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

Create a DIY Electromagnet! Using a 9v battery to create an electrical field around a nail, students explore electromagnetism in this cool science project idea.

How do the phases of the Moon and gravity cause spring tides and neap tides? Does the Sun play a role in the tides? Figure it out in this fun science project!

Study structure of the lens found in the human eye and determine whether it is concave or convex. Prepare a ray diagram, formulate hypothesis.

Use applied math to model orbital eccentricity in this cool science fair project for 7th grade.

Science fair project that determines the relationship between the temperature and the rate of cricket chirping. How many times do crickets chirp each minute?

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

Have you ever wondered how many numbers most people can memorize? Test your friends to find out!

Science fair project which examines how stopping a tomato's ripening process using the enzyme ethylene effects the tomato plant and its reproduction cycle.

Study the impact of environment on seed germination among three materials: soil, paper towel, and cloth. Note when seeds germinate and how well they germinate

The projects describes the correlation between Gravel Run and Centreville Landing in terms of pH, dissolved oxygen, turbidity, and temperature.

More height, more steep, more speed! This science project investigates whether there is a correlation between the height of the roller coaster and the slope.

Observe trends in the properties of writing materials over past 5000 years and extrapolate to future time. Prepare a table that compares writing material.

This science fair project idea demonstrates that light travels in straight lines and experiments with reflecting light.

This project explores whether nails, toothpicks, straws, or pen nibs are best for applying ink to paper.

This experiment will explore the possibility of creating an infinite object by hand.

Learn about the microclimate of your backyard by tracking rainfall, temperature, and observed weather with hand drawn charts and graphs.

This science fair project focuses on a polymer called hydrogel super absorbent crystal which absorbs water, swelling to many times its original size.

The objective of this science fair project is to determine whether there are gender differences when boys and girls view optical illusions.

This optics-based science fair project idea teaches kids about real and virtual images with a mind-bending candle illusion inspired by Pepper's Ghost.

Measure the densities of various fruits and vegetables to determine if there is a relationship between density and nutritional value.

In this simple circular motion experiment, you'll observe tangential velocity and learn about how acceleration and centripetal force affect an object.

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

The moon doesn't produce its own light, so why can we see it shining in the sky? Learn about reflection and planetshine in this fun and easy science project!

In this science fair project, students will create a model of a shoreline, observe erosion and examine how jetties prevent erosion.

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.

Science fair project that demonstrates the process known as refraction, which allows glasses and contact lenses to help people with poor vision.

Measure the porosity of rocks by submerging them in water. Measure how much water each rock "drank," by measuring the difference in water volume.

This easy aerodynamics activity is a simple way to introduce kids to the scientific method.