These classic science fair projects are perfect for kids in elementary school! Find everything from moldy bread to a potato battery and more!
There is something exciting about seeing your kids try classic science experiments for kids and STEM activities.
You know what will happen, but seeing your kids experience the results for the first time is a whole lot of fun! You don’t have to re-invent the wheel for your kids’ science fair projects.
These science fair projects are a classic for a reason! These elementary school science projects win awards over and over every year.

THE ULTIMATE LIST OF SCIENCE FAIR PROJECTS FOR KIDS
Try these super fun and simple classic science fair projects at the school science fair this year!
Expand on your science experiments with the free printable science experiment worksheet. It’s the perfect way to help children go through the scientific process with every science experiment they try.
More Science Experiments for Kids
Why are Elementary Science Fair Projects Important?
If your school has a science fair, it just might be optional. If it is, why should you help your kids do a science fair project? What’s the point? When families are so busy, why add the extra burden of science experiments?
Science fairs provide an amazing experience for kids to really dive into science and celebrate it, as well as learning something new about the world. In addition to the creative side of science, a science fair project is a fun way for kids to bond with other family members as they do their presentations.
As children get older, it’s more and more important for them to be able to work through a long process like a science fair project, and these science presentations are one of the first opportunities children have to bring learning to life in such a vivid way.

WHAT IS THE VALUE IN A SCIENCE FAIR PROJECT?
When kids are involved in science fair projects, their confidence soars. Kids who do science projects report greater confidence and understanding of all scientific concepts, both in what they explored and the scientific process in general.
Learning to analyze and explore data in this way also helps children approach other tasks in a logical, straightforward process which helps improve study skills and communication skills for other subjects as well.
One of the most surprising values that science fair projects bring is the ability to identify problems and work toward a solution. That is an invaluable skill that kids can use throughout life.
You may also like: STEM Activities for Kids
What Can Kids Learn with a School Science Project?
Kids learn a lot when completing a science fair project.
Of course, kids learn the basics of whatever scientific concept they are learning, plus the scientific method:
- Hypothesis
- Research
- Testing
- Variables
- Retesting
- Analyzing and Recording Data
But more than that, kids can lean additional valuable skills when completing science fair projects, including:
- Presenting an idea
- Creating a presentation
- Organizing data
- Analyzing data
- Patience and orderliness
- Working with others
- Precision and care
- Adapting to changes
- Communication skills
These skills are important far beyond the classroom!
What You Need for an Elementary School Science Fair Project
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So You Have to Do a Science Fair Project
Mythbusters Science Fair Book
The Ultimate List of Classic Science Fair Projects
You cannot go wrong trying these classic science fair projects! Your kids will love them, and they are so easy, too! You really can’t beat that.
These ideas can all be adapted to work for kids as young as in second grade all the way up to middle school. At the higher levels, fit in additional variables, make sure there is a control group, and try to solve a real problem with each experiment.
Young kids will enjoy just trying the science fair projects out for the first time.

Salt Crystal Dinosaurs Science Experiment


Bread Mold Science Fair Project
Salt Crystals Science Fair Project

Digestive System Science Fair Projects

Quicksand Science Fair Project


Ivory Soap Science Fair Project

Tornado Science Fair Projects for Kids
Plate Tectonics Science Fair Projects

Baking Soda Volcano Science Fair Project

How to Make Frost Science Fair Project

Seed Sprouting Science Fair Project

Static Electricity Science Fair Project

Cloud in a Cup Science Fair Project

Diving Fish Science Experiment

Liquid Density Science Experiment

Leak Proof Bag Science Fair Experiment

Butter Making Science Fair Experiment

Walking Water Science Fair Project




Remove Salt from Water Experiment