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

This science fair project investigates why the number of visible stars changes from place to place.

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?

Examine the effect of pressure on carbonation in soda.

This science fair project idea creates a sedimentary rock and to investigate what takes place during the rock cycle.

Have you ever seen fruit decay? Find out if a fruit will rot faster if you open it versus leaving it untouched!

This science fair project idea provides evidence that air is everywhere and takes up space.

The objective of this science fair project is to set up a compost bin to convert food scraps and organic waste.

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

Discover that the absorbency of fabrics depend largely on the shape and structure of the individual fibers that make up the fabric.

What heats up fasterâwater or soil? 5th grade students test the specific heat of water against the specific heat of sand in this great science fair project.

In this science fair project, students learn how pressure can make the minerals in a rock line up in the same direction and form bands and foliation.

Discover whether the â5-second ruleâ is effective at determining whether food is still safe to eat after being dropped on the ground.

This fun science project helps to investigate how much water can a plant take up and release in a certain period of time through the process of transpiration.

Prove that the Earth is not flat. The objective of this science fair project is to measure the angle of the sun and calculate the circumference of the Earth.

Science fair project in which you will learn more about the natural world by preserving and identifying different animal tracks.

Collect meteorite dust with a magnet in your very own backyard! The objective of this science fair project is to gather meteorite dust to study outer space.

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

Learn whether Mylar Balloons last longer than Latex Balloons or vice versa.

Explore the craters, maria, and highlands on the surface of the Moon! In this fun science project you'll create a 3-D model of the moon using paper mache.

Students explore hot desert plant adaptations in this cool science fair project by observing how these organisms prevent excessive transpiration.

What cause the phases of the moon? Make a model to see how the positions of the Sun, Moon, and Earth cause the crescent, gibbous, quarter, full, and new moon.

This science fair project idea determines if the temperature of rubber effects how high it bounces.

This science fair project idea explores whether cats can be trained in the same way that dogs can.

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 which simulates the global conveyor belts on a small scale, and observes the effects of wind, density and temperature on water movement.

What is biodiversity? Kids will study different areas of their backyards to see which is the most diverse to learn about biodiversity and random sampling.

This science fair project idea builds models of various types of bridges and then determines which bridge design is the strongest.

Science fair project which measures whether tsunamis are more destructive when they are caused by an earthquake or by a meteor.

This science fair project idea examines whether plants are still able to grow normally if they are turned upside-down.