Do different types of oil mix or stack? Find out in this science fair project idea!

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

The rock cycle will come alive for your child when he uses broken crayons to create the three basic rock types.

This science fair project idea examines whether the colors of the spectrum respond differently in the thermal aspect when radiated by the sun.

Discover whether different amounts of water added into a wine glass will produce a different pitch when their fingers are rubbed along the rim.

This science fair project idea explores the different properties & interactions of sugar molecules.

This science fair project idea explores the different properties of matter.

This science project teaches students to classify different shapes of leaves.

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

This science fair project idea produces sounds by creating vibrations using different objects.

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

This science fair project idea explores whether white light can be separated into different colors.

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

This science fair project idea investigates the ability of different whitening toothpastes to whiten teeth.

Science fair project that develops latent fingerprints on a non-porous objects by converting superglue from a solid state to a gaseous state.

This science fair project idea researches the different layers of the atmosphere and creates a visual representation of the atmospheric layers.

This science project teaches students the relationship between compost and plant growth. Students conduct an experiment with different types of compost.

This light bulb science project includes step-by-step instructions for testing the heat from different light bulbs.

This science project has students collect wood samples and invent new uses for different types of wood based on its properties.

Science fair project that identifies the differences between soils from different environments and attempts to figure out why those differences exist.

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

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

This science fair project teaches about mold. Students will test different foods to see which grow mold the fastest.

Unlike other seed sprouting projects, this one allows kids to compare five different sprouts (either 5 herbs or 5 flowers) by watching them grow in a glove.

How greasy are your potato chips? Students will use a reliable method to quantify greasiness and compare different brands in this great science fair project.

Science fair project idea that examines different physical characteristics of a chosen animal. Make educated guesses about evolution based on animal's form.

This simple "how to make a water wheel" activity makes physics come alive for your child by demonstrating how different kinds of energy work.

This is a fantastic and easy science experiment where kids will learn about elasticity by testing how high bouncy balls of different materials can bounce.

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

In this fun science fair project, make two different scale models of our solar system using Astronomical Units and planets' relative size!