Science Experiments

Posts Tagged ‘biology’

Question: Why was there boiled liver in our digestion experiment in science?

In science, we did an experiment on enzymes, we where given 3 boiling tubes with H2O2 in them and a few drops of washing up liquid, we were instructed to put a small piece of raw liver in one boiling tube, one small piece of boiled liver in a boiling tube, and a small piece of carrot into the last, we then had to observe for 5 minutes or so and measure how tall the bubbles were in each tube, the raw liver got the tallest bubbles, But then our teacher asked us all why there was boiled liver in this experiment, and know one could answer.

So i was wondering, why is there boiled liver in our experiment?

Answer: raw liver has catalase ,which degrades H2O2 to form oxygen(the bubbles you see)
the boiled liver serves as a control,the catalase has denatured,so no bubbles.
carrots also have catalase.you would also get the same result with crushed beans.

!!Peristalsis!!

Question: What are the best plants to use in a science Project?

I am doing a science experiment for highschool biology , and I was wondering what was a fast growing plant that flowers and grows tall in a short matter of time that would give accurate results.Thank you

Answer: I say use any type of bean seed.
Bean plants are good as beginner plants, and flower pretty quickly if the temperature is right.

marine biology science experiment

Question: I am a high school junior and need a science research project?

I am in all honors classes and the science research class gets college credits so i need something good even if you can just think of a problem or question that i do an experiment? anything original? my proposal is due on friday. thanks everyone!

Answer: Science Fair Projects

Science Fair Project Resource Guide

http://www.ipl.org/div/projectguide/

http://www.usc.edu/CSSF/Resources/GettingStarted.html

For all levels. There are hundreds of Projects.

http://www.freesciencefairproject.com/

http://www.scienceproject.com/

http://www.kathimitchell.com/scifair.htm

http://www.selah.k12.wa.us/SOAR/SciProj2004/index.htm

http://collaboratory.nunet.net/timber/scifair/2proj.htm

http://www.all-science-fair-projects.com/

http://www.sciencebuddies.org/

http://scienceclub.org/scifair.html

http://www.kathimitchell.com/cells.html

http://scitoys.com/

http://www.sciencetoymaker.org/

•Hundreds of free science fair projects are categorized under the following topics.
•Click on any of the topics below to view the science projects.
•You can then sort the projects alphabetically or by their level of difficulty.

http://www.stemnet.nf.ca/sciencefairs/intermed.html

http://lkwdpl.org/schools/emerson/sciencefair/

http://www.energyquest.ca.gov/projects/index.html

http://www.homeworkspot.com/sciencefair/

http://www.hallbar.com/sciencecenter.html

http://www.sciencenewsforkids.org/

Tips for Success

http://www.sciencebuddies.org/mentoring/project_tips.shtml

http://school.discovery.com/sciencefaircentral/scifairstudio/handbook/scientificmethod.html

Good luck.

Kevin, Liverpool, England.

College Science Experiment