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

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

Study the effects of wind and temperature on evaporation. Place wet sponges in different environments, check at regular intervals, track time required to dry.

Demonstrate that insects observe colors and choose favorites. Place colored pieces of construction paper on a flat, glassy surface, observe bug preference.

Get a cool middle school chemistry project idea on how to determine whether a physical or a chemical change has taken place.

Place mushroom caps on poster board, label samples. Check beneath mushroom caps for "prints" of spores. Record and interpret prints left behind.

What makes your shadow dance around all day? Let's play detective and find out why that sneaky shadow never stays in one place for long.

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?

Culverts transport seeds away from their original location to different places. This science project examines the effect of culverts on plant growth in streams.

Which public places harbor the most bacteria and germs? Test different environments to find out where the most bacteria live in this science project.

4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.

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

This experiment will explore the possibility of a connection between lunar cycles and how humans are affected.

What's the chemistry behind dyeing Easter eggs? Will adding vinegar to dye help the eggshell absorb the color? This colorful science project has the answers!

Science fair project that determines whether windmills can be designed so that birds will not feed on them. Will they discriminate between different patterns?

This fun science fair project for 8th grade demonstrates what Kepler's 3rd law predicts about a planet's orbital period and its distance from the sun.

Kids build a desert food chain, desert food web, and desert food pyramid in this cool science fair project to learn about trophic levels and consumers.

Along with being an interesting science activity, dehydrated strawberries are also tasty â and healthy!

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 that measures the relative times it takes a plastic bag and a biodegradable plastic bag to decompose.

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.

This experiment will explore if a randomly iterated algorithm will result in a pattern.

This science experiment tests why guacamole goes brown and if leaving the pit in will stop guacamole from turning brown.

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

Science fair project that develops latent fingerprints on a non-porous objects by converting superglue from a solid state to a gaseous state.

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

The aim of this science fair project is to study the mathematical construct called magic squares and create a unique magic square puzzle.