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

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

Use this great no-bake recipe to save energy and keep cool.

Pfeffernusse are spicy and sweet Christmas cookies from Germany. Make a batch of traditional pfeffernusse this holiday season.

This homemade barometer allows your little scientist to contemplate and compare different air and weather conditions.

You've heard the expression "burn rubber" but do you know how heat affects rubber? Examine the impact of temperature on rubber in this fun science experiment.

This fun science project helps to investigate how much water can a plant take up and release in a certain period of time through the process of transpiration.

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

Any time is the perfect time to whip up a delicious batch of fluffy pumpkin cookies.

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

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.

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

This science fair project idea explores whether factors such as temperature and concentration affect the pH of a 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.

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 Mother's Day, mix in some fifth grade science learning to create this fabulous fudge!

Kids will learn how to make a thermometer to to explore liquid density in this great science fair project. Which liquids are affected by temperature the most?

Here's a thought-provoking activity to make new vocabulary words "stick" in the mind of your young learner.

Learn about the microclimate of your backyard by tracking rainfall, temperature, and observed weather with hand drawn charts and graphs.

Your child can turn cookie dough into a big pile of colorful painted fall leaves ready for eating!

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.

The goal of this golf science fair science fair project is to determine whether the temperature of a golf ball affects its elasticity and its rebound.

Science fair project that examines how temperature affects density and how density in turn affects the behavior of helium gas.

Try this fun and simple activity to help nurture your child's observation skills and nourish a growing love of science!

Do you think heat can affect a plant's growth rate?

Kids will learn about insulation, heat conduction, and the economic benefits of energy efficient windows in this cool science fair project.

Check out this cool science fair project idea to explore the risk of mechanical deterioration of artifacts placed in a storage box due to mold outbreaks.