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In this blog post, we will highlight 10 EASY and engaging STEM science fair projects that can be completed with minimal supplies and deliver impressive results.

Science fairs provide the perfect platform for students to explore their curiosity, nurture their scientific thinking, and showcase their creativity. When it comes to STEM (Science, Technology, Engineering, and Mathematics) activities, science fair projects offer a valuable opportunity for students to engage in hands-on learning.

Looking for more ideas and/or ideas for older kids? Check out this post Science Fair Project Ideas: 50 Fascinating Ideas!

10 EASY Science Fair Projects for kids with links and videos to get you started!

1. Easy Science Fair Projects: Sink or Float

Explore the concept of buoyancy by conducting an experiment to determine which objects sink and which float in water. Students can gather a variety of objects from around their home or classroom and hypothesize whether each object will sink or float for this easy science fair project. They can record their observations and analyze the results to understand the science behind buoyancy. This project promotes critical thinking, data analysis, and the scientific method. Try this sink or float experiment from Science Sparks.

2. Balloon Rocket

Create a simple balloon-powered rocket to demonstrate the core principles of physics and engineering. Students can design and construct a rocket using a balloon, a string, and a straw. By inflating the balloon and releasing the air, they can observe how the rocket moves forward due to the force of the escaping air. This project encourages creativity, problem-solving, and an understanding of Newton’s third law of motion. Check out this balloon rocket project from

3. Solar Oven

Introduce students to renewable energy and the power of the sun by building a solar oven as an easy science fair project. With a cardboard box, aluminum foil, plastic wrap, and black construction paper, students can construct a simple oven that uses solar energy to cook food. This project engages students in engineering, heat transfer, and environmental science while emphasizing the importance of sustainable energy sources. SciShow Kids shows you how to make a solar oven here!

4. Easy Science Fair Projects: Gumdrop Structures

Challenge students’ engineering skills by designing and constructing sturdy structures using toothpicks and gumdrops. Students can explore different architectural shapes, such as triangles and squares, and construct structures like bridges, towers, or even geodesic domes. This project promotes creativity, problem-solving, and an understanding of structural stability and engineering principles. Little Bins for Little Hands shows us how to make gumdrop structures here.

5. Plant Growth and Light

Investigate the impact of different types and intensities of light on plant growth in this easy science fair project. Students can set up multiple plant containers, each exposed to a different light source, such as sunlight, artificial light, or even colored filters. They can measure and compare the plant’s growth over time, documenting their observations and drawing conclusions about the role of light in photosynthesis. This project encourages scientific inquiry, data collection, and analysis. Investigate how different colors of light affect plant growth with this project from

6. Dancing Raisins

Observe the movement of raisins in carbonated water and explain why it happens. Place a few raisins in a clear glass of carbonated water and observe how they start to dance. Explain the science behind it. Fun Learning for Kids can show you how to get started with dancing raisins on this blog post.

7. Homemade Volcano

Create a mini volcanic eruption and explain the chemical reaction behind it for this classic and easy science fair project. Build a volcano-shaped structure using paper mache or clay. In a small container inside the volcano, combine baking soda, vinegar, dish soap, and food coloring to create a foaming eruption. Science Fun can help you get started with your volcano here.

8. Easy Science Fair Projects: Eggshell Geode

Create beautiful crystal-like structures inside an eggshell and learn about crystal formation. Dissolve alum powder in hot water and add food coloring. Pour the solution into an empty eggshell and leave it undisturbed for a few days. Observe the crystal formation inside the eggshell. Science Bob shows you how to create your eggshell geodes here.

9. Lemon Battery

Create a simple battery using a lemon and understand the concept of battery voltage. Insert a zinc nail and a copper coin into the lemon. Connect the LED light bulb to the coin and nail. Observe the bulb illuminating and explain the flow of electricity. John Hopkins Center for Talented Youth shows you step-by-step how to create a lemon battery here.

10. DIY Lava Lamp

Not only is this easy science fair project entertaining, but it also encourages children to think critically and problem-solve as they explore the science behind the lava lamp. They can also document their observations and discuss their findings, fostering communication and analytical skills. So, grab some materials and get ready to ignite your child’s curiosity with this exciting STEM project! DIY Mama shows you how to get started creating your own lava lamps here.

Easy STEM & Science Fair Projects

STEM activities provide an enriching and engaging way for students to develop their scientific, technological, engineering, and mathematical skills. These easy and exciting science fair projects allow students to explore fundamental scientific concepts while fostering critical thinking, problem-solving, and creativity.

By participating in these hands-on experiments, students not only expand their understanding of STEM subjects but also gain valuable experience in the scientific method and project-based learning. So, let the scientific exploration begin and have a successful STEM-focused science fair!

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