Science Buddies
How to Fade an LED with Arduino analogWrite
Learn how to fade an LED connected to an Arduino pulse width modulation (PWM) pin using the analogWrite command. Visit the Science Buddies website for cool science projects you can do with an Arduino:...
Science Buddies
How to Use a Potentiometer with Arduino analogRead
Learn how to use a potentiometer with one of the Arduino's analog input pins and the analogRead function. Visit the Science Buddies website for cool science projects you can do with an Arduino:...
Science Buddies
How to Find the Center of Mass of (almost) Any 2D Shape | STEM Activity
Learn how to find the center of mass of a 2D paper shape using just a few simple materials! Written instructions are available on the Science Buddies website:...
Science Buddies
Make a Battery with Coins | Science Experiment
Make a battery with pennies, nickels, salt, and vinegar in this fun science experiment! This type of battery is also called a voltaic pile. You can use a multimeter to measure the voltage and current produced by your battery, and even...
Science Buddies
Fire-Fighting Foam
Fires need fuel, oxygen, and heat to burn. So, what happens if one of these ingredients is taken away? In this video, we will show how you can extinguish a flame using a chemical reaction. Can you find out what makes the flame go out?...
Science Buddies
The Wagon Wheel Effect | Optical Illusion Science Experiment
Have you ever seen a video where it looked like a car's wheels or a helicopter's blades were spinning backwards? This optical illusion is called the wagon wheel effect, named after old movies where it looked like wagon wheels were...
Science Buddies
PING Ultrasonic Distance Sensor and Arduino
Learn how to the PING))) ultrasonic distance sensor from Parallax, also called a sonar sensor, with an Arduino to measure the distance to a target object. Visit the Science Buddies website for cool science projects you can do with an...
Science Buddies
How to Measure Voltage with a Multimeter
This video shows how to measure DC voltage with a manual-ranging multimeter.
Science Buddies
How to Measure Current with a Multimeter
This video shows how to measure DC current with a manual-ranging multimeter.
Science Buddies
HC-SR04 Ultrasonic Distance Sensor and Arduino
Learn how to use the HC-SR04 ultrasonic distance sensor, also called a sonar sensor, to measure the distance to a nearby object using an Arduino. Visit the Science Buddies website for cool science projects you can do with an Arduino:...
Science Buddies
How to Measure Resistance with a Multimeter
This video shows how to measure resistance with a manual-ranging multimeter.
Science Buddies
Multimeter Tip: Using Alligator Clips
This video shows how to use alligator clips to keep your hands free when taking measurements with a multimeter.
Science Buddies
Model Artificial Pancreas Science Project
This video is a walk-through of the "Dealing with Diabetes: The Road to Developing an Artificial Pancreas" project at Science Buddies:...
Science Buddies
Control a Positional Servo Motor with an Arduino
Learn how to use the Arduino servo library to control a positional servo motor in this video. Visit the the Science Buddies website for cool science projects you can do with an Arduino:...
Science Buddies
Ping Pong Pickup Challenge | 2023 Science Buddies Engineering Challenge
Can you build a tool to retrieve a ping pong ball from as far away as possible, using nothing but paper, string, tape, and paper clips? Give it a try and enter your design in the 2023 Science Buddies Engineering Challenge for a chance to...
Science Buddies
Continuous Rotation Servo Motors and Arduino
Learn how to use the Arduino servo library to control a continuous rotation servo motor in this video. See the Science Buddies website for cool science projects you can do with an Arduino:...
Science Buddies
Salt Water Battery Science Project
Learn how to make a working battery with salt water and how you can use it for a science experiment! A kit with the parts for this project is available here: https://www.homesciencetools.com/product/potato-battery-science-kit/?aff=SB1....
Science Buddies
DIY Wind Turbine Science Experiment
This video shows how to build your own wind turbine using household materials and how you can use it for a science project. Written instructions, including a complete materials list, are available on the Science Buddies website:...
Science Buddies
Make a Robotic Hand with Straws
Design your own robotic hand for a science or engineering project! This video provides an overview of how you can make a basic hand or gripper using straws and string. For full science project instructions, visit our website:...
Science Buddies
Simple Color Detection Circuit
Written instructions for this color detection circuit science project, including a parts list and circuit diagram, are available on the Science Buddies website:...
Science Buddies
Simple Soil Moisture Sensor Circuit
Build a simple soil moisture sensor (no programming required) that you can use for a science project. The sensor also works as a water level detector. Complete written instructions, including a parts list, can be found here:...
Science Buddies
Arduino Breathing Monitor
Parts list, circuit diagram, and code: https://www.sciencebuddies.org/science-fair-projects/project-ideas/HumBio_p055/human-biology-health/train-belly-breathing
Science Buddies
The Phone Book Friction Experiment (with sticky notes)
As seen on Mythbusters - you can try this experiment yourself with sticky notes! For a version you can do (safely) at home, see the written instructions on our site: https://www.sciencebuddies.org/stem-activities/notepad-friction
Science Buddies
How to Make Your Own Bath Bombs
Follow this recipe to make your own homemade bath bombs and use them for a science experiment! Written instructions for how to use bath bombs for a science experiment are available on our website at...