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Classic Science Fair Projects for Elementary School

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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.

These classic science fair projects are perfect science fair projects for elementary school! Find everything from moldy bread to a potato battery and more! Easy elementary science fair projects and classic science projects are just what you need to win the school science fair!

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?

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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.

These classic science fair projects are perfect science fair projects for elementary school! Find everything from moldy bread to a potato battery and more! Easy elementary science fair projects and classic science projects are just what you need to win the school science fair!

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

You’ll want to have these supplies for making the perfect science fair presentation! This post contains affiliate links.

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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.

Learning with dinosaurs is so much fun. Use this science experiment to learn about salt crystals using dinosaurs! The dinosaur salt crystal science experiment is a fun learning activity for preschoolers and kindergarten. #dinosaurs #handsonlearning #scienceexperiments #preschoolactivities

Salt Crystal Dinosaurs Science Experiment

Take slime to the next level! Make volcano slime that really erupts using these easy directions for making dinosaur volcano slime! This volcano slime recipe uses fluffy slime and is perfect for setting up volcano science experiments at a science fair! Make slime educational! #slimerecipes #slime #slimer #scienceexperiments

Slime Erupting Volcano

Looking for an easy science experiment with dramatic results? The bread mold experiment requires few supplies and is easy for kids of all ages!
Of all the simple science projects we've made, we absolutely love this one using salt to cover feathers with crystals. So pretty for any time of year!

Bread Mold Science Fair Project

Salt Crystals Science Fair Project

Love cows? Then you will love this free unit study all about a cow's digestive system and animal nutrition!

Digestive System Science Fair Projects

Looking for fun STEM activities for kids? Cornstarch quicksand is easy to make and teaches an interesting science lesson at the same time.

Quicksand Science Fair Project

Want an easy and educational activity? Turning a penny green is a fun science experiment that kids of all ages enjoy! Turning pennies green is a classic science activity where kids learn how to oxidize a penny quickly. #scienceexperiment #stemactivities #stem #science

Penny Science Fair Project

If you want easy science experiments, look no further than these Ivory soap science experiments. This classic science experiment is perfect summer science.

Ivory Soap Science Fair Project

Learn about science with a tornado in a jar! This tornado in a jar lesson plan is so easy and an excellent way to learn about centripetal force and makes an excellent tornado science project. Use our tornado in a jar worksheet to complete the glitter tornado science activity! #stemactivities #scienceexperimentsforkids #science #stem

Tornado Science Fair Projects for Kids

Looking for an easy way to teach continental drift and hands-on plate tectonics? You will love this simple and tasty earth science demonstration using cake!

Plate Tectonics Science Fair Projects

Kids will love this wacky science experiment! Hot ice is a novelty any time of year. Learn the no-fail way for how to make hot ice here!

Hot Ice Science Fair Project

These 31 days of STEM activities for kids will keep them learning and having fun. The volcano science experiment is a favorite!

Baking Soda Volcano Science Fair Project

Keep warm in the winter with these hands on winter sensory activities for kids! Preschoolers and kindergarten kids will love these educational winter activities.

How to Make Frost Science Fair Project

Seed Sprouting Science Fair Project

Want a super-easy science demonstration for static electricity? This static electricity for kids experiment is easy and fun for kids of all ages.

Static Electricity Science Fair Project

Want an easy way to teach kids how clouds form? This simple science experiment for kids is the perfect "wow" demonstration.

Cloud in a Cup Science Fair Project

Have you ever wondered how fish swim in the water? This diving fish science experiment shows children just how fish are able to move through the water.

Diving Fish Science Experiment

Liquid Density Science Experiment

Halloween science activities are a fun way to introduce science. This "brain surgery" experiment is a twist on the leak proof bag science experiment.

Leak Proof Bag Science Fair Experiment

Kids bored this summer? Why not keep them occupied with easy and fun STEM activities for kids like this science experiment for making butter?

Butter Making Science Fair Experiment

Kids will love making their very own walking rainbow from just three colors. This amazing walking rainbow experiment is the most fun walking water experiment ever! You'll have a blast with the rainbow walking water. #scienceexperiment #science #stemactivities #science

Walking Water Science Fair Project

Kids will love this rainbow variation on the classic naked eggs experiment. Don't just make naked rubber eggs, make rainbow rubber eggs!

Naked Egg Science Experiment

Love Easter? Love science? You won't want to miss this fun Easter lava lamp science experiment for kids! Kids will love the bright spring colors and it's a fun way to explore chemical reaction science with young kids using lava lamp technology! #easteractivities #easter #scienceexperiments #science

Lava Lamp Science Project

Soil Science Activity 

In this water science for kids activity, we investigated how saltwater fish survive in the ocean and made our own water distiller and desalinized saltwater.

Remove Salt from Water Experiment

elementary stem challenge cards

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