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Elementary School, Space Exploration Science Projects (20 results)

Space exploration is an exciting and wide-ranging area. Getting into space (and back down) is hard, involving rockets and launch vehicles, satellites, spacecraft, re-entry systems, landers and rovers, robots, and orbital mechanics, not to mention hypothetical technologies like space elevators and artificial gravity. To survive and thrive in space, we must understand many additional issues such as human performance in space, the space economy, and the science of astronomical bodies.

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Science Fair Project Idea
Scientific Method
Watching a spacecraft launch is an amazing experience. It is thrilling to see it lift off and escape Earth's gravity. Did you know that it takes a chemical reaction to get a spacecraft into space? Every time you see a one blast off, you are watching chemistry at work. In this chemistry science fair project, you will also get to blast an object into the air. You will not be using the same fuel that NASA uses for the rockets that launch their spacecrafts; instead, you will use two simple… Read more
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
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Science Fair Project Idea
Engineering Design Process
Have you ever seen a waiter balance an entire tray of drinks without spilling any? How do they do it? Do you think you could build a robot waiter that can do the same thing? In this project, you will learn how to build a self-balancing robotic tray. You can incorporate the auto-leveling tray into one of our many other robotics projects, like the Bluebot or robotic arm. Read more
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
Science Fair Project Idea
Engineering Design Process
Inspired by real-world reusable rockets, in this engineering challenge, you will design and build a device to catch a falling rocket so it lands vertically. Drop the rocket from higher and higher heights to get a better score! The 2025 Science Buddies Engineering Challenge is over, but you can check out this page to see our other past engineering challenges and what this year's challenge will be! Teachers, lesson plan versions of this challenge are also available. Read more
Science Fair Project Idea
Scientific Method
What keeps a model rocket on course? How can you make sure a model rocket design is stable before you launch it? Find out in this project as you learn about center of mass, center of pressure, and their effect on a rocket's stability. Read more
New
Science Fair Project Idea
Scientific Method
Are you ever annoyed by a poor Wi-Fi signal? What about when you try to send a text message, and it just won't go through because of poor cell service? Have you ever wondered what factors affect the strength of your signal and the speed of the connection? If so, this project is for you! Read more
Science Fair Project Idea
Engineering Design Process
How do you make a spacecraft land safely on the Moon or another planet like Mars? It probably helps to know how far away the ground is so you can deploy landing gear, activate a parachute, or fire thrusters to help slow down. In this project you will build your own "lander" vehicle with a sensor that can measure distance to the ground, allowing you to program outputs like blinking lights or an audible alarm.  Read more
Science Fair Project Idea
Scientific Method
How do astronomers collect stardust? They design and build satellites that are launched into space to collect particles on specially designed panels. Satellites can be sent to orbit around an object of interest: a planet, moon, or comet. In this experiment, you can build your own mini satellite and use it to collect some pretend stellar debris. If you simulate an asteroid impact, how much stellar dust will your satellite collect? Will placing your satellite at different "orbital" distances from… Read more
Science Fair Project Idea
Engineering Design Process
How do you practice landing a spacecraft on another planet or docking it with a space station? With a spacecraft motion simulator here on Earth! In this engineering project, you will design and build your own cable-driven spacecraft motion simulator that lets you move a model spacecraft around in three-dimensional space. Read more
Science Fair Project Idea
Scientific Method
To be able to live on Mars, humans need breathable air, clean water, and nutritious food. Spacesuits can provide oxygen to breathe, ice on Mars can be a source of water, but how could we get nutritious food? Today's astronauts bring food with them. But a manned trip to Mars would require food that was either successfully grown in space or on Mars, as taking the extra weight of food for such a long time—it takes 6–9 months one way—is just too costly. In this project, you will… Read more
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Science Fair Project Idea
Scientific Method
You might not think a chip of paint could cause a lot of damage, but what if it is traveling 18,000 miles per hour? That is the reality astronauts face on the International Space Station (ISS). Learn how engineers protect the ISS from space debris in this fun science project as you build your own model spacecraft shield and conduct your own impact tests! Read more
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Free science fair projects.