This project explores whether nails, toothpicks, straws, or pen nibs are best for applying ink to paper.

This science fair project idea examines the reason boats are shaped and engineered.

Science fair project that compares the freezing temperature of salt water and freshwater in order to learn about supercooling and condensation nuclei.

If your science savy third grader is up for a challenge, let her bend light with a casserole dish!

Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.

This science fair project idea provides evidence that air is everywhere and takes up space.

This science experiment has students test whether a snail moves faster on concrete or dirt.

In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

This easy at-home experiment is a great way to "see" science.

What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

Handedness and footedness refer to whether people prefer to use their left or right hand and foot. In this experiment, test hand and foot dominance.

Cleaning can be a chore, but not with this sudsy experiment!

Science fair project which examines the relationship between frequency of spider web vibration and spider's response time.

Help your child create a magical miniature garden in the most unlikely of places: a recycled plastic bottle!

Popsicles aren't just for the summertime, this activity takes cold and turns it into a creative and tasty science experiment.

In this science fair project, students create their own miniature salt flats at home.

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.

Have your child make a holiday scarf with inexpensive materials, no sewing required!

This hands-on family activity gives your child practice creating compound sentences, while teaching him skills that will help him become a better writer!

The goal of this science fair project is to discover the science behind carbonated soft drinks and apply this knowledge to create a new one.

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

Science fair project that examines the different types of precipitation, evaluates the density of snow and calculates the ratio of snow-to-liquid.

What can you do with hair after its cut? This science project teaches you practical uses for human hair.

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!

A heart ornament is a adorable decoration that shares the love on Valentine's Day. Make a heart ornament with your child this February.

Re-purpose an old glass bottle into a cute vase using a few pieces of felt and a little imagination.

In this hands-on design challenge your child will make their very own Rube Goldberg Machine.

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

Liven up your Christmas decor with vibrant reindeer created from cardboard. This decoration can hang above a fireplace, over a door, or across a wall.

Take some inspiration from the past and create some wood block prints with your fourth grader.