Plant sunflower seeds , measure height, calculate average height, compare size and weight of heads. Interpret findings in detailed report.

Determine if picking up fallen food in 5 seconds or less prevents the transfer of bacteria from the ground.

Check out this hot project idea to culture bacteria and determine if the claims about the anti-bacterial properties of curry and cinnamon are true.

Determine if âdouble dippingâ chips really spreads more germs than dipping only once per chip.

Start your toy engines -- this is going to be a fast and friction-filled race!

Check out this cool science project idea to explore the differences in feeding behaviors of birds and if other species of birds also have color preferences.

Show your fourth grader how to see her heart in action. Make a simple device out of a drinking straw and clay to help her spot the movement of her pulse!

This science fair project idea addresses tempo, and whether faster or slower music works better as a study aid.

Here's an easy experiment that lets your first grader practice the scientific method, while watching a caterpillar eat.

Is it magic? No...it's the amazing, gravity-defying capillary action experiment! Kids will love this dramatic and enlightening science fair project.

The objective of this science fair project is to examine the cleanliness of salad preparation techniques.

Check out this fun science project idea to explore different types of starches and learn how removing starch affects the quality and taste of food.

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.

In this experiment, kids will see if pruning tomato plants makes them more fruitful and learn about the factors that contribute to a plant's fruit production.

In this cool science experiment, learn about magnetism and poles, and test magnet strength to find out if two magnets are twice as strong as one.

Science fair project that determines whether moths are attracted to one color of light more than others.

Science fair project that compares the ecology of different soil samples by identifying which sample has the most invertebrates living in it.

This science fair project idea models industrial oil spills and determines if they have an impact on wildlife living beneath the surface of the water.

Spiders don't go to grocery stores or fast food chains to get their food -- they set up traps and wait for their food to come to them!

Make sourdough bread...and learn some colonial history and modern science in the process!

In this insulation experiment, you'll learn which clothes keep you warm in the cold, and which make you shiver.

This experiment will evaluate bacterial content on toothbrushes before and after different cleaning methods to determine which method of disinfecting is best.

This science fair project idea tests the efficacy of both synthetic and natural antibiotics.

It's rhyme time! With this science fair project idea, your child will find out which words can be considered easy rhyming words, and why.

Give your child an introduction to food preservation by making and canning your own yummy, homemade pasta sauce!

Construct a model of radioactive decay. Learn more about radioactive decay by modeling the process using coin flips.

Want to see a great example of Newton's first law? Kids will learn about basic physics with this fun, ballistic experiment.

Check out this fun science fair project idea to measure bacterial colonies from door handles and explore the effectiveness of different cleaning agents.

In this experiment, your child will create two compost bins and see if he can determine what attracts fruit flies.

Kids conduct a cool balloon rocket experiment in this fun science fair project idea. Does a greater volume of air mean a greater distance traveled?