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 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
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
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
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...
Science Buddies
Mini Jumping Robot: How it Works
Instructions to build this jumping robot are available on the Science Buddies website: https://www.sciencebuddies.org/science-fair-projects/project-ideas/Robotics_p047/robotics/rubber-band-jumping-robot
Science Buddies
How to Test the Strength of a Biofabric | Science Project
Biofabrics are derived from living organisms such as seaweed or bacteria and have been proposed as sustainable alternatives to conventional fabrics such as cotton or polyester. But how do these materials perform when it comes to their...
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
Bath Bomb Making Science Project
Do you love bubble baths? Then you probably love bath bombs! In this video, we show how to make your own homemade bath bombs and give you tips on how you can use them for a science experiment. Written instructions are available on our...
Science Buddies
Arduino Soil Moisture Sensor
Learn how to use resistive soil moisture sensor with an Arduino. Very useful for automatic plant watering projects! See the Science Buddies website for cool science projects you can do with an Arduino:...
Science Buddies
Make Your Own Cosmetic Face Mask
Beauty face masks promise instant skin hydration to make your skin look more radiant. But do they really increase your skin's moisture? In this video, we show you how to make your own collagen-based hydrogel face mask and how you can...
Science Buddies
The Ambiguous Cylinder Illusion
Is this shape a circle, a square, or both? The 3D printed "ambiguous cylinder" illusion by Prof. Kokichi Sugihara seems impossible. Learn how it works and how to make your own at Science Buddies:...
Science Buddies
Build a Simple Steerable Robot
This video shows how to build your own simple steerable robot with a wired remote control. This makes the circuit very easy to build for beginners. You can use a solderless breadboard for easy construction, or solder your circuit to make...
Science Buddies
How to Make an LED Temporary Tattoo – Cool Wearables
Make your own light-up LED temporary tattoo in this fun DIY activity! This is your chance to design and create your own wearable device. Written instructions and a materials list for this paper circuit project are available on the...
Science Buddies
Measure Electrolytes in Sports Drinks - Science Project
What has more electrolytes, Gatorade or orange juice? Find out in this science project as you build a circuit to measure the electrolyte content of different drinks. Science Project Kit:...
Science Buddies
How to Prepare Agar Plates for Seed Germination Experiments
This video will show you how to embed seeds in agar plates so you can conduct seed germination experiments. This process is easy and the clear agar and petri dishes allow you to easily observe the seeds as they germinate. For a science...
Science Buddies
Candy Camouflage
Have you ever wondered how predators, like wolves, lions, and hawks, are able to find their prey? And what can an animal do to stay off of a hunter's menu? To survive, some animals have developed specific camouflage tactics to fool their...
Science Buddies
How to Blink an LED with Arduino
Learn how to blink an external LED connected to an Arduino digital I/O pin using the digitalWrite command. Visit the Science Buddies website for cool science projects you can do with an Arduino:...
Science Buddies
How to Debug a Circuit
Learning how troubleshoot, or debug, your circuit when your Arduino project isn't working as expected. Visit the Science Buddies website for cool science projects you can do with an Arduino:...