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Science fair project that demonstrates the different phases of the moon by physically representing them with construction paper and a shoebox

Use dirt and different colors of craft sand to make unique layers in a clear plastic cup to represent the layers of the Earth.

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

Let your fourth grade chef mix up butter and sugar with scientific principles about different states of matter, and get delicious toffee, too.

This experiment researches if you gave different amounts of food to mosquito larvae would they grow faster or slower

In this awesome science fair project idea, kids will be attempting to pick up different objects using snail slime.

This science fair project idea determines if material and tensile strength of different types of skateboard wheels affects the velocity of the skateboarder.

Learn about the Atwood Machine and Newton's 2nd Law with a pulley and masses of different weights in this physics science project.

In this science fair project, students will use four different household objects to see which ones form the most or best crystals.

What's the science behind those out-of-sight roots? Find out if you can trick roots into growing in different directions.

This project explores whether there is an effect on people, including heart rate and self-expressed mood, when they are exposed to different types of music.

Science fair project that teaches you key definitions of molecular science, and how different isotopes of an element affect the relative atomic mass.

The objective of this science fair project is to determine the rate at which participants can respond to different patterns.

Science fair project in which you will attempt to throw a ball the greatest horizontal distance possible by using different angles.

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?

The goal of this science fair project is to demonstrate different ways to generate static electricity and record its effects.

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.

Store seeds under three different environmental conditions. Plant seeds in carefully marked groups, watch them grow. Compare results.

Boost your preschooler's attention to detail by getting her to explore the differences between two different pumpkins: large and small.

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

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

Compare the whitening abilities of four different brands of whitening toothpaste to see which one whitens the fastest and which one whitens the most.

In this fun science experiment, make a balloon car and test it on different surfaces to learn about sliding friction and rolling friction.

Kids will make predictions about cricket behavior by conducting this fun and easy experiment which simulates different environments for crickets.

Use chemical analysis to identify a variety of mystery powders that look the same but actually have very different properties.

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.

Come take off your shoes and explore with your feet. Your child will embark on a barefoot adventure as he plays with different textures.

Create your own light bulb and test filaments of different thicknesses to see which keeps the bulb burning for the longest time.

Determine if certain colors of light are more effective for photosynthesis. Plant seeds in cardboard boxes with different light, record visible growth.

Kids will make a beautiful rainbow in a jar and learn what enables different types of liquids to remain distinct in separate layers.