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Industry, Innovation and Infrastructure, Third Grade Science Projects (113 results)

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Bottle Rocket Blast Off!
Science Fair Project Idea
Scientific Method
3... 2... 1... 0— blastoff! In this science project, you will use a bottle rocket launcher to launch your own bottle rocket. You will load it with water and pressurized air, make several launches, and find out what makes your rocket soar the highest. Read more
Build a Simple Drone and Test How Much It Can Lift
Science Fair Project Idea
Scientific Method
How does weight affect a drone's speed? Is there a limit to how much weight a drone can lift? Find out with your own mini popsicle stick drone in this fun science project! Read more
Butterfly Wings: Using Nature to Learn About Flight
Science Fair Project Idea
Scientific Method
Have you ever seen butterflies fluttering around outside, gliding through the air and landing on flowers? While they are delicate and fragile, butterflies are actually excellent flyers. They are so good, in fact, that scientists at Harvard University studied butterfly wing shapes as an inspiration for building a miniature flying robot. In this science project, you will do your own version of the Harvard scientists' experiment to measure the flight performance of butterfly wings. Read more
Art Bot: Build a Wobbly Robot That Creates Art
Science Fair Project Idea
Scientific Method
Do you like drawing or painting? What if you could build a robot that creates its own art? In this project, you will create your own Art Bot, a robot with markers for "legs" that wobbles across a piece of paper, creating drawings as it moves. You can then customize your robot to change how it draws. This is a beginner-level project with no robotics experience necessary, so if you want to try building your own robot, this is a great place to start! Read more
Make a Robot Hand Using Drinking Straws
Science Fair Project Idea
Scientific Method
Imagine how cool it would be to build a robot hand that could grasp a ball or pick up a toy. In this robotics engineering project, you will learn how to use drinking straws, sewing thread, and a little glue to make a remarkably lifelike and useful robot hand. What will you design your robot hand to do? Pick up a can? Move around a ping pong ball? It is up to you! With these starting instructions, you can design any type of hand. You will simulate human finger anatomy as the basis for a… Read more
Can Cell Phones Survive a Drop Test?
Science Fair Project Idea
Engineering Design Process
Why do so many people use cell phone cases? Do cell phones really need the extra protection, or is it just because cases look fancy? In this engineering science project, you will test the durability of calculators instead of cell phones, find out if cases increase the durability of the device, and build some of your own cases that do! Read more
Parachutes: Does Size Matter?
Science Fair Project Idea
Scientific Method
How does a parachute work? Do bigger parachutes work better than smaller parachutes? Find out in this science project if the size of the parachute matters. Read more
Asteroid! Identify Space Hazards with Computer Vision
Science Fair Project Idea
Engineering Design Process
Space is a dangerous place for astronauts and spacecraft. Earth's orbit is full of potential hazards like meteoroids, space debris, and other satellites that you do not want to crash into! How do scientists detect these objects in space? If you do detect an object, how can you tell what it is? In this project you will make your own computer program that can recognize and react to three different models of objects that can be found in space. No previous programming experience is required! Read more
Ping Pong Pickup Challenge
Science Fair Project Idea
Engineering Design Process
In this engineering challenge, you will build a device that can pick up a ping pong ball from a distance and return it to a start line. The farther away the ball is, and the fewer materials you use to build your device, the higher your score. You can see how other students have tackled this and other annual Science Buddies Engineering Challenges. Read more
Archimedes Squeeze: At What Diameter Does an Aluminum Boat Sink?
Science Fair Project Idea
Scientific Method
Where do you get your best ideas? At school with your friends? When you are out for a bike ride? Over 2,200 years ago, a scientist named Archimedes got one of his best ideas when he sat down in his bath. Eureka! He went running through the streets without even bothering with his clothes. What was he so excited about? He had discovered that when objects, like his body, are placed in water, water is pushed out of the way. Have you noticed that, too? The weight of the water that is pushed out of… Read more
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