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Mrs. Webster's 8th Grade Science Class

Welcome to Mrs. Webster's 8th Grade Science Class
Feel free to e-mail me if you have any questions:

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Homework for October 18

Write three paragraphs about variation and the Galapagos Islands
Paragraph 1- Introduction- The history of Charles Darwin, define natural selection and variation.
Paragraph 2- supporting details-  At least three examples of organisms that demonstrate natural selection on the Galapagos Islands
Paragraph 3- Conclusion- redefine natural selection and variation and how it relates to the survival of organisms and explain why variation is important.
Page 2- List the web addresses and website names for the websites where you got your information.  Google is not a source!
Look at the following videos and go to at least two additional websites for your paper:

Homework for Wednesday 10/11/2017

Use the following categories to organize the organisms from your homework:
*Insects*  Thanks Aung!

Homework Instructions for Wednesday 9\27\17

Assignment #1-  Think of the intended benefits and unintended consequences of technology.  Write a haiku poem about the intended benefit and unintended consequence of one type of technology (ex: phones, cars, pesticides, refrigerators, etc...).
Haiku rules:
Each line must have a certain number of syllables:
1st line- 5 syllables
2nd line- 7 syllables
3rd line- 5 syllables
Cars are for driving (Intended Benefit- Good)
Cars are good transportation (Intended Benefit- Good)
But can cause bad wrecks (Unintended Consequence- Bad)
Assignment #2- Draw a Venn diagram comparing the classification system of your home to the classification system of organisms.

Example of a concept map
Use this example of a concept map to help you complete your homework:
Pretend you are a medical equipment company. Create a flyer or a brochure advertising 3 examples of assisstive and 3 examples of adaptive bioengineering technology.

2. Create a concept map for adaptive and assissitve technology.

Homework due next Wednesday

1. Ten words or less: Explain how to avoid bias
bias- when a scientist may not be completely truthful about their data, in order to make their data look better

2. Create a bumper sticker that convinces people to avoid bias.
3. Write a story explaining how you improved a pencil, pen, chair, or desk. The story must include the steps of the engineering design process and the words technology and prototype.

4. Create a mini-flyer for the new technology you created in your story.

Scientific Bias and Errors

Scientific Bias

  • Manipulating or lying about data or information in an experiment
  •  It is unfair
  • Use to influence
  • Use to sway others opinions

How to avoid bias

  • Allow others to repeat your experiments that do not have a close relationship to you such as other companies or universities

Scientific Errors

  • Mistakes made in an experiment that can change the results

In an experiment it is important to avoid scientific bias and errors to ensure that you are publishing\sharing accurate results

IV and DV Notes
 On Friday September 1st we discussed the difference between IV (independent variables) and DV (dependent variables).  Use the notes picturedto complete your homework.
1. Create 5 of your own scenarios, similar to the scenarios on the note sheet below.  Then underline the IV and circle the DV in the scenarios you created.
2.  Write a paragraph with at least 5 sentences that explains how to find the  IV and the DV in a scenario.  Use the notes to help you.
  1. Sentence 1- Write the definition for controlled experiment.
  2. Sentence 2- Write the definition for independent variable.
  3. Sentence 3- Explain how to find the independent variable.
  4. Sentence 4- Write the definition for dependent variable.
  5. Sentence 5- Explain how to find the dependent variable.

Steps of the Scientific Method

1. Make an Observation
2. Conduct Research
3. Ask a question
4. Form an hypothesis
5. Predication
6. Test it\experimentation
7. Collect data
8. Analyze Data
9. Draw a Conclusion
10. Share\Communicate Results