# 2-LS2-1 Ecosystems: Interactions, Energy, and Dynamics

2-LS2-1   Ecosystems: Interactions, Energy, and Dynamics

Students who demonstrate understanding can:

2-LS2-1. Plan and conduct an investigation to determine if plants need sunlight and water to grow. [Assessment Boundary: Assessment is limited to testing one variable at a time.]
The performance expectation above was developed using the following elements from the NRC document A Framework for K-12 Science Education:

## Science and Engineering Practices

### Planning and Carrying Out Investigations

Planning and carrying out investigations to answer questions or test solutions to problems in K–2 builds on prior experiences and progresses to simple investigations, based on fair tests, which provide data to support explanations or design solutions.

## Crosscutting Concepts

### Cause and Effect

Connections to other DCIs in second grade: N/A

Common Core State Standards Connections:

 W.2.7 ELA/Literacy — Participate in shared research and writing projects (e.g., read a number of books on a single topic to produce a report; record science observations). (2-LS2-1) Recall information from experiences or gather information from provided sources to answer a question. (2-LS2-1) Mathematics — Reason abstractly and quantitatively. (2-LS2-1) Model with mathematics. (2-LS2-1) Use appropriate tools strategically. (2-LS2-1)

2-LS2-1   Ecosystems: Interactions, Energy, and Dynamics

Students who demonstrate understanding can:

2-LS2-1. Plan and conduct an investigation to determine if plants need sunlight and water to grow. [Assessment Boundary: Assessment is limited to testing one variable at a time.]
The performance expectation above was developed using the following elements from the NRC document A Framework for K-12 Science Education:

## Science and Engineering Practices

### Planning and Carrying Out Investigations

Planning and carrying out investigations to answer questions or test solutions to problems in K–2 builds on prior experiences and progresses to simple investigations, based on fair tests, which provide data to support explanations or design solutions.

## Crosscutting Concepts

### Cause and Effect

Connections to other DCIs in second grade: N/A

Common Core State Standards Connections:

 W.2.7 ELA/Literacy — Participate in shared research and writing projects (e.g., read a number of books on a single topic to produce a report; record science observations). (2-LS2-1) Recall information from experiences or gather information from provided sources to answer a question. (2-LS2-1) Mathematics — Reason abstractly and quantitatively. (2-LS2-1) Model with mathematics. (2-LS2-1) Use appropriate tools strategically. (2-LS2-1)

2-LS2-1   Ecosystems: Interactions, Energy, and Dynamics

Students who demonstrate understanding can:

2-LS2-1. Plan and conduct an investigation to determine if plants need sunlight and water to grow. [Assessment Boundary: Assessment is limited to testing one variable at a time.]
The performance expectation above was developed using the following elements from the NRC document A Framework for K-12 Science Education:

## Science and Engineering Practices

### Planning and Carrying Out Investigations

Planning and carrying out investigations to answer questions or test solutions to problems in K–2 builds on prior experiences and progresses to simple investigations, based on fair tests, which provide data to support explanations or design solutions.

## Crosscutting Concepts

### Cause and Effect

Connections to other DCIs in second grade: N/A