Interesting STEM Project Ideas for Elementary Students 

In recent years, scientific education has become increasingly important for children's development. Learning scientific concepts at a young age helps us understand the world around us and may motivate us for future careers in vital sectors. In this sense, 3D printing offers a lot, and even without a printer, you can complete many easy projects. Join us and discover some of the most creative projects for your kids. In this article, we've prepared a list of interesting STEM-related projects for elementary students. All projects can be completed using a 3D printer or readily available materials. While some tasks are easy enough for children to complete (largely) alone, it is always advised that adults supervise.

1. Introduce Them to 3D Printing

One effective STEM activity that blends science, technology, engineering, and math into a practical educational process is 3D printing. It enables students to apply scientific concepts and practice engineering design by developing functional models. Dimensions and tolerances are measured, scaled, and calculated using mathematical principles. In addition to improving critical thinking and problem-solving abilities, 3D printing encourages creativity and invention in practical settings as students transform their concepts into physical products, making STEM education more engaging and accessible.

To introduce 3D printing to students, one needs a 3D printing software. There are many available, but we recommend using SelfCAD. It is an easy-to-use 3D design that comes with all the necessary resources to create both simple and complex designs. 

This user-friendly 3D design software includes all the tools needed to create both basic and complex 3D models. It also includes several learning materials, such as interactive tutorials and YouTube videos. For educators who would like to introduce 3D design to their students, SelfCAD offers 3D technology program that helps teachers introduce 3D design to kids.

2. Playdough Circuit

Start this STEM project by using playdough to create two shapes. The positive and negative ends of a 9V battery should then be connected to each form. The longer leg of the LED light should then be inserted into the same playdough shape that the positive current is connected to.

This will show how the circuit functions by turning on the LED light. Then, illustrate situations when the current flow stops by turning off the LED lights or utilizing circuit breaking. 

Engage your elementary school students in this experiment by asking them to predict whether or not the light will turn on. Once students have demonstrated an understanding of circuits, add modeling clay to your circuit as an insulator to increase its complexity. In small groups, students can design their own forms and repeat this experiment according to their grade level and the availability of supplies.

Materials Used:

• Playdough
• LED lights
• 9V battery
• Modeling clay (optional)

Cost: Low ($20 - $50)

Link: Sciencebuddies.

3. Archimedes Screw

The screw was invented by Archimedes, a Greek scientist and mathematician who lived in the third century BC. This complex system moves liquids and even some solids from lower to higher levels. The mechanism consists of a screw with a helix shape that is frequently inserted within a cylindrical tube. The liquid or solid is forced up the tube by the rotating screw.

This simple gadget that moves water upwards will astound children. To simplify this project, the author recommends using a PVC pipe and 3D-printed pieces, although blueprints for printing the entire device are also available. The project page also includes helpful videos and thorough directions.

Material Used: 

• PVC pipe
• Clear vinyl tubing
• Duct tape
• Scissors
• Containers for water 

Cost: $20 - $200

Link: Printables.

4. Printable Microscope

The world is full of amazing things all around us, but we can't see them all without the help of certain powerful lenses. Fortunately, young students may study what their eyes cannot see with the aid of this 3D printed microscope! While installing the microscope may require the assistance of an adult, once completed, it will undoubtedly keep inquisitive minds busy for hours.

The inventor claimed that the materials they utilized had a magnification of about 74x. This microscope is obviously not entirely printable. You'll also need lenses and lighting components. A complete list of the extra parts and their locations can be found on the model page, along with numerous assembly instructions for 3D printing.

Materials:

• Cardboard
• Wooden dowels
• PVC pipe
• Rulers
• Hot glue gun. 

Cost: $60

Link: Printables.

5. DIY Magnet Maze

Magnets are wonderful and provide fantastic visual demonstrations of magnetic fields. Draw a maze with starting and ending locations on a paper plate or piece of cardboard. Then, lay a paperclip at the beginning of the maze and use your magnet to guide it to the finish line.

Despite without touching the paperclip, show your students how the magnet drags it through the paper or cardboard. Using magnets of varying strengths, show students how stronger magnets can pull a paperclip from a greater distance.

Students can see you demonstrate this easy classroom project, depending on the materials available, before they design and test their own interactive magnet maze. Bonus points will be awarded to those who create the most creative mazes! 

Material Used: 

• Cardboard
• Items to decorate (crayons, pencils, markers)
• A strong magnet
• Small steel balls

Cost : $9.55

Link: Pinterest.

6. Grand Prix

If you still think that science fairs are uninteresting, think again! In this project, you will not only create your own racing vehicles, but you will also be able to place them on a sophisticated circuit and compete against each other for milliseconds, just as in a professional race. Start your championship season on this race track!

What distinguishes this project is that the automobiles are made with a 3D pen, which is where things become really exciting. As long as the car fits on the track and rolls properly, kids are free to construct whatever kind of vehicle they like. Giving children the freedom to create their own car is excellent for developing problem-solving abilities. However, the designer includes a template to help in the design process.

Making your own vehicle is only one aspect of this project. If you want something more immersive, the designer has plans to build a track with sensors to exactly time the race!

Materials Used:

• 4 segments of gutter reference Classic120
• Wood strips
• Sandpaper
• Metal angles
• Hinges
• Assorted screws
• Nuts and bolts 
• Washers.

Cost: $3.87

Link: Instructables.

7. DIY Thermometer

DIY thermometers are an excellent approach to teach children about how temperature influences the movement of molecules. Start by adding ⅓ water and ⅓ rubbing alcohol to your glass container until it is just ⅔ full. Then, use a couple of drops of food coloring to show as the thermometer increases and decreases. The straw should then be inserted into the bottle and carefully sealed with modeling clay. 

With the thermometer ready, set it in the bowl of warm water and, after a few minutes, check the straw to see where the liquid has risen. Mark the spot where the liquid in the straw has fallen after removing the thermometer and submerging it in a bowl of cold water for a few minutes.

Bring in real thermometers so that everyone can see how science is applied in the real world.

Materials Used:

• Plastic water bottle 
• Modeling clay 
• Clear plastic straw 
• Food coloring

Cost: $29.27

Link: Sciencebuddies.

8. Easy Hydraulic Lift

Your first hydraulic machine is one of the many interesting and entertaining STEM project ideas that offers lots of chances for play and experimentation. The children will gain some knowledge of physics from this experience without even recognizing it! The hydraulics here are based on the simple notion that air compresses more easily than water. Pull and squeeze your syringe pump to determine the maximum weight your machine can lift.

You simply need basic supplies, such as tape, hoses, syringes, and popsicle sticks, to build this pump; you can also 3D print the frame yourself. No costly materials are needed! There are other comparable projects on the project website that use the same premise, such as this judo-fighting robot. Teach your kids the power of hydraulics!

Materials Used:

• Two syringes
• Tubing
• Water
• Platform

Cost: $16.15

Link: Etsy.

Conclusion

STEM project ideas for elementary students play a crucial role in shaping a child's academic trajectory. These STEM projects for elementary students not only provide an engaging educational experience but also equip them to handle the difficulties of more complex STEM fields.

Let us work together to instill this love and dedication to STEM in our children by collaborating with institutions to make STEM education accessible and fun for all students.