Showing Results for high frequency 3

This science fair project idea produces varying pitches of sound.

Discover whether different amounts of water added into a wine glass will produce a different pitch when their fingers are rubbed along the rim.

Children combine an acid and an alkaline substance to simulate a volcano eruption in this fun experiment.

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

An home science experiment for older students that teaches about the science behind heat.

This science fair project idea explores whether talking to a plant will help it grow.

This 4th of July, explore fourth grade science and make some safe fireworks in your own backyard using soda pop!

Make your own helicopter using a paper clip and a sheet of paper. Hold the spinner up in the air, let it go, and watch it spin gracefully to the ground.

Inspire your child to put on her engineer hat for the day, as she builds her very own, double-decker bridge.

This simple "how to make a water wheel" activity makes physics come alive for your child by demonstrating how different kinds of energy work.

Has your kid noticed how much bigger the moon looks when it's low in the sky? Here's an activity you can do to show them that it's just an optical illusion.

Set your young chemist up for an afternoon of science-fueled magic with a deceptively simple activity starring baking soda and vinegar!

Help your fifth grader execute this experiment involving a lit candle (submerged in water!) to show him the wonders of heat energy transference.

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

When you see those sunscreen "protection levels," what does that really mean? Try this experiment to find out.

What causes sound? Here's a simple science experiment that adds a visual element to the science of sound to help kids better understand this tricky concept.

In this 3rd grade science activity, you'll experiment with the little-known fourth state of matter: polymers! Mix borax with white glue and watch what happens.

Make a DIY golf putter and design your own golf putting course in this 2nd-3rd grade arts and crafts/game activity.

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

This easy aerodynamics activity is a simple way to introduce kids to the scientific method.

This taste buds science experiment demonstrates how strongly our sense of smell controls what we taste.

Has your child ever asked you how a submarine works? Here's a simple bathtub project that will make for a hands-on answer.

Make your own marshmallows and mix up some very interesting third grade chemistry lessons while you're at it!

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

Let your fourth grade chef mix up butter and sugar with scientific principles about different states of matter, and get delicious toffee, too.

Show your kids the power of baking powder by conducting a simple experiment. Make four batches of cornbread, all identical except for one thing: baking powder!

Want to make Halloween truly eerie? Science to the rescue! These ghouly hands come alive with a little help from simple chemistry.

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

Here's a fun and simple activity to introduce your child to surface tension, and pull an awesome stunt in the process!

Here's an interesting activity that will enable your child to make his own magnifier out of a drop of water