Chemical vs. Physical Changes

Remember:  A chemical change occurs when two or more substances combine to form a new substance.  A physical change occurs when a substance changes states of matter and there is no change in the chemical composition.

Click on the following link and test your knowledge of chemical and physical changes.  When you have completed all the questions, take a screen shot of the results and email to me.

http://vital.cs.ohiou.edu/steamwebsite/downloads/ChangeLab.swf

Discipline Survey

Please complete the following discipline survey:

https://www.surveymonkey.com/s/CYJ6HBC

Density

Remember what you learned in 6th grade about density.  The density of an object can be determined if you know the mass of the object and the volume it displaces.

To find density:  m/v

http://www.edinformatics.com/math_science/density.htm

Dichotomous Keys

Leaves:  http://nationalzoo.si.edu/Education/ConservationCentral/walk/walk4.html
Water Creatures:  http://dnr.wi.gov/org/caer/ce/eek/critter/watercritter/critterindex.htm

Sexual/Asexual Reproduction

Use the following link to play the dating game and determine the best mate for each contestant.

http://www.pbs.org/wgbh/evolution/sex/mating/index.html

Review Games

Adaptations:
http://www.harcourtschool.com/activity/animalneeds/
http://magma.nationalgeographic.com/ngexplorer/0211/games/game.cgi

Human Body:
http://www.learninggamesforkids.com/health_games_body_parts.html
http://www.bbc.co.uk/science/humanbody/body/index_interactivebody.shtml

Internal Adaptations

Internal Adaptation Poster:

Use the following websites to research your internal adaptation.

Gills:

http://encyclopedia.kids.net.au/page/gi/Gill

http://fish.mongabay.com/anatomy.htm

http://www.ehow.com/about_4595983_why-do-fish-have-gills.html

Hollow Bones:

http://en.wikipedia.org/wiki/Bird_anatomy#Skeletal_system

http://www.earthlife.net/birds/anatomy.html

Xylem in Plants:

http://www.biology4kids.com/files/plants_xylemphloem.html

http://herbarium.desu.edu/pfk/page20/page21/page21.html

Body Systems Test Review

Click on one of the following links to review for your body systems test on Friday.

Body Functions:  http://www.studystack.com/flashcards-870434
System Interactions:  http://www.studystack.com/flashcards-873358
OTher Review Questions:  http://www.studystack.com/flashcards-873380

Stem Cell Research

Use the following resources to begin your research to help you draft your persuasive letter to your congressman.  This is not a complete list of resources and you may use any other reliable source.  Remember that any opinion is valid, but you must justify it with facts.

What are stem cells?
http://encyclopedia.kids.net.au/page/st/Stem_cell
http://library.thinkquest.org/04oct/00053/cl_kids.html
http://kids.jdrf.org/index.cfm?page_id=109760
http://www.ehow.com/facts_6173359_stem-cell-kids.html

Stem Cell Research Ethics
http://stemcell.childrenshospital.org/about-stem-cells/stem-cell-research-ethics-and-policy/
http://www.experiment-resources.com/stem-cell-pros-and-cons.html
http://www.stemcellresearch.org/polisci/lesson10.pdf
http://usliberals.about.com/od/stemcellresearch/i/StemCell1_2.htm

Cell Theory

Use the following websites to conduct your research on cell theory -

Write down the three main ideas of cell theory.  Define the words Prokaryote and Eukaryote.

http://www.factmonster.com/cig/biology/cell-theory-form-function.html
http://www.kidsbiology.com/biology_basics/cells_tissues_organs/cell_history_discovery4.php
http://encyclopedia.kids.net.au/page/ce/Cell_theory

If time, read the following article and use the internet to learn more about stem cells.  Why are stem cells unique compared to other cells?  Stem cell research is a major topic of debate in the scientific community today.  See what you can find out about it and how you feel about this.

http://kids.jdrf.org/index.cfm?page_id=109760