Saturday, June 29, 2013
Tuesday, June 25, 2013
safe wood finish
http://www.finewoodworking.com/how-to/article/food-safe-finishes.aspx
Pure tung oil. Extracted from the nut of the china wood tree. Used as a base in many blended finishes. Available from catalogs and hardware stores. Difficult to apply, requires many coats, good water-resistance.
Raw linseed oil.Pressed from flax seeds. Not to be confused with boiled linseed, which contains metallic driers. Listed as a food additive by the Food and Drug Administration (FDA). Very long curing time, good looks, low water-resistance, frequent reapplication.
Mineral oil.Although derived from petroleum, it is colorless, odorless, tasteless and entirely inert. Sold as a laxative in drug stores and as a wood finish in hardware and kitchen-supply stores. Simple to apply, low waterresistance, frequent reapplication.
Walnut oil.Pressed from the nuts of the walnut tree. Sold as a salad oil in health food stores and in large grocery stores. Walnut oil dries and won't go rancid. Easy to apply, frequent reapplication.
Beeswax.The work of the honey bee. Can be mixed with an oil to create a better-smelling, slightly more waterrepellent finish. Sold in woodworking and turning catalogs.
Carnauba wax.Derived from the Brazilian palm tree. Harder than beeswax and more water-resistant. Can be used straight on woodenware as a light protective coating or a topcoat polish. Sold in woodworking and turning catalogs.
Shellac.A secretion from the lac bug. Harvested in India. Super blond shellac in flake form is the most waterresistant variety. A film-forming finish. Sold in woodworking catalogs and hardware and art supply stores.
Pure tung oil. Extracted from the nut of the china wood tree. Used as a base in many blended finishes. Available from catalogs and hardware stores. Difficult to apply, requires many coats, good water-resistance.
Raw linseed oil.Pressed from flax seeds. Not to be confused with boiled linseed, which contains metallic driers. Listed as a food additive by the Food and Drug Administration (FDA). Very long curing time, good looks, low water-resistance, frequent reapplication.
Mineral oil.Although derived from petroleum, it is colorless, odorless, tasteless and entirely inert. Sold as a laxative in drug stores and as a wood finish in hardware and kitchen-supply stores. Simple to apply, low waterresistance, frequent reapplication.
Walnut oil.Pressed from the nuts of the walnut tree. Sold as a salad oil in health food stores and in large grocery stores. Walnut oil dries and won't go rancid. Easy to apply, frequent reapplication.
Beeswax.The work of the honey bee. Can be mixed with an oil to create a better-smelling, slightly more waterrepellent finish. Sold in woodworking and turning catalogs.
Carnauba wax.Derived from the Brazilian palm tree. Harder than beeswax and more water-resistant. Can be used straight on woodenware as a light protective coating or a topcoat polish. Sold in woodworking and turning catalogs.
Shellac.A secretion from the lac bug. Harvested in India. Super blond shellac in flake form is the most waterresistant variety. A film-forming finish. Sold in woodworking catalogs and hardware and art supply stores.
Tuesday, June 18, 2013
Middle school information
1. Nobel Middle school biotech workshop
http://www.tccbiotech.org/files/documents/websites_for_middle_school_biotech_workshop.pdf
Taylor, Tish . "Discovering DNA Structure." Access Excellence. 1994
http://www.tccbiotech.org/files/documents/websites_for_middle_school_biotech_workshop.pdf
Websites for Middle School Biotech Workshop
Module 1
Cells
http://sun.menloschool.org/~birchler/cells/
Cells Alive
http://www.cellsalive.com/
The University of Arizona Biology Project
http://www.biology.arizona.edu/
Stem Cells and Cloning -Learn Genetics University of Utah
http://learn.genetics.utah.edu/
DNAi (Go to Manipulation)
http://www.dnai.org/
Dolan DNA Learning Center Biology Animation Library
http://www.dnalc.org/ddnalc/resources/animations.html
Life Sciences at Michigan – Stem Cells
http://www.lifesciences.umich.edu/
Access Excellence
http://www.accessexcellence.org/
Lock and Key clip art
http://classroomclipart.com/cgi-bin/kids/imageFolio.cgi?search=lock&img=0&cat=&bool
=
AllRefer.com reference
Recombinant DNA
http://www.allrefer.com/pictures/s4/p0013051-genetic-engineering
Teacher Domain – Tay Sachs -
http://www.teachersdomain.org/resources/tdc02/sci/life/gen/onewrong/index.html
Booth,Denise et al. Montgomery College – Germantown Introduction to Biotechnology for Middle School Teachers (301) 353-7722
Cells Alive
http://www.cellsalive.com/mitosis.htm
Cellupedia
http://library.thinkquest.org/C004535/cell_anatomy.html
Genetics Home Reference
http://ghr.nlm.nih.gov/handbook/basics/cell
National Center for Biotechnology Information (NCBI) – A Science Primer
http://www.ncbi.nlm.nih.gov/About/primer/genetics_cell
Virtual Cell Page
http://www.ibiblio.org/virtualcell/index.htm
Cellupedia
http://library.thinkquest.org/C004535/cell_anatomy.html
Rennet for Cheese Making
http://biology.clc.uc.edu/fankhauser/Cheese/Rennet/Rennet.html
Module 2 DNA Files
DNA Extraction Virtual and Electrophoresis Lab Learn Genetics University of Utah
http://learn.genetics.utah.edu/units/biotech/index.cfm
Human Genome Project Information – Image Gallery
http://www.ornl.gov/sci/techresources/Human_Genome/education/images.s html
DNA Replication image – scroll down to image (many images available)
http://genomics.energy.gov/gallery/basic_genomics/gallery-01.html
Fingerprint E.coli
http://reconstructors.rice.edu/extra/cdc/
Cracking the Code of Life – go to Sequence Yourself
http://www.pbs.org/wgbh/nova/genome/
Putting DNA to Work -Science Museum of the National Academy of Sciences
http://www.koshland-science-museum.org/exhibitdna/index.jsp
Proteomics and Cancer Fact sheet
http://www.cancer.gov/cancertopics/factsheet/proteomicsqa
Access Excellence
http://www.accessexcellence.org/
DNA Interactive. Cold Springs Harbor laboratory 2003. 10 April 2007. http://www.dnai.org/
Learn.Genetics. The Biotechniques Virtual Laboratory. University of Utah 2007.
10 April 2007.
http://learn.genetics.utah.edu/units/biotech/index.cfm
Taylor, Tish . "Discovering DNA Structure." Access Excellence. 1994