Determine whether butterflies like to drink sugar water, salt water, or plain water.

Chlorine and chloramine are added to our tap water to kill harmful microorganisms. What is the best way to filter these disinfectants in your drinking water?

Show your fifth grade scientist how to create a siphon using two buckets, plastic tubing, and water. Watch her astonishment as the water travels uphill!

Science fair project that compares the freezing temperature of salt water and freshwater in order to learn about supercooling and condensation nuclei.

Are you looking for a fun game that will keep your child on his toes? Try introducing him to Water Tag.

This experiment that explores water and air pressure will amaze your fifth grader as it appears that a single card is holding water in an upside-down glass.

Examine whether distilled water, spring water, or regular tap water yield faster plant growth.

This science fair project idea compares biodiversity between drops of water.

Learn with makes water molecules work with this fun and easy science activity!

Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.

Science fair project which determines if plants really do need water to grow, or whether they just need to be kept wet.

Have your child kick off their summer vacation by making a miniature water slide!

Find out which type of sponge holds the most water.

Help your child understand surface tension by showing them how they can create a "skin" on top of water.

Dive into U.S. colonial history by making a simple bottle gourd water cooler, crafted by colonists of Roanoke Island in the 16th century.

Discover whether a metal will expand under hot water.

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

What heats up fasterâwater or soil? 5th grade students test the specific heat of water against the specific heat of sand in this great science fair project.

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

In this activity, learners will discover how to make a basic water filtration system using common materials found around the house or outside.

The objective of this science fair project is to analyze the effects of salinity and temperature on water.