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Sixth Grade Science Fair Project Ideas

For their 6th grade science fair projects, students begin to apply more strict experimental controls to their investigations. They'll also be aware that people have a tendency to "observe" what they expect to observe, and that good 6th grade science projects and experiments should involve taking some small but important steps to maintain objectivity. To this end, ambitious 6th graders can design their experiments to be blind studies (or even double-blind studies!). Kids will also start to think about the historical context surrounding their investigations and how their projects fit into the timeline of humanity's scientific knowledge as a whole. Scientific knowledge is always subject to modification: new discoveries can challenge existing theories, enabling us to look at old observations in whole new ways. Education.com's team of talented science writers has kept all of this in mind when developing our informationally rich and conceptually rigorous sixth grade science fair project ideas, which are sure to be a big hit with any sixth grader.

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Learn how to make a periscope with this cool engineering science fair project idea, and learn about optics to learn how a periscope works.
Sixth Grade
Engineering
The buoyant force of water explains why some objects float in water. But why do some objects sink? Find out in this physics experiment and learn about density.
Sixth Grade
Engineering
In this fun science experiment, make a balloon car and test it on different surfaces to learn about sliding friction and rolling friction.
Sixth Grade
Engineering
In this wind tunnel experiment, you'll make a wind tunnel to test lift and airflow on a model plane and explore aerodynamics and the Bernoulli Principle.
Sixth Grade
Engineering
Science fair project that determines whether algae can be made to grow by feeding it supplementary carbon dioxide.
Sixth Grade
Engineering
.Have you ever had problems with your wifi signal strength? In this experiment you will learn about how wireless signals pass through the air and solid objects.
Sixth Grade
Engineering
In this project you will observe and record changes in sunspots over several days.
Sixth Grade
Astronomy
Science fair project that demonstrates the different phases of the moon by physically representing them with construction paper and a shoebox
Sixth Grade
Astronomy
Science fair project which helps you determine your latitude by using an astrolabe, which measures the angle between the North Star and the horizon.
Sixth Grade
Astronomy
Science fair project which conducts a formal scientific investigation to evaluate different methods of melting roadway ice.
Sixth Grade
Engineering
Science fair project that determines whether windmills can be designed so that birds will not feed on them. Will they discriminate between different patterns?
Sixth Grade
Engineering
In this cool science project, model how impact craters form on the surface of the moon.
Sixth Grade
Astronomy

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