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 fair project idea investigates food preference of birds.

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

Determine whether magic salt is more effective at melting snow than regular salt. Pour one ounce of salt over the ice cubes, compare the melt downs.

This project examines how temperature affects the volume of gas in balloons.

Time is an abstract concept that's difficult to grasp. But waiting for the turkey to come out of the oven on Thanksgiving is a concretely yummy experience.

The purpose of this science project is to investigate which will grow larger plants: compost, soil and Miracle - Gro, a mixture of both.

This project compares different liquids and the freezing, melting and boiling points of liquids.

This science fair project idea explores whether boiling and freezing water will have an effect on how much it weighs.

This activity turns your kid into the family weatherman. Plus, it teaches him to collect data and begin to understand graphing.

This science fair project idea teaches how the gases and pollution in the air affect the earth's atmosphere temperature.

Study the effects of wind and temperature on evaporation. Place wet sponges in different environments, check at regular intervals, track time required to dry.

Science fair project in which you will examine how crystals are formed by creating your own crystal using charcoal briquettes, salt, and ammonia.

Make your own marshmallows and mix up some very interesting third grade chemistry lessons while you're at it!

This science fair project idea examines the actual cost of three household light bulbs by testing energy consumption.

The purpose of this science project is to determine which chemical best lowers the temperature of water in a cold pack and if the amount affects its use.

In this science fair project, students examine how temperature affects sugar transport within a plant.

This science fair project will help learners determine whether algae can be made to grow by feeding it supplementary carbon dioxide.

Science fair project in which you will build your own algae photobioreactor which will meet the physiological requirements of algae for maximum growth.

Help your first grade scientist learn about metamorphosis by observing the life cycle of some interesting creepy crawlies.

Determine which environment keeps an ice cube frozen for the longest duration. Inspect and record your observations when cubes melt.

Kids will learn how to measure the viscosity of liquids by making their own homemade viscometer in this great science fair project idea.

The purpose of this science fair project is to investigate which food wrapping works best to keep refrigerated and non-refrigerated foods from spoiling.

The purpose of this science fair project is to investigate whether cooking seeds before planting will speed up germination and growth.

The objective of this experiment is to evaluate the effects of acid rain on plants.