SCIENTIFIC DRAWINGS
apex lamina
Criteria for scientific drawings Use a very sharp pencil for drawing
2
Make lines clean, even and continuous
3
Drawing should be large and two dimensional
vein
4
The drawing must be correctly proportioned
5
Label-lines must be drawn to one side of the diagram
midrib (contains main vein)
6
Draw label-lines using a ruler - straight and not crossed and ending at an even distance from the drawing The labels written at the end of each label-line are either done in all capital letters or all common (lower case) letters. Labels may be annotated where appropriate
8
Give your drawing a title
9
Magnification must be calculated using the formula
10
length of drawing Magnification = length of specimen
The magnification must be recorded next to the title of the drawing as Mag Ă— (value from calculations)
Drawing Title Label
1
7
Key Terms:
margin
Magnification
Drawing laboratory apparatus
petiole (attaches leaf blade to the stem) DIAGRAM SHOWING THE EXTERNAL STRUCTURE OF A LEAF magniďŹ cation = length of drawing length of specimen = 25.7 cm 14.2 cm = 1.80
Annotating Diagrams: Annotations are brief notes that are added to explain, clarify, and to highlight a structural function or describe a structure.
www.macmillan-caribbean.com I S B N 978-1-380-03807-4
9
781380 038074
ISJ Poster A1 landscape_v2.indd 1
/macmillancaribbean @MacCaribbean
31/10/2018 09:34