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In this seventh-grade science task, students will experience opportunities in wildlife research so that they may discover connections between the species in their area as well as the biosphere. Throughout this unit, the students will gain experiences and skills to discover how the food web is intricately interwoven. They will apply this knowledge to develop connections in the communities of an ecosystem.
After independently conducting their what is creative composition in photography, students will develop a presentation to demonstrate the connections they discover between two chosen species. Connecting Chains of Life is a science unit that allows students to discover relationships among species by exploring wildlife research.
Connecting Chains of Life also integrates scientific research with mathematics—specifically statistics. For example, students will use data collection skills and analysis to examine trends in wildlife study. Después de realizar de manera independiente su estudio, los estudiantes van a desarrollar una presentación para demostrar las relaciones que descubrieron entre dos especies seleccionadas. Esta guía conecta la unidad Conectando cadenas de vida con los Conocimientos y destrezas esenciales de Texas TEKS para los estudiantes de séptimo grado.
Conectando cadenas de vida es una unidad de ciencias que permite a los estudiantes descubrir relaciones entre especies mediante la exploración de investigaciones sobre la fauna silvestre. El siguiente documento incluye los TEKS correspondientes y los detalles de la unidad Conectando cadenas de vida. Photos can be obtained at the following websites: The Red Knot is a migrating shore bird. A keystone species is a species which is crucial to the survival of other species in an ecosystem.
Without the keystone species, the ecosystem would be dramatically different or non-existent. Horseshoe crabs are keystone species in the Delaware Bay area, especially for the Red Knot birds that migrate through this area and obtain valuable protein from eating the crab eggs, helping them complete their migration successfully. Students will then be arranged in small groups. The students will make a what is food chain give an example class 7 list of how they think these two species may affect each other in allotted time period.
The lists will be displayed in the room for discussion. This is a documentary by PBS and is a wonderful background into how species affect each other. The video is 50 minutes long. If there is not enough time in class, this video can be do eating disorders cause memory loss to be watched by students at home.
Students will need a journal to what is food chain give an example class 7 their learning in this task. Students will write a reflection on the video in their journals. Students will also include what is food chain give an example class 7 their journal essential vocabulary found in Part IV of Handout B needed for understanding. Students will review how the Red Knot bird had a long migration route to find food for survival transition.
Students will then observe another creature that has a long migration route and depends on other species—the Monarch Butterfly. Students will observe a live specimen of a Monarch Butterfly Danaus plexippus and a sample of a milkweed plant. Discuss with students the safety of handling a live specimen. Students will observe and sketch the insect and plant in their journal. A milkweed plant may be obtained at a local nursery. Background Information: Dr. Fred A. Urquhart—with the help of his wife, Norah—spent his entire year career studying Monarch Butterflies and their migration.
Being from Canada, as a boy he wondered where the butterflies would go when summer was what is food chain give an example class 7. He eventually developed a plan that including tagging and monitoring the species. Much of what we know today is based on his work. This contributes to the biodiversity of an ecoregion. Several organizations have developed programs to encourage education on this species.
The students will next partake in the quail necropsy project offered by the Texas Wildlife Association to build a background on the biology of the Northern Bobwhite quail. Note: The TQI can be used as an example of how scientists collect data to use for a research study. The study follows the scientific method by starting with a question. TEST: Scientists use dummy nest to check for predation, call counts to collect data on population, habitat evaluations, etc.
To better understand how wildlife biologists collect data for study, students will conduct a call count, set up a dummy nest directions under video resources on the TQI siteor set up a game camera. Students will organize the data collections to report results to class. If quail are not available, students may do what is food chain give an example class 7 population count of another bird species found in the local area to practice these skills.
This can be done as a class or in groups to practice the scientific investigation skills needed for an individual project later. Handout B. During these informal presentations, the teacher will check for understanding of the important vocabulary needed for food webs what is food chain give an example class 7 clear up any misunderstandings or misconceptions. Note: Correlation between one species and another species in a food chain is tested at the eighth-grade level on the STAAR test.
The student will write a hypothesis about the relationship connection that will answer the research question. Safety: Before students conduct any investigations, the teacher will need to approve all projects and make sure that the collection process follows safety protocols. The student communicates what he or she has learned through what is fundamental in physics of the following methods of communication:.
Additionally, self- or peer-assessments based on the rubric may be developed that students could use to evaluate their products. As an extension, students may want to explore displaying the species of their project in an art form, such as a watercolor painting, sculpture, or other creative means of display. Students may further extend study by researching the endangered species of his or her local area.
A manera de extensión, los estudiantes pueden querer mostrar las especies de su proyecto en forma artística, como una pintura en acuarela, una escultura u otra expresión creativa. Description of What is food chain give an example class 7 In this seventh-grade science task, students will experience opportunities in wildlife research so that they may discover connections between the species in their area as well as the biosphere.
Phase I. Learning Experiences Students will view a photo of both the Red Knot bird Calidris canutus and the Horseshoe Crab Limulus polyphemus and then give a brief description and background of each. Discuss the following questions: When making your list, what information did you need about each species e.
Which species is the keystone species in the ecosystem and why? The Horseshoe crab is keystone because its eggs provide a vital food source for the Red Knot bird on its long migration. What data would a wildlife biologist need to study these species e. How would the biologist set up the data to be useful for study e. Where they went during the winter. What problem arose during his study of the migration that he solved? Attaching the tags to the butterflies and getting them to stick.
What data why wont my sony smart tv connect to the internet collected in his research? What is the describe mathematical system of Monarch sightings. How was he able to collect so much data?
What plant did he discover is the only plant on which Monarchs will lay their eggs?? Milkweed—Monarch caterpillars hatch and eat the toxic milkweed with no ill effect. What state do the eastern Monarchs pass through to get to Mexico? One group makes an outside circle facing to the center. The other group makes an inside circle facing to the participants on the outside circle. The teacher has students answer one question to their face what do you mean by toxic person and discuss for a period of 1—2 minutes.
Next, the teacher will have the inside circle rotate to obtain a new partner for the next question. Students will write a reflection in their journals about the Monarch butterfly and the connection with the Milkweed plant. See Handout A found at end of this unit. How do quail fit into a food web of species for the prairie?
Show how the data were collected and organized. Phase II. Independent Research A. Research process Selecting a topic. Students may use Handout C to organize project details. Asking guiding questions. What is the correlation between the populations of species A and species B? If species B is modified in some wayhow will that affect species A? Is species B on what is food chain give an example class 7 migration route of species A? If so, what would happen if species B disappeared? What trend s do you notice in the populations of species A and B?
Designing and submitting a research proposal. A plan to develop the procedure to test or collect data about the relationship. Resources to be used including any safety procedures to be followed. After teacher approval, the student will independently conduct the investigation and then what is food chain give an example class 7 and prepare the data for analysis. Adjustments may need to be made during the investigation that will be addressed as the project progresses. The product Each student will show what he or she has learned through one of the following written products.
The video should clearly explain any statistical data as well as the relationship between the two species. The student is encouraged to be creative in reporting the results of the scientific investigation.