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Diagrams

Diagrams. One way scientists communicate is through pictures - diagrams. Leonardo da Vinci is famous for his scientific drawings:. Flying Machine Water Lifting Device ↓. A picture is worth a thousand words. In science, a picture is worth more than that.

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Diagrams

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  1. Diagrams One way scientists communicate is through pictures - diagrams

  2. Leonardo da Vinci is famous for his scientific drawings:

  3. Flying Machine • Water Lifting Device • ↓

  4. A picture is worth a thousand words In science, a picture is worth more than that. • Many concepts would be impossible to explain without a diagram • Much quicker to communicate an idea • More engaging for visual learners

  5. Which is easier to read? This… The primary source of energy for nearly all life is the Sun. The energy in sunlight is introduced into the biosphere by a process known as photosynthesis, which occurs in plants, algae and some types of bacteria. Photosynthesis can be defined as the physio-chemical process by which photosynthetic organisms use light energy to drive the synthesis of organic compounds. The photosynthetic process depends on a set of complex protein molecules that are located in and around a highly organized membrane. Through a series of energy transducing reactions, the photosynthetic machinery transforms light energy into a stable form that can last for hundreds of millions of years. Source: http://www.life.illinois.edu/govindjee/paper/gov.html

  6. Or this?

  7. Rules for Scientific Diagrams Science is about precision and fact. Correct diagrams show exactly what is needed – No more, no less. How to draw a correct scientific diagram: • Use a very sharp lead pencil. • Print a heading at the top of the page. Underline it. • Draw a simple, side-on view of the experiment/animal/plant (the focus of your diagram). Include only the essential details (e.g. if drawing a beaker, just draw sides and base) • Print (no hand writing) all labels. Write them horizontally to the diagram and close to the relevant feature. Arrange them neatly around the drawing. Rule a straight line (no arrowheads) between the label and the feature. Labels should include purpose of feature (e.g. pouch: where immature young develop) • Rule all straight lines, including underlining headings and titles. Do not underline labels!

  8. Compare the two diagrams:

  9. The diagram on the left has many flaws: • unnecessary shading makes the image unclear • unnecessary detail is shown - e.g. three dimensional drawing of table and flask • label lines have arrowheads • labels are arranged all over the diagram and are too far away from the relevant label line • it has no title or date The diagram on the rightis correct From http://nswagtc.org.au/blogs/science-guru/1078-scientific-diagrams.html

  10. Diagram Assignment: Read the article “Surviving the Tides” Draw two correct scientific diagrams showing: • High tide • Low tide • Draw the diagram as a side-view • Even if you’re unsure what the plant or animal is draw a representation of it and label it.

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