Show:
Ideas and Inventions
Rubbings
Carbon Printing
Chromotography
Reflecting
100
What do inventions always start from?
an idea
100
What two things do rubbings help us see?
textures and patterns
100
What type of fingerprint pattern is this? Show paper #4
arch
100
Are all marker made with the same color pigments?
no
100
What is symmetry?
both sides are exactly the same
200
Which one of these techniques helps us see things that we can't usually see?
rubbings, carbon printing, chromotography, or all of these
200
What type of leaf pattern is this? Show paper #1
palmate
200
What type of fingerprint pattern is this? Show paper #5
loop
200
Describe the paper chromotography process?
get filter paper, draw a line with marker, put filter paper in water, and watch the water separate the pigments in the marker
200
How many lines of symmetry does this circle have?
multiple or infinite
300
If I wanted to see the texture of a leaf, what technique would I use?
rubbings
300
Which one of the following could describe the rubbing of a piece of sandpaper?
smooth, hard, or bumpy
300
If I have one fingerprint in front of me, can I tell whose finger made the print without doing any more carbon prints?
no
300
What is the water moving through paper called?
wicking
300
****Daily Double**** Draw this object and its line(s) of symmetry. Give two ways you could prove they are lines of symmetry. Show paper #9
400
Name the two parts of a leaf.
veins and edge
400
****Daily Double**** Which two leaves came from the same tree? Give two reasons how you know. Show paper #3
The veins (venation pattern) is different on the leaves. The way the veins meet in the middle is different. Those from the same tree meet and they do not on the other leaf.
400
What is the black material from your pencil called?
carbon
400
Paper chromotography separates the ___________in markers?
pigments
400
What do we see when we look in a mirror?
an image
500
Are any two finger prints alike?
no
500
What type of leaf pattern is this? Show paper #2
parrallel
500
What type of fingerprint pattern is this? Show paper #6
whorl
500
If I had a chromatogram and 2 red markers, how could I figure out which marker was used to make the chromatogram?
Make a chromatogram of each of the red markers. (Get filter paper, draw a line with marker, put edge of filter paper in water, and watch the water separate the pigments in the marker.) *Then compare the chromatograms to see which marker had matching pigments.
500
What is it called when light bounces off an object?
reflection