What are the effects of fertilizer on plant growth? What's the best fertilizer type (solid, liquid or powder)? Kids find out in this science fair project idea.

The objective of this science fair project is to analyze the effects of salinity and temperature on water.

This science fair project idea investigates how a bottom keel helps keep a boat from rocking back and forth.

In this investigation, three different juices are tested to determine which juice contains the greatest amount of vitamin C.

Can you increase the light and plant growth in your garden using mirrors? In this experiment, measure light reflection and find out!

What is the best stain remover for clothes? In this fun and easy science fair project idea, students will identify the best method for laundry stain removal.

How does distance affect the spreading of light? Kids see diffraction and the inverse square law of light in action with this great science fair project idea.

This science fair project idea investigates if heat from direct sunlight is hotter than heat from reflected sunlight.

This science fair project idea produces varying pitches of sound.

This science fair project idea is develops new or improved paper making techniques and encourages recycling.

This science fair project teaches kids experimental design and how to test if subjects can really sense if they are being watched.

Does the temperature of a magnet affect its strength? Learn about the relationship between magnets and temperature with this cool physics science fair project.

This science project challenges students to learn about and classify weeds and discover new practical uses for weeds.

In this fun science fair project, make two different scale models of our solar system using Astronomical Units and planets' relative size!

Will storing cucumbers and tomatoes in the fridge destroy their unique flavors? Find out in this science fair project idea!

Students will investigate the thermal conductivity of metals by learning how to measure thermal conductivity with this fun and easy science fair project idea.

Does dough rise faster with unbleached or bleached flour? Investigate in this science fair project idea.

This science fair project idea investigates whether plants can survive being frozen.

Watch pre-packaged seeds and seeds taken from inside fruits and vegetables grow. Which ones will grow faster? Read more in this science fair project idea.

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

Will potatoes spud or sprout faster in dry, dark, or cold conditions? Find out in this science fair project idea!

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

Find out which kind of bubble wrap fares best when put in impact.

This science fair project idea examines whether adding gelatin causes a solid to have a higher melting point and/or melt slower.

This science fair project idea experiments with spinning color wheels and optical illusions.

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.

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

This science fair project idea examines whether the colors of the spectrum respond differently in the thermal aspect when radiated by the sun.

This science fair project idea researches the different layers of the atmosphere and creates a visual representation of the atmospheric layers.

Science fair project that examines the different types of precipitation, evaluates the density of snow and calculates the ratio of snow-to-liquid.