Do thick liquids flow faster than thin liquids? Examine water and syrup's viscosity and inertia to learn about the Reynolds Number, laminar and turbulent flow.

In this simple and social activity, children use size comparison skills to find objects in nature that are bigger, smaller, longer, and shorter.

Is exercise a cellular activity? Check out this fun science fair project idea to compare the carbon dioxide production before and after exercise.

In this cool science experiment, test and compare the adhesive holding strength of homemade casein glue versus commercial glue.

The objective of this science fair project is to test the growth rate of a plan in a crystal medium in comparison to traditional soil.

Wool can absorb 1/3 of its weight in water, while still keeping the body warm. She can test this theory by performing a scientific sock comparison!

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

Science fair project determines relationship between number and variety of insects and spiders by collecting and counting invertebrates in a ecosystem.

This science fair project investigates why the number of visible stars changes from place to place.

Science fair project that tests the correlation between outdoor temperature or weather conditions and the number of visible stars at night.

This science project lets students explore the number of spots on a ladybird and how to treat ladybugs with respect.

Science fair project idea that compares number and relative sizes of leaf stomata. Collect leaves of plant species, identify, observe stomata with microscope.

In this cool robotics project, construct a motorized robot with a sensor and put it through a maze test to find the number of errors it makes along the way.

This experiment evaluates if people of a specific gender or age more likely have an elevated number of taste buds, allowing them to taste what others cannot.

This science fair project idea discovers the average number on the Scoville scale that humans can endure in hot peppers before physical signs kick in.

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

Investigate the different ways in which objects and organisms can be classified, create your own. then have volunteers classify using their own systems.

Learn about the field of psychophysics and to learn about "Just Noticeable Differences."

The objective of this science fair project is to examine the cleanliness of salad preparation techniques.

Science fair project which measures the amount of heat energy released by a burning candle by calculating how many calories of heat it emits.

The objective of this science fair project is the compare the rate and efficiency of disaccharide and polysaccharide fermentation by yeast.

Want to boost math and science learning? Take a bug expedition and give your first grader practice observing and charting what they see.

Show your kids the power of baking powder by conducting a simple experiment. Make four batches of cornbread, all identical except for one thing: baking powder!

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.

Is your little scientist up for a rocky challenge? Let them make their own geode rocks using eggs and epsom salts!

Your preschooler can learn how to siphon water with just two bottles and a plastic tube in this fun, educational science activity.

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 idea is to determine whether frozen vegetables have more nutrients than canned vegetables.

Who knew that nature could get so crafty? Show your kindergartener how to collect and morph pinecones into a whole team of personalized pinecone people.

Introduce your child to science with something they see everyday--their shadow!