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

This science fair project idea measures physical dexterity as a function of temperature.

This project explores whether music affects the growth and health of plants.

This science fair project idea determines which flower lasts the longest.

Why do plants wilt? Kids will learn to think critically about what environmental factors affect plants, and what plants need to survive.

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

Give your second grader a chance to get his feet wet with measurement before he moves onto the more complicated stuff by trying this activity with him at home.

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

Do plants breathe? Not exactly. They do respire though! This activity will help your child with see that plants are producing the oxygen we need to survive.

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

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

This science fair project looks one of the most important factors affecting seed germination: water. A fun and easy plant biology experiment for 3rd graders.

This science fair project idea examines reptile behavior and to determine whether reptiles are more active during warmer temperatures.

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

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

In this cool experiment, learn about the forces of resistance in a liquid and race marbles in a cylinder to find out which fluids have a high viscosity.

Discover if temperature settings in a fridge make a drastic difference in terms of bacterial growth.

This science fair project idea determines what factors influence an individual's reaction time using a web-based timed reaction test.

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?

Determine which metal has the highest rate of conductivity.

Check out this cool science fair project idea to explore non-chemical means of preserving fruits by using thermotherapy.

In this activity, have your second grader practice measuring by finding the height, weight, and length of their most treasured toy!

Help your child learn science and math skills like sorting, sequencing, and ordering while taking a nature walk and collecting and collaging leaves.

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.

Plants help keep a house cool! This article includes step-by-step instructions for completing this fun and interesting science experiment.

Explore the best way to store popcorn kernels. It examines the impact of moisture and temperature on unpopped kernels.

This measurement activity uses feet to compare objects, but not the ones found on rulers and measuring sticks...the feet on your child's own body!

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