Life Science

Grade 6 Science Curriculum

Unit of Study: LIFE
Suggested Time: 8 Weeks

 

Content Standard 6.2 An ecosystem is composed of all the populations that are living in a certain space and the physical factors with which they interact.

  • Populations in ecosystems are affected by biotic factors, such as other populations, and abiotic factors, such as soil and water supply.
  • Populations in ecosystems can be categorized as producers, consumers and decomposers of organic matter.
Essential Question: How do matter and energy flow through ecosystems?

 

Focus Question #1 What are abiotic (non-living) and biotic (living) factors in the environment?

Expected performances (C4) The student will be able to:

a. identify abiotic factors. (Ex: temperature, water, sunlight, soil, etc.)

b. identify biotic factors. (Ex: plants, animals, bacteria, fungi, etc.)

Required Activities:

  1. Use informational text to learn about biotic and abiotic factors. C4a, b Environmental Science pgs. 7-8 (Teachers – see All-In-One Resource for graphic organizers and reading strategies to help students make meaning of text – pgs. 47-48)
  2. Label a magazine picture for biotic and abiotic factors then infer how living things are dependent on the non-living things. C4a, b “What’s in the Scene?” Environmental Science p. 6

Optional Activities:

  1. Investigate how organisms survive in a closed ecosystem. C4a, b “A World in a Bottle” Environmental Science p. 12 (CINQ. 3, 9)

Assessment:

Given a picture, students will identify biotic and abiotic factors in an ecosystem. C4a, b (Teachers may use All-In-One resource pg. 52, questions 1 and 2.)

 

Focus Question #2 How do plants make food and what factors affect this process?

Expected performances (C4) The student will be able to:

a. explain how water, sunlight and carbon dioxide are used by plants to create their own food in the process of photosynthesis.

b. describe how abiotic factors affect the ability of plants to create their own food.

Required Activities:

  1. Research the process of photosynthesis. C4a Sciencesaurus p. 107, Environments Foss Science Stories, The Producers (Newbridge), classroom text set
  2. Investigate what happens when you change the patterns of a plant’s light source. C4b “Lights Out!” from Newton’s Apple Teacher’s Guide (see Appendix) (CINQ. 3, 4, 5, 8, 9)
  3. Student-designed investigation: Students predict how different abiotic conditions (light, temperature, water, soil, oxygen) will affect plant growth by designing an investigation to test one of these predictions, and explain how this factor affects the process of photosynthesis. C4b (CINQ. 1, 3, 4, 5, 6, 7, 8, 9, 10)

Optional Activities:

none

Assessment:

Students will complete a flow chart/graphic organizer on the process of photosynthesis. C4a

Analysis and Conclusion of student-designed investigation from required activity #3. C4b

Focus Question #3 What roles do different organisms have in an ecosystem?

Expected performances (C5) The student will be able to:

a. describe the relationship between organisms, species, populations, communities.

b. explain the make up of an ecosystem (biotic and abiotic factors).

c. describe the differences between producers, consumers, and decomposers (fungi/bacteria) and explain the energy role each plays in an ecosystem.

d. illustrate a food chain (include arrows that show the flow of energy, from the bottom up).

e. illustrate a food web.

f. explain the difference between a predator and a prey.

g. explain how populations are affected by predator/prey relationships.

Required Activities:

  1. Use informational text to learn about levels of organization in an ecosystem. C5a, b Environmental Science pgs. 9-20 (Teachers – see All-In-One Resource for graphic organizers and reading strategies to help students make meaning of text – pgs. 47-48)
  2. Use informational text to describe the differences between producers, consumers, decomposers, food chains and food webs. C5c Environmental Science pgs. 42-47 (Teachers – see All-In-One Resource for graphic organizers and reading strategies to help students make meaning of text – pgs. 109-112) Students may also refer to classroom text set.
  3. Use informational text to determine predator/prey relationships and use graphs to analyze predator/prey interactions. C5f, g Environmental Science pgs. 26-29 including “Math Analyzing Data” p. 27 (Teachers – see All-In-One Resource p. 68 for additional graphs to analyze predator/prey relationships. (CINQ. 6)
  4. Dissect owl pellets, collect data on types of animals eaten and graph results. Create a food web poster using the evidence from their owl pellets and knowledge of food webs. C5c, d, e “Mystery Pellets” Picture-Perfect Science Lessons: Using Children’s Books to Guide Inquiry pgs. 115-131 (CINQ. 3, 5, 6, 7, 9, 10)

Optional Activities:

  1. Students investigate the factors influencing changes in population size through interactive technology. Go Online Active Art Web: www.PHschool.com code cep-5012 C5g
  2. Students play a game to show understanding of the concepts of food chains and food webs and how energy flows through these chains. C5c, d, e “Food Chain Game” Long Island Sound in a Jar pgs. 26-27

Assessment:

Food Web poster from “Mystery Pellets” activity. Students demonstrate understanding of relationships among producers, consumers and the sun, including proper placement of energy flow arrows. Picture Perfect Science Lessons p. 122 “Evaluate” C5c, d, e Rubric to be developed

Given a graph showing a predator/prey relationship, students will interpret and explain reasons why an increase in the predator population causes a decrease in prey population. “Analyzing Interactions Among Organisms” p. 69, All-In-One Resource C5g

 

Focus Question #4 What are different kinds of ecosystems in Connecticut? [biome (land ecosystem) – deciduous forest, aquatic (water-based ecosystem) – stream/river, pond/lake, estuary, tidal pool, marsh (inter-tidal zone)]

Expected performances (C6) The student will be able to:

a. identify the different kinds of ecosystems in Connecticut.

b. compare and contrast two Connecticut Ecosystems.

c. describe common food webs in the different Connecticut ecosystems.

Required Activities:

  1. Use informational text (including interpreting maps) to identify biomes and aquatic ecosystems in Connecticut. C6a Environmental Science, pgs. 58-73 (Teachers – see All-In-One Resource for graphic organizers and reading strategies to help students make meaning of text – pgs. 128-133, 138-142) Students may also use classroom text set.
  2. FIELD STUDY: Students engage in a field study (to be developed) at Bluff Point, Denison Pequotsepos Nature Center, Project Oceanology, or various areas of Ledyard, to gather data on ecosystems in Connecticut, with a focus on food webs within these ecosystems. Students will use field guides to identify organisms. Ca, b, c “Ecosystem Food Chains” Environmental Science All-In-One Resource pgs. 149-151. Also refer to Long Island Sound in a Jar “Collecting Life in Water” pgs. 31-36.
  3. Performance task provided by SDE (tbd).

Optional Activities:

  1. Related activities from Long Island Sound in a Jar

Assessment:

Using at least six organisms from a Connecticut ecosystem, the student will create diagrams of both a food chain and a food web that correctly shows the flow of energy. (This may be done using computers.) C6c.

Resources Needed:

Student:

Environmental Sciences , Prentice Hall

Sciencesaurus: A Student Handbook , Gr. 6-8 Great Source

Life in the Woodlands

The Producers , Newbridge

Bugs and Slugs , Waterford Press

Marine Animals of Southern New England and New York by Howard Weiss

Amphibians and Reptiles in Connecticut by Michael Klemens

Pond Watcher’s Guide to Ponds and Vernal Pools of Eastern Connecticut

Connecticut Wildlife – Biodiversity, Natural History and Conservation by Geoffrey A. Hammerson

A Field Guide to Your Own Backyard by John Mitchell

Living Treasures – The Plants and Animals of Long Island Sound by Lisa Wahle and Nancy Balcom

Animal Lives: The Barn Owl by Sally Tagholm ISBN 0-7534-5606-0

Butternut Hollow Pond by Brian J. Heinz ISBN 0-7613-1325-7

Teacher Resources:

Long Island Sound in a Jar by Heather Crawford, Connecticut Sea Grant

Picture Perfect Science Lessons by Karen Ansberry & Emily Morgan, NSTA Institute

Bluff Point/Barn Island/Denison Pequotsepos Nature Center, 109 Pequotsepos Road, P. O. Box 122, Mystic, CT 06355, e-mail contact: [email protected]

Internet Resources:

http://www.seagrant.uconn.edu/publ.htm#mared (The Connecticut Sea Grant College Program, University of Connecticut, 1080 Shennecossett Road, Groton, CT 06340-6048

CURRICULUM CONNECTIONS:

Mathematics: Interpreting multiple line graphs. Data collections, organization of data

Language Arts: Written and oral communication to present information. Reading comprehension strategies: making sense of science content

Art: Poster creation

Social Studies: Map reading

Technology: Use on online resources for research, online web-art

 

Bold face indicates CORE expected performances to be assessed by CMT

Ledyard Public Schools
Revised 5/26/05
Approved by Instructional Council May 20, 2005