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Fourth Grade Science Fair Project Ideas

Building off of what they learned in 3rd grade, 4th graders add a new level of sophistication to their 4th grade science projects. In addition to describing data quantitatively, kids begin to use their observations to formulate scientific arguments and engage in scientific debate. 4th grade science fair projects may involve kids going beyond testing a hypothesis—young scientists can be encouraged to use their results to make predictions about what might happen when the experiment is expanded to test new variables. Education.com's selection of fourth grade science fair project ideas are carefully written with 4th graders in mind, giving them the tools they need to effectively learn about the world around them by pursuing the answers to their questions in a methodical way.

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This light bulb science project includes step-by-step instructions for testing the heat from different light bulbs.
Fourth Grade
Science Fair Project Ideas
Collect meteorite dust with a magnet in your very own backyard!  The objective of this science fair project is to gather meteorite dust to study outer space.
Fourth Grade
Science Fair Project Ideas
Vitamin C boosts your immune system and your health.  The purpose of this science fair project is to determine which fruit juices have the most Vitamin C.
Fourth Grade
Science Fair Project Ideas
The purpose of this science fair project is to investigate the reliability of eye witness reports.
Fourth Grade
Science Fair Project Ideas
The purpose of this science fair project is to determine how accurate and precise dart players are.
Fourth Grade
Science Fair Project Ideas
The purpose of this science fair project is to demonstrate how yeast, a fungus, causes bread to rise.
Fourth Grade
Science Fair Project Ideas
The purpose of this science fair project is to determine which brands of batteries last the longest.
Fourth Grade
Science Fair Project Ideas
Prove that the Earth is not flat. The objective of this science fair project is to measure the angle of the sun and calculate the circumference of the Earth.
Fourth Grade
Science Fair Project Ideas
The purpose of this science fair project is to investigate how dark and light colors absorb heat differently.
Fourth Grade
Science Fair Project Ideas
Stories change as you retell them. The objective of this science fair project is to demonstrate how information gets interpreted, distorted and changed.
Fourth Grade
Science Fair Project Ideas
The purpose of this science fair project is to determine whether it takes more force to move an object over a smooth surface or a rough surface.
Fourth Grade
Science Fair Project Ideas
The purpose of this science fair project is to determine whether a mordant causes natural dye be brighter or longer lasting.
Fourth Grade
Science Fair Project Ideas
The purpose of this science fair project is to determine which household products are acids or bases.
Fourth Grade
Science Fair Project Ideas

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