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WHY?=
"Scientific Wa= ys of Knowing"
"What will your experimental set-up..."
Conclusion<= /font>
Why choose an inqui= ry based activity?
------=_NextPart_01C5E540.241FD220 Content-Location: file:///C:/E5334AAE/Popcorn_files/v3_outline_expanded.htm Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset="windows-1252"| Tisha Mickley | |
| Jo Ann Buckingham | |
| Jenna Briggs= |
| Why use popcorn? | |
| Why use this activi= ty? | |
| Does it meet standa= rds? |
| Scientific Inquiry<= /font> | |
| 1. Explain that variables and controls c= an affect the results of an investigation and that ideally one variable shou= ld be tested at a time; however it is not always possible to control all variables. | |
| 2. Identify simple independent and depen= dent variables. | |
| 3. Formulate and identify questions to g= uide scientific investigations. | |
| 4. Choose the appropriate tools and instruments and use relevant saf= ety procedures to complete scientific investigations. | |
| 7. Use graphs, tables and charts to study physical phenomena and infer mathematical relationships between variables= . | |
"Scientific Wa= ys of Knowing"
| Scientific Ways of = Knowing | |
| 1. Show that the reproducibility of resu= lts is essential to reduce bias in scientific investigations. | |
| 2. Describe how repetition of an experim= ent may reduce bias. |
| Science as Inquiry<= /font> | |
| CONTENT STANDARD A:=
As a result of activities in grades 5-8, all students should develop: |
|
| Abilities necessary= to do scientific inquiry | |
| Understandings abou= t scientific inquiry |
| Will all corn pop?<= /font> | |
| Why does popcorn po= p? | |
| What makes some ker= nels pop and others not? | |
| What makes popcorn = fluffy? |
| Oldest ears of popc= orn ever discovered were in Bat Cave, New Mexico in 1948. They were estimated to be 4000 years = old. | |
| Popcorn was used in= ceremonies honoring Aztec gods. |
| Due to the fact tha= t sugar was sent to the troops in WWII, Americans ate 3 times as much popcorn as usua= l. | |
| The average America= n today eats about 54 quarts per year. | |
| Heating sand in a f= ire and stirring in the kernels was the original way of popping. | |
| In the 18th century boiled oil or fat was used to make the kernels pop. | |
| After WWII microwav= e technology was applied to develop an oven which was used to pop corn. | |
| Current methods inc= lude: air poppers, oil poppers, and microwa= ve ovens. |
Materials
Hot Air Popper
Water
Popcorn Kernels
Cups
Oven
Graduated Cylinders=
Cookie Sheet=
| How does _________ = affect ___________? | |
| What is your hypoth= esis? |
| Factors you could v= ary (& controls) | |
| Responses |
| What will you measu= re to test your hypothesis? | |
| What controls or al= ternatives should you consider? | |
| How many trials wil= l you conduct? |
"What will your experimental set-up..."
| What will your expe= rimental set-up look like? | |
| Draw and label a di= agram. | |
| Conduct and record = data on data sheet. |
| Make a table, graph= or chart. (control on x-axis and re= sponse on y-axis) |
Conclusion<=
/font>
What can you conclu=
de based on
your results alone?
Take brief notes on=
other
students’ results.
Expand on your conc=
lusions
using your notes from the class discussion.
| If you did this aga= in, what questions would you investigate? | |
| What if you had soa= ked the popcorn in sugar water? | |
| If you used a diffe= rent method to pop the corn, do you think the results would be different? |
| Why do you think th= e data turned out the way it did? | |
| How do you think yo= ur data would change with a different independent variable? |
| The Good | |
| The Bad | |
| The Ugly | |
| Measured length of<= span style=3D'mso-spacerun:yes'> popped kernels | |
| Volume of popcorn | |
| Number popped | |
Why choose an inqui= ry based activity?
| Critical thinking s= kills are developed. | |
| Students become act= ively involved in the learning process. | |
| Problem solving ski= lls are fine tuned. | |
| Learn to design and= organize an experiment and interpret information. | |
| Increases self-este= em through team work. |
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