Science Buddies' second grade science projects are the perfect way for second grade students to have fun exploring science, technology, engineering, and math (STEM). Our second grade projects are written and tested by scientists and are specifically created for use by students in the second grade. Students can choose to follow the science experiment as written or put their own spin on the project.

For a personalized list of science projects, second graders can use the Science Buddies Topic Selection Wizard. The wizard asks students to respond to a series of simple statements and then uses their answers to recommend age-appropriate projects that fit their interests.

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Lesson Plan Grade: Kindergarten-2nd
Your students have probably walked or ridden over a bridge at some point in their lives. In this engineering activity they will design and make bridges out of folded pieces of paper, and test how much weight they can hold with pennies. How does the shape of a bridge affect its strength? Let your students explore and find out with this lesson! This lesson can be expanded to a second lesson looking at how the material a bridge is made out of can change its strength; see second lesson for details. Read more
NGSS Performance Expectations:
  • K-2-ETS1-2. 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.
  • K-2-ETS1-3. Analyze data from tests of two objects designed to solve the same problem to compare the strengths and weaknesses of how each performs.
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Lesson Plan Grade: 2nd-5th
There are thousands of species of insects in our world, and each are adapted to survive in their habitat. In this activity, students will learn what an insect is and what some of their adaptations are. Then they will put their knowledge into play by "creating" an insect that is adapted to live in their assigned environment. Read more
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Lesson Plan Grade: Kindergarten-8th
Why do humans have two eyes? In this simple activity students will discover the concept of parallax and start discussing depth perception. Read more
NGSS Performance Expectations:
  • 4-LS1-1. Construct an argument that plants and animals have internal and external structures that function to support survival, growth, behavior, and reproduction. [Clarification Statement: Examples of structures could include thorns, stems, roots, colored petals, heart, stomach, lung, brain, and skin.] [Assessment Boundary: Assessment is limited to macroscopic structures within plant and animal systems.]
  • 4-LS1-2. Use a model to describe that animals receive different types of information through their senses, process the information in their brain, and respond to the information in different ways. [Clarification Statement: Emphasis is on systems of information transfer.] [Assessment Boundary: Assessment does not include the mechanisms by which the brain stores and recalls information or the mechanisms of how sensory receptors function.]
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Lesson Plan Grade: 2nd
Steel, concrete, wood—real bridges are built from many different materials. How do engineers decide which materials to use? In this activity, your students will expand on the previous paper bridges lesson plan by building and testing bridges made from different materials. Read more
NGSS Performance Expectations:
  • 2-PS1-2. Analyze data obtained from testing different materials to determine which materials have the properties that are best suited for an intended purpose.
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Lesson Plan Grade: Kindergarten-2nd
Nature is full of objects with many different shapes. Some of these shapes display obvious regularities or distinct patterns, such as stripes, waves, symmetry, or spirals. Each of these natural patterns has evolved over a very long time and serves a specific function that usually helps a plant, animal, or other organism to survive. In this lesson plan, students explore the branching pattern of trees, plants, and leaves. They will make drawings and a leaf rubbing to compare different branching… Read more
NGSS Performance Expectations:
  • K-2-ETS1-2. 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.
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Lesson Plan Grade: 2nd
When discussing material properties, most of us usually think of solid materials and material properties such as hardness, flexibility, or strength. However, liquids are characterized by distinct properties, too. Some of these properties overlap with those of solids, like density or transparency, but others are more specific to liquids. Viscosity—the resistance of a fluid to flow—and surface tension, are two examples of properties that are specifically used to characterize liquids.… Read more
NGSS Performance Expectations:
  • 2-PS1-1. Plan and conduct an investigation to describe and classify different kinds of materials by their observable properties.
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Lesson Plan Grade: 2nd
Your students might know that plants need water to survive. But how does a plant "drink" and get water from the soil all the way up to its' leaves? In this lesson plan, students will observe how plants (flowers and celery) suck up dye-stained water, which makes the petals and leaves change color! This allows students to visualize the process of how water moves through a plant. Read more
NGSS Performance Expectations:
  • 2-LS2-1. Plan and conduct an investigation to determine if plants need sunlight and water to grow.
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Lesson Plan Grade: 2nd
In this lesson, students will build three-dimensional play dough models from pictures that show various landforms and bodies of water. As they analyze and compare their different models, students will realize that there are many different types of landforms and bodies of water on Earth. Based on their play dough models, students will discuss how various landforms and bodies of water can be represented on a map. Read more
NGSS Performance Expectations:
  • 2-ESS2-2. Develop a model to represent the shapes and kinds of land and bodies of water in an area.
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Lesson Plan Grade: Kindergarten-2nd
Give your students a chance to practice their engineering skills in this fun sports-themed activity! Your motivation: You want to play a game in which you use something to hit a ball (hockey, mini golf, whiffle ball, etc.)... but you don't have any equipment. The students will need to use recycled materials (and some creativity) to build their own! Read more
NGSS Performance Expectations:
  • K-PS2-2. Analyze data to determine if a design solution works as intended to change the speed or direction of an object with a push or a pull.
  • K-2-ETS1-1. 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.
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Lesson Plan Grade: 2nd-6th
By building an edible coral polyp, students will learn the anatomy of coral and be able to explain why corals are animals, rather than plants. Read more
NGSS Performance Expectations:
  • 4-LS1-1. Construct an argument that plants and animals have internal and external structures that function to support survival, growth, behavior, and reproduction.
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