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

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

Science fair project which tests which antacids are most potent by measuring how well they neutralize the acid in lemon juice.

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

Science fair project that tests how heat affects the chemical reaction between a seltzer tablet and a glass of water.

Examine the effect of pressure on carbonation in soda.

This science fair project idea creates a sedimentary rock and to investigate what takes place during the rock cycle.

How do icicles form and what do they look like? Do this free science fair project and watch the formation of icicles occur right before your eyes.

The goal of this science fair project is to assess the acidity levels of common food and household products using pH test strips.

Create a DIY Electromagnet! Using a 9v battery to create an electrical field around a nail, students explore electromagnetism in this cool science project idea.

This science fair project examines the vein structure (venation) of leaves in order to determine the class of the plant sample.

The moon doesn't produce its own light, so why can we see it shining in the sky? Learn about reflection and planetshine in this fun and easy science project!

This science fair project explores discover whether the acidity of sour candy is comparable to that of battery acid.

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.

Science fair project that uses muriatic acid to develop fingerprints that would otherwise be invisible.

Show your preschooler how to make a print of a butterfly using her hand as a tool--a great way to stimulate her sense of touch.

In this project combining nature, art, math, and science, children make rubbings of leaves then observe shapes and structures and sort the leaf images.

This snowman's not abominable, he's adorable! Your child can bring her very own snowman to life while practicing how to create texture.

This experiment examines whether storing your orange juice at different temperatures affects its acidity.

This science fair project idea studies the acidity of rain water and whether the acidity is the same on all rainy days or does it fluctuate.

In this challenge, students are tasked with creating a model roller coaster that a marble can travel through.

Is there a relationship between caffeine and heart rate? Students will determine the effect of caffeine on heart rate in this fun science fair project.

This science experiment explores why leaves change color in the fall and the role of photosynthesis in leaf coloration.

In this experiment, you'll make a seafloor spreading model to learn more about how plate tectonics work and create mid-ocean ridges.

Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.

This project will examine the relationship between materials and air resistance.

Your child can create his own texture tree, experimenting with design during the process. The result will be a beautiful addition to your holiday decorations

This project examines whether more expensive golf balls translate into better results on the golf course.

In this experiment, students find out what happens when a less-dense fluid interacts with a denser one, replicating the effect of cooler solid rock on magma.

In this experiment you observe and determine how well your cat uses his whiskers to navigate through a maze.