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.

examine how passive solar heating works, measure temperature in a parked car on a sunny day. ways to use passive solar heating as an alternative, energy

Science fair project which determines whether the size or the thickness of a piece of paper has an effect on how many times it can be folded in half.

Will the shape of an ice cube impact how fast the ice melts?

This science fair project idea investigates how the height at which a pendulum is released affects the length of time it continues.

This science fair project idea explores how the shape of a boat affects its density and how much weight it can float.

Kids explore how a single movable pulley can confer a mechanical advantage over a fixed pulley in this cool engineering science fair project for 2nd grade.

Total alkalinity and pH personal care products are controlled to prevent skin irritation. Learn more about basic and acidic substances in this science project.

Find out whether cast iron or regular teflon pans heat up faster and also retain their heat longer.

This science fair project idea studies which brand of wintergreen candy produces the most sparks in the dark.

Study the life cycle of the common blowfly as it relates to forensic investigation. Record the first time you see flies, maggots, and eggs.

Demonstrate how to tell the age of an egg without having to crack it open.

Soil is made up of different layers. How far down do you need to dig to find the soil horizon, or the place where bits of leaves and branches become soil?

This science project uses Mohsâ Hardness Test to show kids how to compare the hardness of different types of minerals.

This light bulb science project includes step-by-step instructions for testing the heat from different light bulbs.

Future engineers, unite! Discover how to keep a sandcastleâs bridge from falling into the moat.

Challenge your learner to design and build a city of their own in this creative engineering activity.

Is it amplitude? Weight? Length of string? Kids will discover what factors changing the period of a pendulum depends on in this fun and easy physics experiment.

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!

Learn about the fruit fly life cycle in this experiment. Capture fruit flies to examine various stages of insect metamorphosis.

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

This science fair project idea explores whether the process used to dry the beans we eat for food renders them unviable.

Kids will learn how to make a steam powered rocket boat, also called a putt putt boat or a pop pop boat, in this great science fair project for 4th graders.

Does putting soapy water on plants help or hinder plant growth? Kids learn about greywater and how it affects plant growth in this cool science fair project.

Science fair project which will teach you more about the foods that you eat, and learn which ones are healthier choices.

In this project, all you need is a protractor to learn how to use the altitude of Polaris to find latitude on Earth. Polaris is also known as the North Star.

Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

In this fun science fair project idea, kids will experiment with various methods in order to discover the fastest way to cool a soda.

Find out whether putting something on top of a plant will inhibit its growth.