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Science fair project that compares the freezing temperature of salt water and freshwater in order to learn about supercooling and condensation nuclei.

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

What are the effects of fertilizer on plant growth? What's the best fertilizer type (solid, liquid or powder)? Kids find out in this science fair project idea.

This fun middle school science fair project idea helps student discover the concepts behind deep sea diving and how Cartesian divers work.

Kids learn about Brownian motion, diffusion, and how temperature is a key factor affecting the rate of diffusion in this cool science project.

In this science fair project, students will use methylene blue to study the presence of aerobic bacteria in milk.

The goal of this science fair project is to evaluate the effect of heat on sound wave frequency.

Learn the chemistry and physics of the brain, how our nervous system work. Demonstrate that the brain is an electrical and chemical machine.

Ever wondered how a plant drinks water? This science project will teach you how and help you create a beautiful floral display!

Science fair project that measures the relative times it takes a plastic bag and a biodegradable plastic bag to decompose.

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

Science fair project that creates fog using bottles of hot and cold water.

Evaluate if people are more influenced by video or audio advertising.

Determine whether the relationship between a personâs armspan and height are genetic.

Explore whether pianists have the tendency to type faster than non-pianists.

Science fair project that explores the phenomenon of Non-Newtonian fluids by exerting force on different materials.

Help your middle schooler improve his observation skills by playing this simple observation and spatial memorization game.

This experiment explores the trend of reactivity in the alkaline earth metals as you go down the second column of the periodic table of elements.

Make scented sensory cloud dough. Add it to a sensory table, activity station, or put it in a baggie for extra at-the-park entertainment!

Study the effects of wind and temperature on evaporation. Place wet sponges in different environments, check at regular intervals, track time required to dry.

This experiment will explore the possibility of a connection between lunar cycles and how humans are affected.

A cool physics science fair project idea for 7th grade exploring the application of distance, velocity, and time equations.

Let your kid experiment with textures among fabric and other materials that are smooth, rough, soft, or slippery—and then they'll make a texture book!

Science fair project that demonstrates how a rainbow forms, by using water to split white light into its many colors.

Look at people's face shape. Do you think their face shape affects your perception of kindness? Find out more in this science fair project idea!

Cookie catastrophe! In this project you will determine if different types of cookie sheets can cause cookies to bake differently.

This science fair project idea investigates the relationship between memory and age.

Store bowls of fresh fruit in differently lighted environments. Contrast freshness based on appearance.

This science fair project idea investigates the hardness property of minerals.

The objective of this science project is to determine whether the brain first processes colors, shapes, or words when given conflicting messages.