Search for Science Fair Projects

1000 Science Fair Projects with Complete Instructions

General Physics Science Fair Project

Nuclear Reaction Demonstration

Nuclear Reaction Demonstration | Science Fair Projects | STEM Projects
Have you ever wondered how a nuclear reaction works? In this project, you'll set up a domino chain reaction and use a ruler to control it, just like a nuclear reactor.


The hypothesis is that a ruler can be used to control a domino chain reaction, just like a control rod in a nuclear reactor.

Method & Materials

You will arrange dominos in a pattern and knock over the first domino. Then, you will use a ruler to control the chain reaction.
You will need a bunch of dominos, a ruler, and a flat table that doesn't shake.


The experiment showed that a ruler can be used to control a domino chain reaction, just like a control rod in a nuclear reactor. The observation that stands out is that not all the dominos fell over when the ruler was used.

Why do this project?

This science project is interesting and unique because it demonstrates a nuclear reaction using simple materials.

Also Consider

Experiment variations to consider include using different materials to control the chain reaction, such as a book or a block of wood, or using different patterns of dominos.

Full project details

You can find additional information and details for this science fair project here. Have fun exploring!

Related videos

Hey there! Here are some awesome videos about this science project that we think you'll really like. They're not only super fun, but they'll also help you learn more about the science behind the project. So sit back, relax, and get ready to have some fun!!
Share this Science Project:

Related Science Fair Project Ideas

Cooling Cars with Sunshades
Hot cars can be cooled down with sunshades! Find out which type of sunshade works best in this science project.
Hydroelectric Power
Learn how to use water pressure to make electricity with this fun science project!
Exploring Air
Let's explore air and find out what it's like and where it's found!
Share this Science Project: