Plan and conduct an investigation to determine if plants need sunlight and water to grow. 2-LS2-1
Clarification Statement: none
Assessment Boundary: Assessment is limited to testing one variable at a time.
Develop a simple model that mimics the function of an animal in dispersing seeds or pollinating plants. 2-LS2-2
Assessment Boundary: none
Make observations of plants and animals to compare the diversity of life in different habitats. 2-LS4-1
Clarification Statement: Emphasis is on the diversity of living things in each of a variety of different habitats.
Assessment Boundary: Assessment does not include specific animal and plant names in specific habitats.
Developing and Using Models
Modeling in K–2 builds on prior experiences and progresses to include using and developing models (i.e., diagram, drawing, physical replica, diorama, dramatization, or storyboard) that represent concrete events or design solutions.
Develop a simple model based on evidence to represent a proposed object or tool. (2-LS2-2)
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.
Plan and conduct an investigation collaboratively to produce data to serve as the basis for evidence to answer a question. (2-LS2-1)
Make observations (firsthand or from media) to collect data which can be used to make comparisons. (2-LS4-1)
Science Knowledge Is Based on Empirical Evidence
Scientists look for patterns and order when making observations about the world. (2-LS4-1)
Interdependent Relationships in Ecosystems
Plants depend on water and light to grow. (2-LS2-1)
Plants depend on animals for pollination or to move their seeds around. (2-LS2-2)
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-LS4-1)
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. (secondary to 2-LS2-2)
Cause and Effect
Events have causes that generate observable patterns. (2-LS2-1)
Structure and Function
The shape and stability of structures of natural and designed objects are related to their function(s). (2-LS2-2)