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Third Grade Science Experiments (top 2,000 results)

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The Effects of Card Counting on a Simple Card Game
Science Fair Project Idea
Scientific Method
Do you like to play cards? Here's a project that will get you thinking about strategy in card games and help you become a better card player. Read more
The Golden Rules of Photography
Science Fair Project Idea
Scientific Method
What is it that famous photographers do to make their images so pleasing to the eye? Find out if simple rules of geometry can make you a better photographer. Read more
The Importance of Making Sure a Drug's Aim Is True
Science Fair Project Idea
Scientific Method
Scientists recently found that some small drugs can stop infection by the deadly Ebola virus in its tracks. Lab researchers found that these drugs bind to a protein that the Ebola virus uses to enter our cells, and this is how infection is prevented. However, this also means that the bound protein no longer functions in our cells. How might these drugs accidentally disrupt important biological processes in our bodies? What other proteins might these drugs bind to? In this science project,… Read more
The Leaning Tower of Pasta
Science Fair Project Idea
Scientific Method
Here's a project for a budding architect or structural engineer. Can you make a strong, lightweight tower using only uncooked spaghetti and white glue? In this project, you'll learn about materials testing and apply what you learn to building and testing structures that are both strong and light. Read more
The Milky Way and Beyond: Globular Clusters
Science Fair Project Idea
Scientific Method
Globular clusters, compact groups of about a million stars that move around together in galaxies, are among the oldest objects found in the universe. Since they are found in most galaxies and since they've been around for so long, globular clusters have a lot to tell us about what the universe looks like now and how it got that way. Is our Milky Way Galaxy just like all the other galaxies out there? What are galaxies made of? What can we learn about the universe from looking at galaxies? … Read more
The Paper Plate Hovercraft
Science Fair Project Idea
Scientific Method
You can make a very simple hovercraft with a stiff, disposable plate-a pie plate should work well-and a balloon. Glue a square of cardboard in the center of the bottom of the plate. Make a small hole through the center of both of these layers. Enlarge the hole slightly with a pencil. Push a balloon through the hole so that the opening is on the front side of the plate, and rest of the balloon sticks out from the back. Blow up the balloon, then set the plate down (balloon side up). What… Read more
The Pasta Puzzle: How Much Water is Required to Cook Pasta?
Science Fair Project Idea
Scientific Method
A plate of spaghetti, meatballs, and marinara sauce is a delicious and comforting meal. It's also an inexpensive meal, because it only costs about $12 to feed a family of four. And it's easy to make when you're on the go and need to eat a quick, but healthy dinner. Just boil a big pot of water, throw in your favorite pasta, cook for 11 minutes, drain, and top with meatballs and warm marinara sauce. Quick and cheap! But sometimes it feels like forever when you are waiting for water to boil,… Read more
The Physics of Baseball and Hit Charts
Science Fair Project Idea
Scientific Method
In baseball, coaches use hit charts to track the results of every hit each player makes, giving a measure of the player's performance. Have you ever wondered what things affect where a baseball goes when a player hits it with a bat? In this project you will set up an experiment to hit a ping pong ball in a controlled manner using a toy catapult, then learn about the physics of baseball by making your own hit chart. Read more
The Physics of Cheating in Baseball
Science Fair Project Idea
Scientific Method
Do corked bats really hit the ball further? What about other materials? Here's a project to find out. Read more
The Physics of Martial Arts
Science Fair Project Idea
Scientific Method
"Ay Yaah!" echoes across the room while a loud "thud" signals a powerful kick striking the kick bag. Sound familiar? If the discipline, precision, and power of martial arts is your bag, try this project out for size. You won't be sparring with any opponent other than a swinging kick bag, but you'll learn a few powerful lessons about the physics of efficient kicking. No black belts required; just bring your best form and work up a little sweat while you use your feet to do fun science. Read more
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