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Determine how salinity affects the circulation of warm and cold water. Note whether the warm water mixes or forms a layer with cold water.

How powerful is the reaction between baking soda and vinegar? Find out here!

Shamrock Stamps are a great way to celebrate St. Patrick's Day. Simple and symmetrical, this symbol of Irish culture is the perfect shape for prints.

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

Based on the concept of water's "freezing point," this activity entails the lowering of water's freezing point to chill ice cream!

What is the coldest temperature possible? In this cool experiment, you'll calculate absolute zero by extrapolating data on the temperature and volume of gas.

Solve the mystery of the unpoppable balloon in this 7th grade science experiment that demonstrates the process of heat transfer.

Check out this fun science fair project idea for middle school students to learn about the effects of temperature on the density of a gas such as air.

Here's a fun math and science activity: help your child explore four different kinds of measurement, using their hand and a few simple household tools.

Invite your second grader to help you measure and mix these fresh, cool concoctions!

In this cool project, create a lighted, scale model of the different layers of the Sun, including the core, radiation and convection zones, and photosphere.

Is horse manure a possible energy source in a crisis? Use calorimetry to find out how much energy horse manure can produce in this science fair project.

Construct calorimeter and determine the caloric value of a sample of foods by change in temperature for each of the foods.

If you're looking for a fun way to have your child gain practice pattern-making while working out fine motor skills, making Washi eggs is the perfect activity.

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

A food groups plate shows your child what category her foods belong in. Make a food groups plate with your child before dinnertime.

Instead of loading up on mayonnaise based potato salad, your child can whip up something healthier: German potato salad!

This science fair project idea quantifies exactly how accurate the cricket thermometer is.

Study the impact of environment on seed germination among three materials: soil, paper towel, and cloth. Note when seeds germinate and how well they germinate

Science fair project that determines the relationship between the temperature and the rate of cricket chirping. How many times do crickets chirp each minute?

Science fair project that tests how heat affects the chemical reaction between a seltzer tablet and a glass of water.

Invite your kindergartener to explore the bright new world of measurement by starting out with nonstandard (and tasty!) units, such as gummy bears or worms.

If you love the idea of handing out holiday tins of homemade cookies but you're not a baker, chocolate-covered apples are the perfect solution.

Kids will create their own version of Richard Feynman's rubber band heat engine to learn about thermodynamics with this cool science fair project idea.

Examine the connection between temperature and chemiluminescence.

Why doesn't the ocean freeze? Students answer this question by simulating the chemical composition and temperature of arctic waters in their own home.

This project explores what happens to a rubber band when it is heated and cooled.

Compare air temperature with the infrared temperature from a reflecting surface at different times of the day, in shade and in sunlight.

Learn how to make a paper snowflake with these simple instructions. Help your child learn how to make a paper snowflake with only paper and scissors.

What is the hydrologic cycle and how does it work? Check out this fun and easy science project where you will model and learn about Earth's water cycle!