Showing Results for high frequency 4

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!

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.

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

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.

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

Create a homemade pair of sunglasses with colored lenses to see just how light and color affect our sight! Use this fun project to practice science!

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

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.

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

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

The pinwheel is a simple toy that has been around for years and uses the wonders of the wind to spin it and delight kids of all ages!

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.

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

Give your budding young observers a chance to discover simple machines at use in their own home.

Learn to solve a crime scene investigation using an important forensics tool: oblique lighting.

Give your child an introduction to food preservation by making and canning your own yummy, homemade pasta sauce!

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

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

Excite your fourth grader by recreating ancient Viking myths. This miniature longboat will explore the principle of water molecules expanding when heated.

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

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

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.

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

Combine the science of physics with the fun of playing spy. Your young detective can make his own tiny looking glass. It's simple to make!

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

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.

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

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