Preschool - 7th Grade Science Resources : Page 29

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

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!

How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.

Glass is see-through, but usually you can still see that it is there. In this experiment, we use baby oil to make glass go completely invisible.

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:

Use simple items to create a kindergarten "grow box" that lets a kid see just how salad plants send down their roots and grow underground.

Recycling may be a confusing concept for your little one, so take the time to teach them the magic of compost - right in your own backyard!

This science fair project idea explores the egg's thin membrane.

This project examines if computer screen and text color affect retention and if people subconsciously prefer combinations of colors that help their retention.

Is there a relationship between caffeine and heart rate? Students will determine the effect of caffeine on heart rate in this fun science fair project.

In this cool physics experiment, use double plane mirrors at various angles to learn about light reflection. Then, see if you can solve a puzzling problem!

This science fair project idea determines which method of hand cleansing is the most effective.