Last updated: 7/11/2025

2nd Grade Science Trimester 3

Third Trimester

March-June

Interdependent Relationships in Ecosystems

K-2 Engineering Design

(1)	S.2.LS.2.1	Students who demonstrate understanding can plan and conduct an investigation to determine if plants need sunlight and water to grow.
(1)	S.2.LS.2.2	Students who demonstrate understanding can develop a simple model that illustrates how plants and animals depend on each other for survival.
(1)	S.2.LS.4.1	Students who demonstrate understanding can make observations of plants and animals to compare the diversity of life in different habitats.
(1)	S.K-2.ETS.1.1	Students who demonstrate understanding can ask questions, make observations, and gather information about a situation people want to change to define a simple problem that can be solved through the development of a new or improved object or tool.
(1)	S.K-2.ETS.1.2	Students who demonstrate understanding can develop a simple sketch, drawing, or physical model to illustrate how the shape of an object helps it function as needed to solve a given problem.
(1)	S.K-2.ETS.1.3	Students who demonstrate understanding can analyze data from tests of two objects designed to solve the same problem to compare the strengths and weaknesses of how each performs.

What are the things that plants need to grow?

What are some ways that plants are important in our lives?

How do animals depend on plants or other animals for food?

Why do some plants depend on animals for pollination and for dispersal of seeds?

What kinds of things do wild animals need to survive?

Can you identify the plants and animals that live in different habitats?

What is biodiversity?

In this module, students learn about biodiversity, the diversity of life in habitats. Students observe different habitats and the living things that grow in the different environments. They engage in different scenarios to learn the importance of having many different organisms in a habitat. Living things are impacted negatively when there is a lack of diversity.

After students establish an understanding of the importance of biodiversity, they focus on plants. They investigate how much water and sunlight plants need to grow in an environment. Incorporating the knowledge and skills gained throughout the module, they use the design process to design a planter garden to grow in a specific environment.