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Do dogs understand English? Kids will find out with one of our favorite dog science fair projects that tests how dogs process human language and other cues.

The objective of this science project is to examine the factors that affect the dispersion of oil in water, including water agitation.

The goal of this science fair project is to demonstrate the effects of oxidation by writing a message in invisible ink made from lemon juice.

Examine the effect of pressure on carbonation in soda.

Learn about the power of exponents. The objective of this science fair project is to explore and understand how exponents are used.

Test out various brands of permanent markers to see which one is least water soluble.

This classic children's game demonstrates how sound travels through air vs. through a solid.

Your child will create an adorable Christmas tree from their footprint and practice counting while decorating their tree with objects of a variety of textures.

Throughout history, people have used song as a teaching and memory tool. This project explores whether song improves a person's ability to retain information.

This science fair project idea provides evidence that air is everywhere and takes up space.

This science fair project idea explores which is better for diffusion and cell absorbing, more surface area, or more volume.

In this CD hovercraft science project, students will construct their own DIY hovercraft.

Science fair project idea helps conceptualize probability. Compare probabilities and outcomes of cards drawn from a standard playing deck.

This project investigates the affect of storage temperature on microwave popcorn.

This experiment investigates the relationship between the temperature of a candle and its burn rate.

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!

This fun science project helps to investigate how much water can a plant take up and release in a certain period of time through the process of transpiration.

This science project challenges students to study deer behavior in their natural habitat- the feeding patterns, social behaviors, male to female ratio, etc.

This science experiment tests why guacamole goes brown and if leaving the pit in will stop guacamole from turning brown.

Learn how acid-base catalysis affects enzymes and enzymatic reactions in this science project.

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 science fair project, students will try to discover if test subjects can detect the presence of Monosodium Glutumate (MSG) in food.

This science fair project idea measures physical dexterity as a function of temperature.

Do earthworms like moisture or darkness? Find out as we explore the relationship between earthworms and light.

Why does honey crystallize? This science fair project project answers this question and identifies the variable that makes this sweet solute crystallize faster.

What direction should solar panels face? It's not the direction you might think! This free and enlightening science fair project helps kids discover the answer.

In this activity, your child will transform an egg into a glowing, bouncy "ball" that they can play with.

This science fair project idea measures the growth of bread dough and finds out how long it takes for the dough to stop rising.