Search: Biology/Life Science
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|Sarracenia flower dissection: Image courtexy of Noah Elhardt
||Leopard frog in duckweed: Image courtesy of Steven Dunlop
To learn about the structure and function of living things, it is essential to explore the anatomy of real organisms up close and personal. While much can be accomplished by studying living things and their life cycles (see Raising Plants and Raising Trout projects), dissections offer a view of the internal structures and how they contribute to the whole. What follows are resources and information for teachers interested in conducting a flower and/or frog dissection. There are many excellent lesson plans and dissection guides on the web already. Rather than recreate these resources here, My Science Box provides nitty-gritty logistics and resources such as a selected list of great web resources, how to order frogs, what equipment you need, student handouts, and teaching strategies.
Submitted by irene on Mon, 2006-07-31 14:48.
- Flowers, possibly of several different species for cross-species comparisons. Almost any flower may be used although the anatomy is more easily distinguished in some flowers than others. Some common flowers with clearly differentiated parts include:Sarracenia flower dissection: Image courtexy of Noah Elhardt
- Wisconsin fast plant
- Paper plates/plastic trays
- Scissors or razor blade (to open the ovary)
- Hand lens
- Optional: tweezers
- Optional: dissecting scope
Submitted by irene on Mon, 2006-07-31 15:03.
- Frogs (order them from Carolina Biological catalog # 22-7444, 22-7445, 22-7446, 22-7464, 22-7465, 22-7466, between $3.35 - $5.95 depending on the quantity ordered and whether there is any color injection)
- Paper plate or dissection tray
- Scalpel or razor blade
- Optional: dissection probes
- Optional: dissection pins (especially useful if you have dissection trays on which to use them)
Submitted by irene on Mon, 2006-07-31 15:15.
To study the life cycle and structure of plants, students grow plants from seed, fertilize them, and collect seed, starting the process over again. With the right growing conditions, almost any plant can be grown successfully in the classroom – native plants for a restoration project, vegetables, cut flowers, etc. The instructions provided here are for growing Wisconsin Fast Plants since they are the most widely used species in classrooms across America. These plants have been artificially selected to grow well in small spaces, with indoor lighting, with little soil, and with an exceedingly short life cycle (14-20 days to flower and 21-40 days to set seed). Therefore, they are incredibly well adapted to survive in classroom conditions as well as participate in multi-generational studies such as plant life cycle studies, Mendelian crosses and artificial trait selection. However, the light boxes and terraqua columns lend themselves to growing virtually any
Submitted by irene on Wed, 2006-08-02 08:26.
Raising trout from eggs to fry in the classroom is a fabulous way for students to observe and study the life cycle of vertebrates and simultaneously learn about threatened species in local watersheds. Many states have programs where teachers and students raise trout in their classrooms in partnership with the Department of Fish and Wildlife for later release into a designated lake, creek or river. Described here is information for teachers on how to partner with state agencies, fish hatcheries, and local fly-fisher groups to raise rainbow trout in the classroom. A worksheet for the trout release field trip is provided. Best of all, many Trout in the Classroom Programs are fully supported by local fly-fisher groups and the California Department of Fish and Game (such as the California program that I participated in), and thus there is no materials cost to the teacher beyond the costs of organizing the trout release field trip at the end of the project.
Submitted by irene on Thu, 2006-08-03 08:45.
Submitted by trinlett on Sat, 2006-12-09 14:57.
When I suddenly fall ill, or otherwise don't want to take 10 hours to plan a sub lesson, I usually go online to http://puzzlemaker.school.discovery.com/ and plug in some vocab words for some puzzles (they have some pre-made banks of words also!)
I make four puzzles using the exact same list of words. I usually start them with the word search (even non-readers can do this!) then go on to word scramble, then crossword. This because they need to know the words pretty well by the time they get to the crossword - also, the word search has the word bank on it.
Submitted by csgreen on Sat, 2007-03-10 20:05.
Please click "Add Child Page" to recommend videos to show in a science classroom. Please include the following info: (and attach study guide please if you have it!)
- Distributor (PBS, National Geographic, etc.)
- Where found (Berkeley Unified Digital Library, Explo Library, Blockbuster, Netflix, Etc.)
- Science Concept Targeted (DNA ethics, volcanoes, Bad Science)
Submitted by csgreen on Sat, 2007-03-10 20:16.
"Osmosis Jones" is a Warner Bros. Cartoon that follows the attack on a disease on a live action man (Bill Murray).
Grade level: Middle School, although probably suitable for integrated science class in high school as well.
Concepts: Diseases, human body systems
Found: Sometimes Blockbuster or other video stores will have it. I found it for $4 at a used bookstore!
Submitted by csgreen on Sun, 2007-03-11 15:17.
A great list by subject for videos, including worksheets! The Super Size Me worksheet even has before AND after questions.
Submitted by csgreen on Sun, 2007-03-11 16:02.