This 4th of July, explore fourth grade science and make some safe fireworks in your own backyard using soda pop!

This science fair project idea tests the efficiency of short term memory.

Test your friends to find out if you can replicate the placebo effect's incredible results.

What kind of fabric holds dye best? How can you improve a dyed fabric's colorfastness? In this colorful project, test colorfastness using mordants and bleach.

Explore the relationship between personality traits and birth order effects.

Science fair project that examines how light wavelengths affect photosynthesis in the aquatic plant: Elodea.

In this wind tunnel experiment, you'll make a wind tunnel to test lift and airflow on a model plane and explore aerodynamics and the Bernoulli Principle.

How can Hooke's law explain how springs work? Learn about how Hooke's law is at work when you exert force on a spring in this cool science project.

Learn about the fruit fly life cycle in this experiment. Capture fruit flies to examine various stages of insect metamorphosis.

Science fair project that models the subterranean movement of water, using Darcy's Law. How can this information be used in hazardous material spills?

Assess physical and mental states of subject before and after drinking coffee. Compare initial expectations with their reported conditions.

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

Use natural materials to try out a new kind of weaving. Your child will enjoy gathering their materials outside and then using them to create a piece of art!

In this science project, young children observe, record, and create collections of colors in their world and increase their powers of observation.

In this science fair project, young children observe, record, and create collections of shapes in their world and increase their powers of observation.

Show your fourth grader how to see her heart in action. Make a simple device out of a drinking straw and clay to help her spot the movement of her pulse!

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

This science fair project evaluates the suggestibility of males versus females in copying the actions of those around them.

This tricky building block challenge asks your learner to think creatively. They will work on their divergent thinking skills as they try to fill up an index card perfectly with building bricks.

Find out if most people can distinguish the difference between tones on different instruments.

This science fair project teaches you about what makes persimmons so tart and how astringency can be removed by studying the effect of tannins on fruit.

Is garlic antibacterial? Antimicrobial? Kids find out by using common kitchen equipment and ingredients in this cool and easy microbiology science fair project.

Learn how to make a hygrometer to measure relative humidity in this project. Make a sling psychrometer hygrometer with gauze, thermometers, and a bottle.

This cool air pressure demonstration has kids break a ruler using only a newspaper and atmospheric pressure.

Students explore hot desert plant adaptations in this cool science fair project by observing how these organisms prevent excessive transpiration.

Determine if certain colors of light are more effective for photosynthesis. Plant seeds in cardboard boxes with different light, record visible growth.

Formulate a hypothesis and use the scientific method to determine the guess what is hidden in a box. Test abilities of volunteers, without opening box.

In this design challenge, your child will create a parachute for a small toy using typical household items.