In this science fair project, kids measure how weather conditions affect how fast a puddle evaporates.

This experiment challenges students to forecast the weather based on the surrounding areas' weather.

This cool and easy elementary school science fair project idea provides the basic information on the use of our senses to experience the world about us.

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

Learn about the effect of artificial light on plant growth versus natural sunlight and delve into some biology and botany concepts in this science project.

Science fair project examining barometric pressure, and how it can be used to predict the weather. How does atmospheric pressures relate to weather conditions?

What are the effects of colored light on plant growth? Explore plant behavior in this cool botany science fair project and learn about phototropism!

Science fair project that examines condensation and the conditions needed in order for dew to form.

This is a quick, easy science fair project that conveys the idea of density to upper elementary students.

Kids learn about examples of mechanical weathering and conduct an experiment with seeds and plaster in this cool geology science fair project idea.

Here is a fun middle school science project on factors affecting solubility. Learn how dissolved solids can "crash out" to form crystals when conditions change.

This fun and easy middle school science fair project idea explores the topic of pollution and demonstrates if polluted soil affect the growth of green plants.

This project determines the age of a tree using a growth factor chart instead of cutting the tree down to count the rings in its base.

In this science fair project, students examine under what conditions individual plants release seeds and how far the seeds are released.

This science fair project examines which fruits and/or vegetables will ripen prematurely when placed with ripe apples.

In this science fair project, students make their own rain gauge to measure rainfall.

This science fair project will help students learn about non-vascular plants, such as mosses.

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

This fun experiment provides a concrete and visually striking illustration of photosynthesis.

Wonder why bugs always fly around your lights at night? This experiment determines whether insects are attracted to the heat or the light.

What's the relationship between temperature, air humidity and static electricity? Kids will find out with this free static electricity science fair project.

This experiment examines whether storing your orange juice at different temperatures affects its acidity.

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 science fair projects, students will grow out the bacteria that collect on air conditioner filters.

This science fair project explores how osmotic pressure forces water through the root up into the plant.

This project compares the strength of one, two, and three-ply toilet paper.

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

In this science fair project, students use the streak test to tell minerals apart from each other.

In this experiment you explore how tectonic plates move to create land and expand bodies of water.

Science fair project that examines how temperature affects density and how density in turn affects the behavior of helium gas.