Science fair project that explore how compound motion works by examining how gravity is affected by horizontal force.

What is a compound microscope? Kids find out by making one of their own in this cool science fair project.

Looking for a project on machines? Get a fun elementary school science fair project idea to design a compound machine using your knowledge of simple machines.

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!

Get this cool middle school science fair project idea on how to conduct a flame test to detect the presence of certain metals in chemical compounds.

This fun elementary school science fair project idea helps students in designing an amusement park using their knowledge of forces and simple machines.

Measure the effectiveness of detergent containing a UV-absorbing compound in blocking UV-A radiation. Use black light and UV detecting beads.

Many substances are compounds of different elements. This experiment combines iodine and zinc to make zinc iodide.

The objective of this science fair project is to explore the relationship between acidic and basic compounds.

Science fair project that identifies the nature of ionic and covalent bonds and determines how ionic and covalent compounds differ.

This science fair project idea explores what common compounds can be easily separated out in a centrifuge.

This science fair project idea investigates emulsifiers that allow oil and vinegar to mix.

In this project combining nature, art, math, and science, children make rubbings of leaves then observe shapes and structures and sort the leaf images.

Determine how we can separate the components of a solution

Kids explore how a single movable pulley can confer a mechanical advantage over a fixed pulley in this cool engineering science fair project for 2nd grade.

Discover the wonders of simple clay by pressing flowers into a modeling medium!

This science fair project idea identifies trees using a dichotomous key.

Learn about magnifying glasses, concave lenses and inverted images by sending rays of light through a magnifying glass in this cool science fair project!

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

Science fair project that examines oxidation, reduction and chemical indicators by testing for the presence of the iodide in salt.

Show your child how to concoct a simple duo of household ingredients that changes color as acids and bases are added!

Get your hands on a concoction that breaks the rules about what's a solid and what's a liquid.

Why are some pennies shiny and others dark and dull? Find out with this cleaning copper coins experiment, which transforms dark pennies to bright ones.

Kids love the dramatic Mentos and Diet Coke experiment conducted in this awesome science fair project.

In this fun science fair project idea learn about universal solvents and solutes and find out the solubility of several common liquid substances.

Science fair project that uses distillation to convert salt water into fresh water.

In this science project idea learn about working of different types of smoke detectors and find out which one is the most effective for you.

Help your fifth grader trace your family's roots and interview all the living mothers to create a makeshift, 3-D family tree!

In this science experiment, test the pH of soil surrounding a gas station to determine if gas stations have a negative effect on the environment.

With this hands-on activity, you'll show how fall colors are hidden in the leaf all year long!