Which public places harbor the most bacteria and germs? Test different environments to find out where the most bacteria live in this science project.

The rock cycle will come alive for your child when he uses broken crayons to create the three basic rock types.

In this science fair project, young children discover what happens when two fluids that have different densities get together.

Try this experiment to give your curious kid a more "solid" understanding of how temperature affects the states of matter.

In this science fair project, students use hot and cold water to simulate what happens when a warm front meets a cold one.

Make a poster with your child about what she wants to be when she grows up, while helping her practice her writing, researching, and artistic skills.

Determine whether a hot liquid cools off faster when liquid is added before or after a two minute wait.

This project explores whether plants can live and grow when "watered" with juice, soda, or milk.

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

The project compares three different methods of testing turbidity in water: the secchi disk, spectrophotometer, and turbidity test kit.

Let your kid experiment with textures among fabric and other materials that are smooth, rough, soft, or slippery—and then they'll make a texture book!

How do search engines work? What makes various search engines different? This project delves into the world of web crawlers, caching, indexing and algorithms.

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

In this science fair project, students examine under what conditions individual plants release seeds and how far the seeds are released.

Air resistance is a crucial factor when designing a parachute. In this science fair project, students find what type of material works best as a parachute.

This science fair project idea demonstrates how our fingers prune when in water.

Do different types of oil mix or stack? Find out in this science fair project idea!

In this science fair project, kids observe the expansion of liquids when frozen and determine if some liquids expand more than others in the freezing process.

In this activity, your child will explore what it means and how it feels to live in a community.

In this science fair project, we will test how different kinds and shades of hair respond to bleach.

Chinese New Year is a time when many different luck-bringing rituals are performed. In this activity your child will create a lucky trinket.

Being present is essential for learning, so help your child become more aware of their body and surroundings through an activity called "mindful walking."

This activity turns kids into word detectives - scouring their way through documents in search of their prey.

Using water, corn syrup, and sequins, your child can create a unique art project while exploring what happens when different liquids are mixed together!

The objective of this science fair project is to determine whether there are gender differences when boys and girls view optical illusions.

Discover whether different amounts of water added into a wine glass will produce a different pitch when their fingers are rubbed along the rim.

Let your fourth grade chef mix up butter and sugar with scientific principles about different states of matter, and get delicious toffee, too.

In this experiment, students find out what happens when a less-dense fluid interacts with a denser one, replicating the effect of cooler solid rock on magma.

Melt the ice, but save the lawn. The objective of this science fair project is to explore the effects of different substances on melting ice.

Kids make strong bubbles to investigate the effect different additives have on bubble life in this cool science fair project idea.