MSAD #55

Grade Three Science Benchmarks

And Units

10/05

 

Classifying Life Forms

 

A.        Students will understand that there are similarities within the diversity of all living things.  Students will be able to:

 

1.         Group the same organisms in different ways using different characteristics.

 

q      Structures of Life

 

2.         Design and describe a classification system for organisms.

 

q      Structures of Life

 

3.              Describe the different living things within a given habitat.

 

q      Structures of Life

 

4.              Compare and contrast the life cycles, behavior, and structure of different organisms.

 

q      Structures of Life

Ecology

 

B.        Students will understand how living things depend on one another and on non-living aspects of the environment.  Students will be able to:

 

1.         Describe a food web and the relationships within a given ecosystem.

           

q      Structures of Life

 

2.         Explain the difference between producers (e.g., green plants), consumers (e.g., those that eat green plants), and decomposers (e.g., bacteria that break down the ÒconsumersÓ when they die, and identify examples of each.

 

q      Structures of Life

 

3.         Compare and contrast physical and living components of different biomes- i.e., regions characterized by their climate and plant life –(e.g., tundra, rain forest, ocean, desert).

 

q      Structures of life

 

4.         Investigate the connection between major living and non-living components of a local

ecosystem.

 

q      Structures of life

 

Continuity and Change

 

D.        Students will the basis for all life and that all living things change over time.  Students will be able to:

 

 

2.              Describe how fossils form.

 

q      Earth Science

 

3.              Explain how adaptations, in response to change over time, may increase a speciesÕ chances of survival.

 

q      Structures of life

 

 

Structure of Matter

 

E.        Students will understand the structure of matter and the changes it can undergo.  Students will be able to:

 

1.         Describe how the physical properties of objects sometimes change when one object chemically combines with another.

 

q      Earth Science

 

2.         Explain how matter changes in both chemical and physical ways

           

q      Earth Science

 

 

The Earth

 

F.         Students will gain knowledge about the earth and the processes that change it.  Students will be able to:

 

1.             Describe the change in position of the continents over time.

 

q      Earth Science

 

2.             Demonstrate and understanding that many things about the earth (e.g.,climate) occur in cycles that vary in length and frequency.

 

q      Earth Science

 

3.         Describe the differences among minerals, rocks, and soils.

 

q      Earth Science

 

 

 

The Universe

 

G.        Students will gain knowledge about the universe and how humans have learned about it, and about the principles upon which it operates.  Students will be able to:

 

1.              Illustrate the relative positions of the sun, moon, and planets.

 

q      Universe

     

2.              Trace the sources of the earthÕs heat and light energy to the sun.

 

q      Universe

 

3.              Describe the earthÕs rotation on its axis and its revolution around the sun.

 

q      Universe

 

4.              Explore the relationship between the earth and its moon.

 

q      Universe

 

 

 

 

Inquiry and Problem Solving

 

J.         The student will apply inquiry and problem-solving approaches in science and technology.  Students will be able to:

 

1.         Make accurate observations using appropriate tools and units of measure.

 

q      Earth Science

q      Universe

 

2.         Conduct scientific investigations:  make observations, collect and analyze data, and do experiments.

 

q      Structures of Life

q      Earth Science

q      Universe

 

3.         Use results in a purposeful way: design fair tests, make predictions based on observed

            patterns, and interpret data to make further predictions.

 

q      Structures of life

 

5.              Explain how personal bias can affect observations.

 

q      Structures of Life

q      Earth Science

 

Scientific Reasoning

 

K.        Students will learn to formulate and justify ideas and to make informed decisions  Students will be able to:

 

1.              Give alternative explanations for observed phenomena

2.               

q      Structures of Life

q      Earth Science

 

2.              Describe how feelings can distort reasoning.

 

q      Earth Science

 

3.         Draw conclusions about observations.

q      Structures of Life

 

 

4.         Use various types of evidence (e.g., logical, quantitative) to support a claim.

 

q      Structures of Life

 

5.         Demonstrate an understanding that ideas are more believable when supported by good reasons.

           

q      Structures of Life

q      Universe

q      Earth Science

 

6.              Practice and apply simple logic, intuitive thinking, and brainstorming.

 

q      Structures of Life

 

 

Communication

 

L.         Students will communicate effectively in the application of science and technology.  Students will be able to:

 

1.              Record results of experiments or activities (e.g., interviews, discussions, field work) and summarize and communicate what they learned.

 

q      Structures of Life

 

2.              Ask clarifying and extending questions.

 

q      Earth Science

q      Structures of Life

 

 

3.              Reflect on work in science and technology using such activities as discussions, journals, and self-assessment.

 

q      Earth Science

q      Structures of Life

 

4.              Make and/or use sketches, tables, graphs, physical representations, and manipulatives to explain procedures and ideas.

 

q      Structures of Life

q      Earth Science

 

5.              Gather and effectively present information, using a variety of media including computer (e.g., spreadsheets, word processing, programming, graphics, modeling)

 

q      Universe

 

7.         Function effectively in groups within various assigned roles (e.g., reader, recorder).

 

q      Structures of Life

 

 

 

Implications of Science and Technology

 

M.        Students will understand the historical, social, economical, environmental, and ethical implications of science and technology.  Students will be able to:

 

1.     Explore how cultures have found different technological solutions to deal with similar needs or problems (e.g., construction, clothing, agricultural tools and methods).

 

q      Earth Science

 

2.              Investigate and describe the role of scientists and inventors.

 

q      Universe

 

3.              Explore how technology (e.g., transportation, irrigation) has altered human settlement.

 

q      Structures of Life

 

4.              Explain practices for conservation in daily life based on a recognition that renewable and non-renewable resources have limits.

 

q      Earth Science