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This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.

In this design thinking activity, your child will choose an animal to research, learn about the animal’s habitat, and then replicate the animal's habitat using household items.

In this fun activity, your child will create their very own solar oven to bake s'mores!

This classic children's game demonstrates how sound travels through air vs. through a solid.

Reinforce your child’s understanding of the alphabet by helping them construct all of the letters using pipe cleaners.

This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

Young scientists will investigate people's preferences for saltiness, and make some inferences about genetics and diet.

Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.

What's the relationship between temperature, air humidity and static electricity? Kids will find out with this free static electricity science fair project.

What's the difference between a microwave and an oven? Use mashed potatoes to explore which kitchen appliance does a better job at keeping food warm.

What causes the seasons to change? Kids find out by modeling the earth's tilt using a globe, flashlight and graph paper in this cool science fair project idea.

In this fun guessing game, your child uses his sense of smell and taste to figure out what is in the container. Here's how to play:

This snowman's not abominable, he's adorable! Your child can bring her very own snowman to life while practicing how to create texture.

In this project, build an insect model that shows how the head, thorax, and abdomen fit together! Learn insect anatomy by constructing a paper mache critter.

Have you ever noticed the ridges on a dog's nose? In this project, we take several dogs' nose prints and discover just how unique they are!

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

In this Bernoulli's Principle experiment, you'll learn how an increase in the speed of a fluid, like air, decreases pressure.

What is surface tension? Kids will discover how water-skating insects use surface tension to keep from sinking by making a model water walker.

Check out this fun science fair project idea for 1st grade: a solar eclipse model that demonstrates total, partial, and annular solar eclipses.

Young physicists will wrestle with a discrepant event: the Hammer Ruler Trick. They'll make some inferences about torque, balance, and center of gravity.

Learn about the layers of the Earth and make a model! Create a earth layer book, cake, or clay diagram.

What makes your shadow dance around all day? Let's play detective and find out why that sneaky shadow never stays in one place for long.

In this experiment, students will discover how heat and pressure turn clay into slate, phyllite, and finally schist.

Using a toy race car kids create a visual model of the Doppler Effect.

How does a compass work? What's a magnetic field? Kids will build their own compass at home to find the answers in this great science fair project idea.

In this awesome science fair project idea, kids will be attempting to pick up different objects using snail slime.

Children have a naturally inquisitive mind. Foster their curiosity with a walk through an autumn field or park to answer age-old “why” questions. As you walk with your child, you can encourage them to ask questions.

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