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Showing Results for less than greater than

Most people assume that cold water freezes more quickly, but could that be false? Does hot water freeze faster than cold water? Let's find out!

Does Hot Water Freeze Faster Than Cold Water?

Discover whether cold or hot water from the faucet will boil faster on the stove.

Does Hot Water Boil Faster Than Cold?

This cool science fair project teaches kids about temperature, density and buoyancy using balloons that float with normal air. No helium required!

Floating Balloons

Science fair project that examines the different types of precipitation, evaluates the density of snow and calculates the ratio of snow-to-liquid.

Snow to Liquid Ratio

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

Rate of Evaporation

In this science fair project, kids measure how weather conditions affect how fast a puddle evaporates.

How Do Weather Conditions Affect How Fast a Puddle Evaporates?

Introduce students to measurement tools with this fun hands-on activity. Students will get plenty of practice comparing length and weight as well. Use this scaffolded EL lesson plan alone or with **How Big is It?**.

Measurement Tools

This project determines whether Styrofoam, paper, or plastic cups are best for preventing ice from melting.

Which Cup Best Prevents Ice from Melting?

How far away is the Red Planet from the sun? Find out with this great Solar System printable.

Where Are the Planets?: Mars

What keeps a an item cooler, polymer crystals or ice? Find out in this cool science experiment!

Polymer Crystals vs. Ice

Science fair project that examines albedo, and how this information is applied in the design of cars, sportswear, and other items. Which colors reflect light?

Albedo

Science fair project that examines how winter storms form and the relationship between temperature, moisture and snow.

Too Cold To Snow?

How do animals keep warm? In this experiment, find out whether fat insulation resists cold temperatures and learn how this works in the animal kingdom.

Fat Insulation: How Do Animals Keep Warm?

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

Baking Soda and Vinegar Balloon

Help your fourth grade scientist practice measurement, and make a scrumptious, healthy summer cheesecake in the process!

Healthy Cheesecake

The objective of this science fair project is to observe the differences in heat absorption for darker colors vs. lighter colors.

Color and Heat Absorption

Make this easy recipe for Halloween, featuring white chocolate and pretzels, for a crispy, creepy treat!

Candy Bones

Here is a fun middle school science project on factors affecting solubility. Learn how dissolved solids can "crash out" to form crystals when conditions change.

Factors Affecting Solubility

Forget store-bought dyes this Easter: color your Easter eggs with natural dyes made with ingredients from your own kitchen in this 1st grade activity.

Natural Easter Egg Dyes

This simple heat transfer experiment is a great introduction to the concepts of heat transfer and conduction.

Heat Transfer Experiment

Learn how starch and carbohydrates interact with different solvents in this fun and easy packing peanut science fair project.

Dissolving Packing Peanuts

Science fair project idea which teaches you how to make butter by separating cream into butter and buttermilk.

Homemade Butter

Science fair project that examines what causes thunder and why a thunderclap sounds so loud. How is lightening related to the creation of sound waves?

A Thunderous Sound

Your third grader will be amazed at the explosive combination of vinegar and baking soda in these chocolate volcano cupcakes with white chocolate "lava."

Bake Chocolate Volcano Cupcakes!

How does salinity affect the point at which water freezes? Kids will find out by performing this cool melting ice experiment.

Melting Ice Experiment

In this insulation experiment, you'll learn which clothes keep you warm in the cold, and which make you shiver.

Insulation Experiment: Keep Your Body Warm

Teach your little one to appreciate all the best things in life with a keepsake Thanksgiving plate.

Thanksgiving Plate

In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

Warm, Warmer: How Does Exercise Change Body Temperature?

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.

Chocolate-Covered Apples

Your young scientists will have tons of fun visiting measurement stations and using tools to measure various objects. They'll even be able to create posters at the end of the activity.

How Big Is It?

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