87th Grade Chapter 1 Lesson 1 pgs.3-8
7th Grade Chapter 1 Lesson 1 pgs.3-8
 
Life Science Chapter 1, Section 3 Scientific Inquiry
Life Science Chapter 1, Section 3 Scientific InquiryLife Science Chapter 1, Section 3 Scientific Inquiry
Life Science Chapter 1, Section 3 Scientific Inquiry
 
Science process skills by elina and visi
Science process skills by elina and visiScience process skills by elina and visi
Science process skills by elina and visi
 
Dr herc revised
Dr herc revisedDr herc revised
Dr herc revised
 
Error Bars in experimental biology
Error Bars in experimental biologyError Bars in experimental biology
Error Bars in experimental biology
 
Science fair project
Science fair projectScience fair project
Science fair project
 
Apollo 13 NASA
Apollo 13 NASAApollo 13 NASA
Apollo 13 NASA
 

Viewers also liked (9)

Entrevista josean rodriguez en Diario Vasco. Programa STARTInnova
Entrevista josean rodriguez en Diario Vasco. Programa STARTInnovaEntrevista josean rodriguez en Diario Vasco. Programa STARTInnova
Entrevista josean rodriguez en Diario Vasco. Programa STARTInnova
 
Setença
SetençaSetença
Setença
 
Formacions continuades expedients absis 2011
Formacions continuades expedients absis 2011Formacions continuades expedients absis 2011
Formacions continuades expedients absis 2011
 
Delivering a lecture by shirley
Delivering a lecture by shirleyDelivering a lecture by shirley
Delivering a lecture by shirley
 
Ejercicio de clase agosto 11
Ejercicio de clase agosto 11Ejercicio de clase agosto 11
Ejercicio de clase agosto 11
 
Identify Variables aimorales
Identify Variables aimoralesIdentify Variables aimorales
Identify Variables aimorales
 
Verdadeira Constituição
Verdadeira ConstituiçãoVerdadeira Constituição
Verdadeira Constituição
 
Formato de hoja de vida tics felix
Formato de hoja de vida tics felixFormato de hoja de vida tics felix
Formato de hoja de vida tics felix
 
Variables and Tables
Variables and TablesVariables and Tables
Variables and Tables
 

Similar to Ppt scientific method no variables

Ppt scientific method
Ppt scientific methodPpt scientific method
Ppt scientific method
aimorales
 
Sc. fair written report (exp. design)
Sc. fair written report (exp. design)Sc. fair written report (exp. design)
Sc. fair written report (exp. design)
thompsonj1064
 
2. Introduction to Science The Scientific Method (Presentation) Author Plainv...
2. Introduction to Science The Scientific Method (Presentation) Author Plainv...2. Introduction to Science The Scientific Method (Presentation) Author Plainv...
2. Introduction to Science The Scientific Method (Presentation) Author Plainv...
ZainSabri92
 
Sc. fair written report (part i)
Sc. fair written report (part i)Sc. fair written report (part i)
Sc. fair written report (part i)
thompsonj1064
 
Osmosis report powerpoint
Osmosis report powerpointOsmosis report powerpoint
Osmosis report powerpoint
clairebloom
 
Scientific method powerpoint.php
Scientific method powerpoint.phpScientific method powerpoint.php
Scientific method powerpoint.php
aimorales
 
Scientific method notes
Scientific method notesScientific method notes
Scientific method notes
mrsdira
 
Scientific Method Pp
Scientific Method PpScientific Method Pp
Scientific Method Pp
mcmullan
 
Revisions checklist for_igcse_biology_0610_final
Revisions checklist for_igcse_biology_0610_finalRevisions checklist for_igcse_biology_0610_final
Revisions checklist for_igcse_biology_0610_final
Jithesh Parambath
 
Revisions checklist for_igcse_biology_0610_final - copy
Revisions checklist for_igcse_biology_0610_final - copyRevisions checklist for_igcse_biology_0610_final - copy
Revisions checklist for_igcse_biology_0610_final - copy
Jithesh Parambath
 

Similar to Ppt scientific method no variables (20)

Ppt scientific method
Ppt scientific methodPpt scientific method
Ppt scientific method
 
Introduction to Scientific Method.pptx
Introduction to Scientific Method.pptxIntroduction to Scientific Method.pptx
Introduction to Scientific Method.pptx
 
Sc. fair written report (exp. design)
Sc. fair written report (exp. design)Sc. fair written report (exp. design)
Sc. fair written report (exp. design)
 
Power point scientific method (1)
Power point   scientific method (1)Power point   scientific method (1)
Power point scientific method (1)
 
unit_1_the_scientific_method_ppt.ppt
unit_1_the_scientific_method_ppt.pptunit_1_the_scientific_method_ppt.ppt
unit_1_the_scientific_method_ppt.ppt
 
The Scientific Method
The Scientific MethodThe Scientific Method
The Scientific Method
 
Q1 - WEEK 1 - Scientific Investigation.pptx
Q1 - WEEK 1 - Scientific Investigation.pptxQ1 - WEEK 1 - Scientific Investigation.pptx
Q1 - WEEK 1 - Scientific Investigation.pptx
 
2. Introduction to Science The Scientific Method (Presentation) Author Plainv...
2. Introduction to Science The Scientific Method (Presentation) Author Plainv...2. Introduction to Science The Scientific Method (Presentation) Author Plainv...
2. Introduction to Science The Scientific Method (Presentation) Author Plainv...
 
Sc. fair written report (part i)
Sc. fair written report (part i)Sc. fair written report (part i)
Sc. fair written report (part i)
 
The scientific investigation
The  scientific investigationThe  scientific investigation
The scientific investigation
 
Osmosis report powerpoint
Osmosis report powerpointOsmosis report powerpoint
Osmosis report powerpoint
 
Scientific method powerpoint.php
Scientific method powerpoint.phpScientific method powerpoint.php
Scientific method powerpoint.php
 
Conducting a Scientific Investigation in High School
Conducting a Scientific Investigation in High SchoolConducting a Scientific Investigation in High School
Conducting a Scientific Investigation in High School
 
Swansfield Science Fair Packet
Swansfield Science Fair PacketSwansfield Science Fair Packet
Swansfield Science Fair Packet
 
Scientific Method Notes
Scientific Method NotesScientific Method Notes
Scientific Method Notes
 
SCIENTIFIC METHODS.pptx
SCIENTIFIC METHODS.pptxSCIENTIFIC METHODS.pptx
SCIENTIFIC METHODS.pptx
 
Scientific method notes
Scientific method notesScientific method notes
Scientific method notes
 
Scientific Method Pp
Scientific Method PpScientific Method Pp
Scientific Method Pp
 
Revisions checklist for_igcse_biology_0610_final
Revisions checklist for_igcse_biology_0610_finalRevisions checklist for_igcse_biology_0610_final
Revisions checklist for_igcse_biology_0610_final
 
Revisions checklist for_igcse_biology_0610_final - copy
Revisions checklist for_igcse_biology_0610_final - copyRevisions checklist for_igcse_biology_0610_final - copy
Revisions checklist for_igcse_biology_0610_final - copy
 

More from aimorales (20)

La geosfera
La geosferaLa geosfera
La geosfera
 
Introducción 1ºESO
Introducción 1ºESOIntroducción 1ºESO
Introducción 1ºESO
 
Covid 19 mitos y preguntas
Covid 19 mitos y preguntasCovid 19 mitos y preguntas
Covid 19 mitos y preguntas
 
Embryonic development
Embryonic developmentEmbryonic development
Embryonic development
 
Presentación anuncios tabaco
Presentación anuncios tabacoPresentación anuncios tabaco
Presentación anuncios tabaco
 
Ejemplos contrapublicidad Clase sin Humo
Ejemplos contrapublicidad Clase sin HumoEjemplos contrapublicidad Clase sin Humo
Ejemplos contrapublicidad Clase sin Humo
 
Anaya interaction function process
Anaya  interaction function processAnaya  interaction function process
Anaya interaction function process
 
Anaya interaction in plants
Anaya interaction in plantsAnaya interaction in plants
Anaya interaction in plants
 
Energy sources
Energy sourcesEnergy sources
Energy sources
 
Biomes
BiomesBiomes
Biomes
 
Mussel dissection
Mussel dissectionMussel dissection
Mussel dissection
 
How to write a science essay
How to write a science essayHow to write a science essay
How to write a science essay
 
Myp intro 2014 unit 3 2º
Myp intro 2014 unit 3 2ºMyp intro 2014 unit 3 2º
Myp intro 2014 unit 3 2º
 
Myp intro 2014 unit 2 2º
Myp intro 2014 unit 2 2ºMyp intro 2014 unit 2 2º
Myp intro 2014 unit 2 2º
 
Introducción pai unit 2 1º 2014
Introducción pai unit 2 1º 2014Introducción pai unit 2 1º 2014
Introducción pai unit 2 1º 2014
 
Assessment criteria nc 2014 1º
Assessment criteria nc 2014 1ºAssessment criteria nc 2014 1º
Assessment criteria nc 2014 1º
 
Assessment criteria nc 2014 2º
Assessment criteria nc 2014 2ºAssessment criteria nc 2014 2º
Assessment criteria nc 2014 2º
 
Estados de la materia
Estados de la materiaEstados de la materia
Estados de la materia
 
Elementos
ElementosElementos
Elementos
 
Tabla periódica
Tabla periódicaTabla periódica
Tabla periódica
 

Recently uploaded

LUNULARIA -features, morphology, anatomy ,reproduction etc.
LUNULARIA -features, morphology, anatomy ,reproduction etc.LUNULARIA -features, morphology, anatomy ,reproduction etc.
LUNULARIA -features, morphology, anatomy ,reproduction etc.
Cherry
 
Porella : features, morphology, anatomy, reproduction etc.
Porella : features, morphology, anatomy, reproduction etc.Porella : features, morphology, anatomy, reproduction etc.
Porella : features, morphology, anatomy, reproduction etc.
Cherry
 
COMPOSTING : types of compost, merits and demerits
COMPOSTING : types of compost, merits and demeritsCOMPOSTING : types of compost, merits and demerits
COMPOSTING : types of compost, merits and demerits
Cherry
 
The Mariana Trench remarkable geological features on Earth.pptx
The Mariana Trench remarkable geological features on Earth.pptxThe Mariana Trench remarkable geological features on Earth.pptx
The Mariana Trench remarkable geological features on Earth.pptx
seri bangash
 
development of diagnostic enzyme assay to detect leuser virus
development of diagnostic enzyme assay to detect leuser virusdevelopment of diagnostic enzyme assay to detect leuser virus
development of diagnostic enzyme assay to detect leuser virus
NazaninKarimi6
 
Pteris : features, anatomy, morphology and lifecycle
Pteris : features, anatomy, morphology and lifecyclePteris : features, anatomy, morphology and lifecycle
Pteris : features, anatomy, morphology and lifecycle
Cherry
 
(May 9, 2024) Enhanced Ultrafast Vector Flow Imaging (VFI) Using Multi-Angle ...
(May 9, 2024) Enhanced Ultrafast Vector Flow Imaging (VFI) Using Multi-Angle ...(May 9, 2024) Enhanced Ultrafast Vector Flow Imaging (VFI) Using Multi-Angle ...
(May 9, 2024) Enhanced Ultrafast Vector Flow Imaging (VFI) Using Multi-Angle ...
Scintica Instrumentation
 

Recently uploaded (20)

Terpineol and it's characterization pptx
Terpineol and it's characterization pptxTerpineol and it's characterization pptx
Terpineol and it's characterization pptx
 
Sequence submission tools ............pptx
Sequence submission tools ............pptxSequence submission tools ............pptx
Sequence submission tools ............pptx
 
Genome sequencing,shotgun sequencing.pptx
Genome sequencing,shotgun sequencing.pptxGenome sequencing,shotgun sequencing.pptx
Genome sequencing,shotgun sequencing.pptx
 
Energy is the beat of life irrespective of the domains. ATP- the energy curre...
Energy is the beat of life irrespective of the domains. ATP- the energy curre...Energy is the beat of life irrespective of the domains. ATP- the energy curre...
Energy is the beat of life irrespective of the domains. ATP- the energy curre...
 
LUNULARIA -features, morphology, anatomy ,reproduction etc.
LUNULARIA -features, morphology, anatomy ,reproduction etc.LUNULARIA -features, morphology, anatomy ,reproduction etc.
LUNULARIA -features, morphology, anatomy ,reproduction etc.
 
Porella : features, morphology, anatomy, reproduction etc.
Porella : features, morphology, anatomy, reproduction etc.Porella : features, morphology, anatomy, reproduction etc.
Porella : features, morphology, anatomy, reproduction etc.
 
Fourth quarter science 9-Kinetic-and-Potential-Energy.pptx
Fourth quarter science 9-Kinetic-and-Potential-Energy.pptxFourth quarter science 9-Kinetic-and-Potential-Energy.pptx
Fourth quarter science 9-Kinetic-and-Potential-Energy.pptx
 
TransientOffsetin14CAftertheCarringtonEventRecordedbyPolarTreeRings
TransientOffsetin14CAftertheCarringtonEventRecordedbyPolarTreeRingsTransientOffsetin14CAftertheCarringtonEventRecordedbyPolarTreeRings
TransientOffsetin14CAftertheCarringtonEventRecordedbyPolarTreeRings
 
COMPOSTING : types of compost, merits and demerits
COMPOSTING : types of compost, merits and demeritsCOMPOSTING : types of compost, merits and demerits
COMPOSTING : types of compost, merits and demerits
 
Selaginella: features, morphology ,anatomy and reproduction.
Selaginella: features, morphology ,anatomy and reproduction.Selaginella: features, morphology ,anatomy and reproduction.
Selaginella: features, morphology ,anatomy and reproduction.
 
The Mariana Trench remarkable geological features on Earth.pptx
The Mariana Trench remarkable geological features on Earth.pptxThe Mariana Trench remarkable geological features on Earth.pptx
The Mariana Trench remarkable geological features on Earth.pptx
 
Understanding Partial Differential Equations: Types and Solution Methods
Understanding Partial Differential Equations: Types and Solution MethodsUnderstanding Partial Differential Equations: Types and Solution Methods
Understanding Partial Differential Equations: Types and Solution Methods
 
Site specific recombination and transposition.........pdf
Site specific recombination and transposition.........pdfSite specific recombination and transposition.........pdf
Site specific recombination and transposition.........pdf
 
development of diagnostic enzyme assay to detect leuser virus
development of diagnostic enzyme assay to detect leuser virusdevelopment of diagnostic enzyme assay to detect leuser virus
development of diagnostic enzyme assay to detect leuser virus
 
FS P2 COMBO MSTA LAST PUSH past exam papers.
FS P2 COMBO MSTA LAST PUSH past exam papers.FS P2 COMBO MSTA LAST PUSH past exam papers.
FS P2 COMBO MSTA LAST PUSH past exam papers.
 
Pteris : features, anatomy, morphology and lifecycle
Pteris : features, anatomy, morphology and lifecyclePteris : features, anatomy, morphology and lifecycle
Pteris : features, anatomy, morphology and lifecycle
 
Genome organization in virus,bacteria and eukaryotes.pptx
Genome organization in virus,bacteria and eukaryotes.pptxGenome organization in virus,bacteria and eukaryotes.pptx
Genome organization in virus,bacteria and eukaryotes.pptx
 
X-rays from a Central “Exhaust Vent” of the Galactic Center Chimney
X-rays from a Central “Exhaust Vent” of the Galactic Center ChimneyX-rays from a Central “Exhaust Vent” of the Galactic Center Chimney
X-rays from a Central “Exhaust Vent” of the Galactic Center Chimney
 
(May 9, 2024) Enhanced Ultrafast Vector Flow Imaging (VFI) Using Multi-Angle ...
(May 9, 2024) Enhanced Ultrafast Vector Flow Imaging (VFI) Using Multi-Angle ...(May 9, 2024) Enhanced Ultrafast Vector Flow Imaging (VFI) Using Multi-Angle ...
(May 9, 2024) Enhanced Ultrafast Vector Flow Imaging (VFI) Using Multi-Angle ...
 
Adaptive Restore algorithm & importance Monte Carlo
Adaptive Restore algorithm & importance Monte CarloAdaptive Restore algorithm & importance Monte Carlo
Adaptive Restore algorithm & importance Monte Carlo
 

Ppt scientific method no variables

  • 1.
  • 2.
  • 3.
  • 4.
  • 5.
  • 6.
  • 7.
  • 8.
  • 9.
  • 10. • A logical, problem solving technique • A Step-by-step way in which scientists answer questions.
  • 11. 1. Observation 2. Ask a Question 3. Background research 5. Design and conduct an experiment 6. Collect data 7. Analyze and Graph Data 8. Draw Conclusions 4. Formulate a hypothesis
  • 12. • You observe something in the material world, using your senses or machines which are basically extensions of those senses. AH—Look at this!
  • 13. • The problem identifies what you want to find out. State the problem in the form of a question: • Examples: Ex. Do bean seeds grow faster when fed compost or fertilizer? How does __________ affect _______? What is the effect of _______ on ________? Why” and “What would happen if..” are also good beginnings of scientific questions. • They must be testable: For example: Are Canaries prettier than blue birds? Not testable
  • 14. Scientists never start from scratch in putting together a plan for answering a question. You should use library and Internet research to help you find the best way to do things and insure that you don't repeat mistakes from the past. • Background research is necessary so that you know how to design and understand your experiment and how to write a hypothesis. • Use a table with the "question words" (why, how, who, what, when, where) to generate research questions from your keywords. For example: When does a plant grow the most, with fertilizer or compost? What plants are most suitable for my experiment? How many plants must I use? • Plan to do background research on the history of similar experiments or inventions. • Ask other people with more experience than yourself: your parents and teachers.
  • 15. • A hypothesis is NOT just an educated guess about what you think will happen. It must beTESTABLE!!!! a) Answers the observation and predicts an outcome of the experiment. b) “If… then… because” Statement c) If…..independent variable, then ….dependent variable Ex. If given compost, then bean plants will grow faster than those given fertilizer
  • 16. • Experiment: a procedure to test the hypothesis • How are you going to test your hypothesis? • You Design an Experiment! • It must include: materials and a step by step instructions • Must be run multiple times
  • 17. • Write all measurements and results of the experiment. They may be quantitative (numbers) or qualitative • Be consistent when you are checking your experiments and recording the results • Use a table to organize your data in a chart with a title. – List your independent variable on the left side – Record your dependent variables on the right side • If you have more than one dependent variable, use a new column for each dependent variable
  • 19. • Make the data table into a graph • Graphs make it easier to see patterns in the data. Graphs X-axis independent variable Y-axis dependent variable
  • 20. Line Graph a. Used to show changes in dependent variable (plant growth) over time. b. Must have title, x-axis title (with units) and y-axis title (with units) c. Compare and look for trends and patterns using graphs example 5 10 15 20 25 30 35 40 45 50 55 0 1 2 3 4 5 6 Growth of Plant A Over Time Time (Days) PlantHeight(cm)
  • 21. Bar Graph a. Use it when a set of measurements can be split into discrete and comparable groups b. To show the relative change between these groups. c. Must have titles and legend 0 1 2 3 4 5 6 Average Plant Growth over 50 Days Plant A (Control) Plant B (Fer- tilizer Added) Plant C (Compost Added) Plant A Plant B Plant C AverageGrowthinCentimeters
  • 22. Pie Graph a. When showing parts of a whole..i.e. percentages b. Must have a title and a legend
  • 23. • Indicate the results. Explain why those results where given. • Answer: – Do your results/data support your hypothesis? Why or why not? – What are ways you can improve your data? – What would you do differently if you were to repeat the experiment?
  • 24. Claim a. Restate your hypothesis b. Ex. If given compost, then bean plants will grow taller than those given fertilizer. Evidence a. Accept or reject your hypothesis b. Use the numbers from your chart and graph to explain why. c. Ex. Plant C which was given only compost grew to a maximum height of 5 cm, Plant B which was given fertilizer grew to a maximum height of 4cm and Plant A which was given nothing at all grew to a maximum height of 3cm. Therefore, the hypothesis is accepted. Reasoning a. Scientifically explain WHY what happened occurred. b. Ex. Fertilizer contains only trace elements such as phosphorous, nitrogen and sulphur while compost contains decaying matter which can provide many complex organic nutrients for a bean plant. Therefore, the plant treated with compost grows taller.
  • 25. • A lab report MUST be written after every investigation. • A lab report contains the following parts: 1.Title 2. Introduction 3. Materials 4. Procedure 5. Results 6. Conclusions