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evidence and investigation concept map (animal tracks (clues to find…
evidence and investigation concept map
animal tracks
all animals leave clues that they were there and where they left
It is easy for animal to leave tracks
it is best to find tracks after snow fall and rain
clues to find
scat
fur
nests
ribbing on trees
teeth marks on trees and sticks
browses
feathers
fingerprints
all have a different fingerprints
you can not get rid of them
fingerprint pasterns
whorl
in a loop
like that
arch
like a arch form
like that
loop
goes up and down
like that
handwriting
what to look for
slant of letters
spacing
neatness
size
pressure
how they ate joined
tire tracks
what to look for
are all tires that same
no
do all cars have the same tiers
no
do trucks have different tiers then cars
yes
fabric
questions
what tests can be used to help find the fabric
will it wrinkle
what colour is it
what does the weave look like
does the colour come out it water
how does it feel
will it stretch
possible tests
thread
flammability
strech
wrinkle
colourfastness
flame tests
does it burn / melt
is there a order
is there smoke or flame
what does it look like
soil
what makes it unique
color
texture
odour
shape and size of particles
chromatography
as a result all markers are different and have different materialises so they can or cant be changed by water.
DNA
you cant leave a room and go back in without leaving DNA
what kind of stuff have DNA
hair
skin
spit
shoos
clothes
fingerprints
personal stuff