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!

The objective of this science fair project idea is to examine light refraction as it passes through liquid crystals.

Do you think you could walk around upside down -- with your feet in the air and your head on the ground?

Grow these wheatgrass and alfalfa friends and watch their hair spring up in just a couple days!

Discover whether cold or hot water from the faucet will boil faster on the stove.

Evaluate the efficacy of different pain management techniques.

In this experiment, recycled objects are separated to demonstrate how mixtures are made and the variance in the physical properties of their ingredients.

A homemade lava lamp gives any room a retro flair. Find out how to make a homemade lava lamp, and learn some science too, with this educational activity.

Test the placebo effect in different groups of people.

This science fair project idea studies which kind of rock (sedimentary, igneous, or metamorphic) is most damaged by frozen water.

Jazz up your patio or backyard with hip and quirky planters made from simple Mason jars.

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.

Use a dichotomous key to identify plants or animals.

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

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 project teaches students about organic farming and the benefits and disadvantages of commercial plant food.

In this sound experiment children listen for differences as they tap on a bag of air, a bag of water, and a wooden block held up to their ears.

Can you stain teeth with tea, coffee, or coke? Explore how in this science fair project idea.

Help your first grader explore the world of scientific measurement by "weighing" fruit with a "water scale"!

Explore the electrical energy present in energy drinks.

Check out this fun science project idea to measure the amount of vitamin C in ripe, half-ripe, unripe and stored oranges.

Try this activity with your child to explore what happens to rain (and the living things that need it) when it becomes polluted.

Check out this fun science fair project idea to explore how building on different types of soil affects the relative stability of buildings in an earthquake.

Science fair project that examines the behavior of water and gravel in creek beds and the formation of sedimentary rocks.

This science fair project determines if the allelopathic chemical produced by the black walnut tree biodegrades immediately or persists over several days.

Help your kids fall in love with nature by making a simple clay bird bath. Set it up in your yard and watch the animals venture in for a sip of water.

This science project is to discover which Black Walnut tree tissue contains the most concentrated amount of Juglone, a substance that works like an herbicide.

Do plants get crowded? Have your curious kid investigate how plants respond if they're forced to grow together in a confined space.

Check out this cool science fair project idea that models the behavior of the cold desert plants: xerophytes and halophytes.

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