Showing Results for addition like denominators

Try the classic balloon-on-the-wall trick with your kid and watch static electricity in action.

Help your kid feel like a superhero with this safe and fun science experiment that creates an electrical charge that's like a mini lightning bolt!

This experiment uses a yeast solution, liquid detergent, and hydrogen peroxide to produce an exciting reaction like no other!

Would your child like to learn about a hidden world? All she needs to do is open her box of markers!

Take a look at forensic science with your child. She'll learn how to take a shoe impression, just like the detectives do!

Explore solids and liquids with your young scientist by making gluep, a goopy substance that can behave like both a solid and a liquid!

How fast does light travel in different mediums? Kids conduct a cool refraction experiment in materials like water and air for this science fair project.

In this cool science fair project, kids apply basic algebra to learn how to make a PVC pipe instrument while exploring concepts like frequency and resonance.

Before digital cameras, before Polaroids, there was the original pinhole camera. Build a pinhole camera and see what true vintage photography looks like!

Help your child get a grasp on what it was like to build gigantic ancient structures with this easy engineering activity about science and physics.

Did you ever think you could make colors disappear right before your eyes? This science experiment is just like a magic trick: now you see it, now you don't!

Use reusable, recyclable materials--along with a dose of imagination--to build a castle with first grade geometrical forms.

Have your child build his own mini waterfall, and help him develop his planning, problem solving, and architectural skills.

This kindergarten science activity will help her explore the changing states of matter which transform an egg from raw to soft to hard-boiled.

What do you get when you combine science and fairies? Fairy scientists who make their own potion, of course! This activity promotes critical thinking skills as your child mixes, experiments, and creates their very own fairy potions.

Before your treat your child (and yourself!) to a yummy snack, help her learn a little about Sir Isaac Newton's First Law of Motion!

This science fair project idea shows how a vibrating object transfers energy to whatever it touches.

This science exploration lets your first grader see how eggs can provide a perfect environment for a living, growing creature.

Your kid can learn about the process of making frozen yogurt and enjoy a homemade, flavorful dessert. Experiment with this fun, chilly food!

Learn how to make marbleized paper with simple everyday ingredients in this fun activity! Your child will learn about oil and water while doing this project.

Sink or swim? Calculate the density of various fruits and vegetables using water and a kitchen scale.

Every time a sound is produced it emits a sound wave. This experiment demonstrates how sound travels, using nothing more than a spoon and a string!

Play this flashlight game with your child to teach him about objects that are transparent, translucent, and opaque.

Here is a nifty science experiment using Epsom salts to make "frost" appear on a piece of glass.

This surprisingly good glue recipe comes from common kitchen items.

In this cool sound resonance experiment, learn about frequency and pitch, and use a tuning fork to calculate sound velocity in air.

Explore concepts in current and coltage with these Van de Graaff generator experiments.

Explore the wave-particle duality of light! Learn how light can behave as both a wave and a particle in this cool physics science fair project idea for kids.

This science fair project idea experiments with spinning color wheels and optical illusions.

Is it solid or liquid? Create oobleck and witness the amazingly weird oscillation between the two!