What chromosome combinations determine a fetus gender? Use probability to think about whether a sperm and ovum will create a male or female in this project.

By dropping a magnet through a copper tube, kids observe the cool (and bizarre) braking effect produced by the eddy currents predicted by Lenz's law.

Play hopscotch with numbers, but also with letters, to get kids ready for reading.

This science fair project idea studies how how do readers predict what events will happen next while reading a story.

The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.

Host a dog wash to raise money for yourself, for charity, or just for fun!

Boiling water in a paper cup is possible because of convection and the thermal properties of water and paper. Learn how with this fun science fair project idea.

This fun science fair project idea helps students learn how acid rains are formed and explore how acid rain damages the environment.

This science fair project idea determines whether the hand a person writes with relates to which side they will choose from in a fake taste test.

In this project, students will learn what and how foods are grown in rain forests and if there are sustainable methods that can be used.

The objective of this science fair project is to assess the benefits of the game system for improving player performance following use.

On Martin Luther King Day, help your third grader create an original "scratch art" card to thank a person who has made a difference in his life.

This science fair project idea researches the definition of ‘biodegradable’ and explores this in a real-life setting.

Check out this fun science fair project idea to learn about seismic waves and how fast they travel during an earthquake.

Generate gas from garbage. The purpose of this science fair project is to simulate how landfills generate gases that can be used to create energy.

Compare ability of selected materials to block UV-A radiation. Shine black light though glass at detecting beads underneath. Note color intensity.

Determine if âdouble dippingâ chips really spreads more germs than dipping only once per chip.

In this hands-on craft project, kids will make an analog clock of their own, and then use it to learn how to tell time.

This sponge relay game is the perfect way to cool off and to keep kids' minds sharp this summer.

Check out this cool science project idea to explore the differences in feeding behaviors of birds and if other species of birds also have color preferences.

Liven up a lesson about graphing by helping your third grader compile a bar graph from his classmates' birthday data.

The objective of this free science fair project is to examine the way in which the phases of the moon affect circadian patterns in mammals.

In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

This science project idea determines how people recognize words while reading.

Put your second grade scientist to work this Fourth of July with our colorful "liquid fireworks" project!

How can we describe the relationship of magnetic field strength vs. distance? Kids will find out with this free science fair project idea.

In this fun science fair project idea learn about the multiple sources of radio waves and fin out how difficult it is to block them.

Magnets may hold up papers on the fridge, but is it the paper that attracts them? Find out more with this kindergarten science investigation.

This footwear-focused activity introduces fractions as part of a set and it's the perfect way to generate excitement about fraction concepts.

Show your young artist how to celebrate Mary Cassatt, an Impressionist painter, by creating a mother-child painting in her style.