Grade 2

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Plan and conduct an investigation to describe and classify different kinds of materials by their observable properties.2-PS1-1

Planning and Carrying Out Investigations - Plan and conduct an investigation collaboratively in order to produce data to serve as the basis for evidence to answer a question.2-SEPS1-1

Structure and Properties of Matter - Different kinds of matter exist and many of them can be either solid or liquid, depending on temperature. Matter can be described and classified by its observable properties.2-DCI.PS1.A1

Patterns - Patterns in the natural and human-designed world can be observed.2-CC.PS1-1

Analyze data obtained from testing different materials to determine which materials have the properties that are best suited for an intended purpose.2-PS1-2

Analyzing and Interpreting Data - Analyze data from tests of an object or tool to determine if it works as intended.2-SEPS1-2

Structure and Properties of Matter - Different properties are suited to different purposes.2-DCI.PS1.A2

Cause and Effect - Simple tests can be designed to gather evidence to support or refute student ideas about causes.2-CC.PS1-2

Make observations to construct an evidence-based account of how an object made of a small set of pieces can be disassembled and made into a new object.2-PS1-3

Constructing Explanations and Designing Solutions - Make observations (firsthand or from media) to construct an evidence-based account for natural phenomena.2-SEPS1-3

Structure and Properties of Matter - Different properties are suited to different purposes. A great variety of objects can be built up from a small set of pieces.2-DCI.PS1.A3

Energy and Matter - Objects may break into smaller pieces and be put together into larger pieces, or they may change shape.2-CC.PS1-3

Construct an argument with evidence that some changes caused by heating or cooling can be reversed and some cannot.2-PS1-4

Engaging in Argument from Evidence - Construct an argument with evidence to support a claim.2-SEPS1-4

Chemical Reactions - Heating or cooling a substance may cause changes that can be observed. Sometimes these changes are reversible, and sometimes they are not.2-DCI.PS1.B4

Cause and Effect - Events have causes that generate observable patterns.2-CC.PS1-4

Plan and conduct an investigation to determine if plants need sunlight and water to grow.2-LS2-1

Planning and Carrying Out Investigations - Plan and conduct an investigation collaboratively in order to produce data to serve as the basis for evidence to answer a question.2-SEPLS2-1

Interdependent Relationships in Ecosystems - Plants depend on water and light to grow.2-DCI.LS2.A1

Cause and Effect - Events have causes that generate observable patterns.2-CC.LS2-1

Develop a simple model that mimics the function of an animal in dispersing seeds or pollinating plants.2-LS2-2

Developing and Using Models - Develop a simple model based on evidence to represent a proposed object or tool.2-SEPLS2-2

Interdependent Relationships in Ecosystems - Plants depend on animals for pollination or to move their seeds around.2-DCI.LS2.A2

Developing Possible Solutions - Designs can be conveyed through sketches, drawings, or physical models. These representations are useful in communicating ideas for a problem's solutions to other people.2-DCI.ETS1.B2

Structure and Function - The shape and stability of structures of natural and designed objects are related to their function(s).2-CC.LS2-2

Make observations of plants and animals to compare the diversity of life in different habitats.2-LS4-1

Planning and Carrying Out Investigations - Make observations (firsthand or from media) to collect data that can be used to make comparisons.2-SEPLS4-1

Biodiversity and Humans - There are many different kinds of living things in any area, and they exist in different places on land and in water.2-DCI.LS4.D1

Patterns - Patterns in the natural world can be observed.2-CC.LS4-1

Use information from several sources to provide evidence that Earth events can occur quickly or slowly.2-ESS1-1

Constructing Explanations and Designing Solutions - Make observations from several sources to construct an evidence-based account for natural phenomena.2-SEPESS1-1

The History of Planet Earth - Some events happen very quickly; others occur very slowly, over a time period much longer than one can observe.2-DCI.ESS1.C1

Stability and Change - Things may change slowly or rapidly.2-CC.ESS1-1

Compare multiple solutions designed to slow or prevent wind or water from changing the shape of the land.2-ESS2-1

Constructing Explanations and Designing Solutions - Compare multiple solutions to a problem.2-SEPESS2-1

Earth Materials and Systems - Wind and water can change the shape of the land.2-DCI.ESS2.A1

Optimizing the Design Solution - Because there is always more than one possible solution to a problem, it is useful to compare and test designs.2-DCI.ETS2.C1

Stability and Change - Things may change slowly or rapidly.2-CC.ESS2-1

Develop a model to represent the shapes and kinds of land and bodies of water in an area.2-ESS2-2

Developing and Using Models - Develop a model to represent patterns in the natural world.2-SEPESS1-2

Plate Tectonics and Large-Scale System Interactions - Maps show where things are located. One can map the shapes and kinds of land and water in any area.2-DCI.ESS2.B2

Patterns - Patterns in the natural world can be observed.2-CC.ESS2-2

Obtain information to identify where water is found on Earth and that it can be solid or liquid.2-ESS2-3

Obtaining, Evaluating, and Communicating Information - Obtain information using various texts, text features (e.g., headings, tables of contents, glossaries, electronic menus, icons), and other media that will be useful in answering a scientific question.2-SEPESS2-3

The Roles of Water in Earth's Surface Processes - Water is found in oceans, rivers, lakes, and ponds. Water exists as solid ice and in liquid form.2-DCI.ESS2.C3

Patterns - Patterns in the natural world can be observed.2-CC.ESS2-3