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Monday, November 25, 2019

Enjoy your holiday break!!! :) :) :)

Thanksgiving Science Article websites:



1. Dozing after Thanksgiving dinner? Don't blame the bird
https://newsela.com/read/thanksgiving-sleepy/id/47523/

2. For wild turkeys, there's a lot of chatter at family gatherings
https://newsela.com/read/turkeys-thanksgiving/id/2000002113/

3. Lots of possibilities here!
http://www.sciencefriday.com/spotlights/thanksgiving-science/

4. Lots of possibilities here too!
http://chemistry.about.com/od/thanksgivingchemistry/tp/thanksgiving-chemistry.htm

5. Thanksgiving Chemistry Topics and Projects
https://www.thoughtco.com/thanksgiving-food-chemistry-609249

6. Stop! Washing your Thanksgiving turkey could spread germs
https://www.stltoday.com/news/science/stop-washing-your-thanksgiving-turkey-could-spread-germs/article_ff10db29-9977-5eb8-94a6-a37452a69330.html

7. Stop washing your Thanksgiving turkey! It could spread germs, say food safety experts
https://www.wivb.com/news/whats-trending/stop-washing-your-thanksgiving-turkey-it-could-spread-germs-say-food-safety-experts/

Read a science based article.  Learn how Science is happening in our daily lives and how it relates to you. You can get your information from a newspaper, magazine or from the internet. 
It should be handwritten NEATLY or typed and shared with my pconsidine@pershing220.org account.  

 Follow these simple steps to make an A!
1) Summarize the article in 5-7 sentences (i.e. What is the article about?)
2) How does this affect us? (1 sentence min.)
3) Why is this important? (1 sentence min.)
4) How is this science related? (1 sentence min.)
5) Pick a science word and write its definition.  Use a dictionary or www.dictionary.com
6) Draw a picture!
7) Make sure to include your source.  i.e. Where did you get your information from?  website url, magazine title and date, newspaper title and date





Sunday, November 24, 2019

C3 - Videos

1.Watch the video and take the review quiz; record your results in your Science Notebooks.
 https://www.brainpop.com/technology/simplemachines/inclinedplane/
2. Watch the video and take the review quiz; record your results in your Science Notebooks.
https://www.brainpop.com/science/motionsforcesandtime/work/
3. Inclined Plane cartoon


4. Gravity, Force, and Work video

5. Force, Work, and Energy Cartoon

6. The Fixies Friction cartoon





Thursday, November 21, 2019

LAB #4 – Simple Machines Help Us

LAB #4 – Simple Machines Help Us Investigation

Investigation: What are the motions that each simple machine makes in order to make work easier?   


Materials: various simple and compound machines

Procedure: <Discuss the procedure with your partners.>

Results:
Name of the object

Purpose of the object
What kind of simple machine/s is it?
Draw a picture of the object
1. Plastic drink top




2. chemistry tongs (2)




3. fan blades




4. scissors (2)




5. pie pan




6. blinds




7. spray bottle (2)




8. microscope




9. clip on clipboard




10. flashlight




11. staple remover (2)




12. arms on the clock




13. nails (on wall)




14. screw (in wall)




15. stairs




16. spray bottle




17. triple beam balance (3)




18. crazy coaster track




19. cabinet drawer track




20. wheel on push cart




21. soup spoon




22. skeleton hand




23. 




24.




25.




26.




27.




28.




29.




30.










Analysis:
1) How do simple machines make our lives easier?
                 
2) Pick three of the objects from the lab and explain how it would be like without them?  How would you accomplish the tasks they help us with without them?

3) Go to your data table and label the fulcrum for each of your levers.
                  
4) Find three simple machines at home and add them to your Results.

5) a. Sketch a picture of each simple machine; use arrows to show the motion of each.  
    b. How does each simple machine change the direction, distance, or magnitude of a force?

Conclusion


 What was your objective?
 What was your procedure?   
 What did you learn in this lab?
 What did you like about this lab?
 What were some challenges you had to deal with?
 What could you do next with this investigation? What other tests could you perform?
If you had to change or add anything to the investigation, what would they be?
 Write down any other additional thoughts, observations, inferences, etc.

Monday, November 18, 2019

Lab #3 – Calculating Work

Lab #3 – Calculating Work

Work = Force x distance
Work = (Force)(Distance)
W = Fd

Problem
How can we use a ramp to help us pull a weight up to a certain height with the least amount of work possible?


Hypothesis: If I use a ramp to pull the weight up to the SAME height (distance), then....   harder? easier?  no difference?   and this is my reasoning....

Materials
Ruler, chair, ramp (inclined plane), weights, spring scale

Procedure

Results
A.  Work done without ramp
Object
Force (Newtons)
Distance (cm)
Work (Joules)
a. __g Weight
__N
__cm
___J
b. __g Weight



c. __g Weight



d. __g Weight




Calculate the average work done without a ramp: _____Joules

B.  Work done with ramp
Object
Force (Newtons)
Distance (cm)
Work (Joules)
a. __g Weight
 N
cm 
b. __g Weight



c. __g Weight



d. __g Weight




Calculate the average work down using a ramp:
_____Joules

 
ANALYSIS
1)   Make a bar graph titled, "Bar graph comparing work done without a ramp vs work done with a ramp".
x axis: 2 bars = no ramp vs ramp
y axis: average amount of work done in Joules

2)   How did the weight (force pulling down) affect the amount of work done on the object?

3) a.Where does your data indicate that using a simple machine (inclined plane) makes work easier, using a ramp or no ramp?
    b. Which saves you energy, using a ladder or using the stairs?  Use evidence from your results!!!

4)   Part 1 (A,B): What is your Independent Variable?
5)   Part 1 (A,B): What is your Dependent Variable?
6)   Part 1 (A,B): What are your Constants?

Conclusion
 Restate the problem in your own words.
 My hypothesis (is/is not supported) because__________________________.
Briefly describe your procedure i.e. what were the steps you took to complete the investigation?  (Think of a following a recipe when you cook!)
If I had the opportunity to complete this lab again, I would change _________ because________________
 What did you learn in this lab?
 What did you like about this lab?
 What were some challenges you had to deal with?  My sources of error for the lab were _____________because____________. 
 What could you do next with this problem?  What other tests could you perform?
 Write down any other additional thoughts, observations, inferences, etc.

http://mrconsidinescience.blogspot.com/


Make another Hypothesis: Use your hands to feel the sandpaper.  Will the sandpaper cause more work, less work or no change to be done on the weights? 

C.  Work done with ­­­­sandpaper and ramp
Object
Force (Newtons)
Distance (cm)
Work (Joules)

a. __ g Weight



b. __ g Weight



c. __ g Weight



d. __ g Weight




 
 
Calculate the average work done using a different surface: _____Joules

7)   Part 2 (B,C): What is your Independent Variable?
8)   Part 2 (B,C): What is your Dependent Variable?
9)   Part 2 (B,C): What are you Constants?
10) Make a bar graph titled, "Bar graph comparing work done with ramp surface vs work done with sandpaper"
x axis: 2 bars = ramp surface vs sandpaper
y axis: average amount of work done in Joules