Science -- Technology/Engineering
Curriculum Guide
Preface

Grade 2

Last Updated:  January 17, 2003

Unifying Concepts and Processes

Systems, Order, & Organization
Laws of force, motion, classification of organisms, planetary motion.

Evidence, Models, Explanation
Prediction, probability, hypotheses, models, laws.

Constancy, Change, Measurement
Rate, scale, patterns, trends, cycles.

Evolution & Equilibrium
Changes in environment, populations, ecosystems, conservation of energy, natural- and human- induced hazards.

Form & Function
Diversity and adoption of organisms, interaction of energy and matter, behavior of organisms.

Science as Inquiry

Identify questions and concepts that guide scientific investigation.

Design and conduct scientific investigation.

Use technology and mathematics to improve investigation and communication.

Formulate and revise scientific explanations and models using logic and evidence

Content

Life Science:

Characteristics of Organisms

bulletDescribe and/or record changes due to growth development of living things.
bulletClassify animals according to shared characteristics.
bulletDistinguish characteristics per group.

Life Cycles and Heredity

bulletDescribe and sequence/predict the life cycle of a mealworm or snail.
bulletRelate information about living things that can be derived from studying fossils.

Organisms and Their Environment

bulletDescribe how animals utilize their senses to interact with their environment.
bulletDescribe the seasonal changes of animals, including hibernation and migration.
bulletDiscuss an animal's interaction with a habitat.

Earth and Space Science:

Structure of the Earth System

bulletDescribe the mixture of gases that make up the air in the world around us.
bulletDemonstrate that wind is moving air.
bulletRelate temperature changes to the seasons.
bulletDescribe the effects of temperature changes on the environment.

Earth in the Solar System

bulletRelate the earth's movement through space to periodic phenomena of seasons of the year and day/night.
bulletExplore the concept of the earth's relationship to the sun.

Physical Science:

Chemistry - Properties of Matter

bulletSort objects by a combination of more than two observable properties.
bulletIdentify the characteristics of liquids, solids, and gases.
bulletClassify matter as a solid, liquid, or gas.

Physics – Motion and Forces

bulletDescribe and explain effects of a push/pull force on an object.
bulletIdentify the weight (mass) and/or volume of solids and liquids.
bulletCompare objects of various weights (masses) to predict if they will balance.
bulletDemonstrate conditions under which objects can be balanced.

Technology and Engineering:

Materials and Tools

bulletConstruct simple three-dimensional structures demonstrating safe and proper use of classroom tools and materials (e.g. glue, scissors, ruler, paper, straws, spools, etc.)

Engineering Design Process

bulletIdentify common levers and pulleys.
bulletExplain the various parts used in construction of simple machines.
bulletIdentify which simple machines are used for a specific purpose.

Science Applications

Identify a problem or design an opportunity.

Propose designs and choose between alternative solutions.

Implement a proposed solution.

Evaluate the solution and its proposed consequences.

Communicate the problem, process, and solution.

Science: Personal & Social Perspectives

Personal and community health.

Population growth.

Natural resources.

Environmental quality.

Natural- and Human-induced hazards.

History and Nature of Science

Science as Human Endeavor
Requiring reasoning, insight, energy, skill, and creativity, as well as habits of mind, i.e., intellectual honesty, tolerance of ambiguity, skepticism, and openness to new ideas.

Nature of Scientific Knowledge
Including evaluation of experiments, observations, theoretical models, proposed explanations, evidence, reasoning, and alternate conclusions.

Historical Perspectives
Including the study of famous scientists and discoveries.

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Science -- Technology/Engineering Curriculum Guide -- Grade 2

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