Sunday, September 18, 2011

Day 7 - Scientific Methods

Warmup: How could we find out what is inside a product/ food we use but don't have the label?

(13) Scientific Methods Notes - We took Cornell Notes about how scientists think and use evidence to support any explanation they create. Focus Question: How do scientists know an explanation is a good one?

(12) Chromatography Lab -

  • Research question: Are markers made of only one color dye/ chemical?
  • Hypothesis: [What do you think is the answer to the research question and why?]
  • Materials:
    • Filter Paper Strips
    • Markers
    • Cup
    • Water
  • Procedure: 
    • Draw a dot on the strip of filter paper 1 cm above the bottom
    • let the bottom of the filter paper touch the water
    • Allow the water to soak up the paper through capillary action until it is close to the top
    • Observe the ink move up and separate
  • Results: [create a data table and illustration of your results]
  • Conclusion [Did the results support/ not support your hypothesis?]
Through this lab we found many markers are made with a mix of different dyes and colors. 

No comments:

Post a Comment