Get a cool science fair project idea for middle schoolers on the effect of adding sugar to the growth of green plants.

This experiment will explore whether adding different substances to a gel affects its strength.

What happens when colored beams of light mix? You might be surprised.

Did you ever add salt to pasta? Did it help cook the pasta faster? If not, find out in this science fair project idea.

The objective of this science fair project it to determine whether adding ethanol alcohol to gasoline slows the run time of a motor.

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

Kids discover what a homogeneous mixture is by adding sugar to distilled water and identify the various factors affecting solubility.

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!

Demonstrate the capillary function in plants by adding food coloring to glasses of water. Slice stalks of celery and leafy tops. Compare color of leaves

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

Do you love to make Jell-O? Find out in this science fair project idea if it is possible to make Jell-O with just warm water.

Got a young scientist at home? Try this project with him!Create your own molecule design with this home-made clay recipe and some toothpicks!

This cool science fair project teaches kids about temperature, density and buoyancy using balloons that float with normal air. No helium required!

Observe if dissolved aspirin will help plants grow healthier and faster in this science fair project idea.

Why do plants wilt? Kids will learn to think critically about what environmental factors affect plants, and what plants need to survive.

Determine whether carpet placed on a lawn will kill grass and weeds. Choose an area of lawn that you would like to remove, record grass that is dead or dying.

Make scented sensory cloud dough. Add it to a sensory table, activity station, or put it in a baggie for extra at-the-park entertainment!

What is mulch? Kids will provide soil with a wet blanket of mulch and see if that helps keep drought-stricken soil damp.

This science fair project explores how salt and sugar affect the melting rate of ice in water.

What's the best way to make DIY compost? Kids will learn about aerobic and anaerobic decomposition while learning to appreciate the value of composting.

Take the plunge into handcrafting with this neat and tidy soap recipe. Here's how to create your own personalized soap.

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

In this free science fair project idea, we learn about surface tension and how it can support mass—in this case, a floating paper clip.

Show your child that the simplest ingredients (salt and water) can be used to illustrate the concept of density!

Make this easy composting dessert and then enjoy the yummy results!

This clay "painting" activity encourages and supports creative development and critical thinking skills.

This science fair project idea explores whether dogs do look like their owners.

Find out whether soil amendments can improve soil conditions and help you grow a bigger beanstalk in this ecology experiment!

In this fun science fair project idea, kids will experiment with various methods in order to discover the fastest way to cool a soda.