Jump to main content

Scratch, Electricity & Electronics Science Projects (95 results)

Search
Refine Results
Filter by
Coding Projects
Sort by
How Much Current Does It Take To Blow Up An LED?
Science Fair Project Idea
Scientific Method
Have you ever accidentally burned out an LED while building a circuit? What about doing it on purpose—for science, of course! In this science project, you will intentionally send too much current through LEDs to see if they will burn out or even explode! How much current does it take to destroy an LED? How does this compare to the LED's rated current value? Try this project and find out! Check out this page for more LED science projects. Read more
Which Materials are the Best Conductors?
Science Fair Project Idea
Scientific Method
Electricity powers many of the devices we use every day, from lights to video games and computers. Engineers have to use certain materials to make electrical devices work. In this experiment, you will find out which materials let electricity flow through them (conductors) and which ones prevent electricity from flowing through them (insulators). Read more
Paper Circuits: Make Electrifying Art
Science Fair Project Idea
Scientific Method
"Paper circuits" are a fun way to mix electronics and art by adding lights directly to a painting or drawing. These lights need a battery to power them, and typically you would use wires to connect them. In paper circuits, though, many materials can be substituted as "wire," including special types of paint, ink, and even aluminum foil. There are also different options for what type of battery you can use. Which materials do you think will work best? Try this project to find out! Read more
Monitor Plant Health with a Color Sensor
Science Fair Project Idea
Engineering Design Process
Do you have a garden or houseplants? What about living on or a near a farm? How often do you check your plants' leaves for discoloration? What if you could build a robot to check for you, and warn you if your plants are getting sick? In this project you will learn to use a color sensor to identify different colors on leaves, which can give you a warning about problems like pests, diseases, or nutrient deficiency. Get ready to automate your gardening! Read more
Rubbing Up Against Static Electricity
Science Fair Project Idea
Scientific Method
A tried and true balloon activity is to rub a balloon on your head to make your hair stand up. How does the rubbing build up static electricity? Do this experiment to see if the number of rubs makes a difference. Read more
Build Your Own Super-sensitive Electric Field Detector
Science Fair Project Idea
Scientific Method
Wouldn't it be nice to avoid those nasty electric shocks you get after you have walked around on carpet and then touch a doorknob? These shocks are caused by static electricity. In this project, you will build a super-sensitive charge detector to investigate the electric fields created by static electricity. The detector can sense invisible electric fields before you touch something and get zapped, so try this project to avoid the shock of shocks! Read more
Program a Sound Level Meter to Help Protect Your Hearing
Science Fair Project Idea
Engineering Design Process
Have you ever said, "That hurt my ears!" when someone yelled loudly right next to you? Do you cover your ears when a fire truck drives by with the sirens blaring? It is good to protect your ears—even sounds that do not "hurt" can cause hearing damage if you are exposed to them for too long. In this project, you will program a device that alerts you when sounds have exceeded safe levels long enough to cause hearing damage. Read more
Make an Automatic Evaporative Cooling System
Science Fair Project Idea
Engineering Design Process
You probably know that sweat helps cool your skin on a hot day because of evaporation. But do you think you can use evaporation to cool a building? Evaporative cooling systems could provide a more environmentally-friendly alternative to traditional air conditioning. In this engineering project you will build and try to optimize your own model evaporative cooling system. Read more
Design Your Own Smart LED Lighting System
Science Fair Project Idea
Engineering Design Process
Have you ever had lights turn on automatically when you walked into a room? Have you turned on a light with your voice instead of a switch? Maybe you have even seen lights that change color depending on temperature, ambient sounds, or how close you are to something. In this project you will design and build your own smart LED lighting system that can change colors and react to various things in the room. The possibilities are endless! Check out this page for more LED science projects. Read more
Build a Model Planetary Lander with Arduino
Science Fair Project Idea
Engineering Design Process
Imagine that you need to make sure valuable cargo — like a robot or even human astronauts — can land safely on Mars. How would you do it? In this project, you will build your own model planetary lander using an Arduino. It will use a distance sensor and automatically deploy landing gear before impact. Can you avoid a crash landing? Read more
< 1 2 3 4 5 ... 10 >

Explore Our Science Videos

Quick Links X
Top
Free science fair projects.