This fun science project explores the climate change over the course of the history of Earth and helps construct a diorama representing a geologic time period.

Explore how sound waves are reflected and absorbed by producing echoes. Analyze which locations produce echoes.

Find a mathematical relationship between the intensity of a sound wave and distance from the sound source. Use a pedometer and a sound level meter.

The objective of this experiment is to identify common materials that absorb sound waves with the greatest efficiency.

Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

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

People have favorite flavors, but what about ants? Which ant food is the most popular?

Science fair project about different digital image file types, compares different encoding algorithms used to compress the data.

Use an Elihu Thomson apparatus, also known as a ring launcher, to learn about electromagnetism concepts and the properties of various metals.

Determine how wind speed affects the stability of a kite and the ease of getting it into the air.

This science fair project idea quantifies the effect of weather- in this case temperature and humidity- on musical instruments.

This science fair project idea shows kids how to grow mold and whether mold grows better in dry or moist conditions.

In this experiment, students will discover how heat and pressure turn clay into slate, phyllite, and finally schist.

Determine the relationship between the speed of a sound and the temperature of the air it passes through.

Dig into the physics of pool to explore some cool applied math and learn about what happens in an elastic collision of equal masses.

In this project, learn about animal vision and different kinds of eyes: ocelli, compound eyes, and camera eyes. Find out what a jellyfish or grasshopper sees!

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

The goal of this science fair project is to evaluate the effect of heat on sound wave frequency.

In this classic Ivory soap experiment, kids learn what happens to different types of soap in the microwave, and why!

Thermometers are how we measure temperature, and we've all heard the terms "centigrade" and "Fahrenheit" tossed around, but what do they really mean?

Does skin thickness really decrease fruit spoilage? Find out in this science fair project idea!

The purpose of this science project is to determine which stimulus, gravity or water, will cause the greatest growth response in a plant.

This science fair project idea explores the different properties & interactions of sugar molecules.

This engaging project encourages young children to practice and refine the important scientific skills of sorting and classification.

Check out this cool science fair project idea that models the behavior of the cold desert plants: xerophytes and halophytes.

Examine whether males or females are more likely to have a higher center of gravity.

Science fair project that determines whether landscaping fabric impacts the ability of plants to receive water.

In this experiment, you'll make a seafloor spreading model to learn more about how plate tectonics work and create mid-ocean ridges.

Does "short circuit" mean that electricity takes a short course? This science experiment provides steps to help you get to the bottom of this science mystery.

Demonstrate how static electricity can cause an object to move. It also examines just how an object affected by static electricity will move.