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Science fair project which determines whether plants are able to get enough nutrients from different types of garbage.

This science fair project idea explores how much force is needed to move a lever at different distances from the fulcrum.

What is biodiversity? Kids will study different areas of their backyards to see which is the most diverse to learn about biodiversity and random sampling.

Invite your fifth grader to test the different rates of liquid absorption in synthetic and cotton materials, such as nylon and cotton.

Science fair project that compares the ecology of different soil samples by identifying which sample has the most invertebrates living in it.

Science fair project that examines the different types of precipitation, evaluates the density of snow and calculates the ratio of snow-to-liquid.

Soil is made up of different layers. How far down do you need to dig to find the soil horizon, or the place where bits of leaves and branches become soil?

Science fair project in which you will learn more about the natural world by preserving and identifying different animal tracks.

In this plant habitats activity, children play the role of an ecologist and take surveys of different areas to discover the best habitat for dandelions.

This activity will introduce your child to the four different components of blood and give him a fun way to visualize its properties.

This science project uses Mohsâ Hardness Test to show kids how to compare the hardness of different types of minerals.

In this fun experiment, learn about brand awareness and the influence of media on children by testing logo recognition in different age groups.

In this cool project, create a lighted, scale model of the different layers of the Sun, including the core, radiation and convection zones, and photosphere.

In this fun experiment, we'll find out how color affects heat absorption!

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

Science fair project which determines whether a person's taste in music is dictated by the key that the song is written in.

This science project teaches students about organic farming and the benefits and disadvantages of commercial plant food.

Does skin thickness really decrease fruit spoilage? Find out in this science fair project idea!

The purpose of this study is to determine if people can tell the difference between organic and conventional food from looking at, smelling and tasting it.

This science fair project idea discovers whether there are some objects that do not fall at a constant rate.

In this science fair project, students examine under what conditions individual plants release seeds and how far the seeds are released.

What heats up fasterâwater or soil? 5th grade students test the specific heat of water against the specific heat of sand in this great science fair project.

In this experiment, students will discover how heat and pressure turn clay into slate, phyllite, and finally schist.

Science fair project which uses coins flips to visually demonstrate the probability of an event and how to express it.

What are the effects of colored light on plant growth? Explore plant behavior in this cool botany science fair project and learn about phototropism!

This science fair project idea explores whether color affects a person's emotional state.

Science fair project that helps you better understand density by comparing the relative densities of cans of Coke and Diet Coke.

In this experiment we will be determining whether birds prefer certain colors of seed.

Explore how sound waves are reflected and absorbed by producing echoes. Analyze which locations produce echoes.

This fun science fair project idea helps students learn how acid rains are formed and explore how acid rain damages the environment.