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This science experiment tests if dog saliva can really help heal wounds.

Learn about the architecture of Asia by building your very own model of a pagoda!

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.

In this science fair project, learn how to make gears and find out why they transmit torques in predictable ways.

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!

By using your child's own activity schedule, you can strengthen his understanding of elapsed time, and get him organized along the way!

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

Here's a fun activity that will give your child a way to develop his sentences, making them more detailed and interesting.

Dive into the world of cooking oil and smoke points to discover just how fast some oils start smoking.

Can you plant the insect-attracting borage plant to increase the amount of beneficial insects in your garden? Find out in this experiment!

Here's a fun arts and crafts activity that has you and your child creating a book with a secret hollow!

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.

Check out this cool science project idea to learn about rocks and explore the cycles of formation, breakdown, and reformation of rocks in the Earth's crust.

The objective of this science fair project is to set up a compost bin to convert food scraps and organic waste.

Use chemical analysis to identify a variety of mystery powders that look the same but actually have very different properties.

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

What is biodiversity? Kids will study different areas of their backyards to see which is the most diverse to learn about biodiversity and random sampling.

Observe corn seed germination to learn about dicots and monocots and how plants grow from seeds to seedlings to full-grown plants!

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

In this cool physics experiment, use double plane mirrors at various angles to learn about light reflection. Then, see if you can solve a puzzling problem!

This science fair project uses paper chromatography to investigate whether black, brown, orange, and purple are pure colors or mixtures of other colors.

Help your children practice their presentation skills by helping them create their very own show called "The Daily News."

Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.

Here is a cool and easy science project to determine the rate of chlorophyll breaks down and how it affects the color change of grass from green to yellow.

Science fair project that determines whether mass and weight are the same or different.

Make an elegant Mother's Day card to celebrate the love and work in raising kids.

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

Science fair project that examines how yeast grows, and which conditions allow for optimal growth. What types of nutrients does yeast prefer?

In this microwave plant experiment, find out whether microwave radiation will affect radish seed germination. Will it help or hinder the plants' growth?

What causes the seasons to change? Kids find out by modeling the earth's tilt using a globe, flashlight and graph paper in this cool science fair project idea.