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

Here's an interactive, fast-paced game that will make your fifth grader feel more comfortable with simple equations.

This heart print makes the perfect simple and sweet gift for Valentine's Day!

Help your preschooler grasp the concept of ordering and sequence while teaching him valuable vocabulary with simple activities around the house.

Tic-tac-toe is tons of fun, but the traditional version can get a little monotonous after a while. Mix it up and try this colorful outdoor version!

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

This science fair project looks one of the most important factors affecting seed germination: water. A fun and easy plant biology experiment for 3rd graders.

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

This simple heat transfer experiment is a great introduction to the concepts of heat transfer and conduction.

Help your preschooler chart her good eating habits with this arts and crafts activity that has her making a healthy fruits and vegetables rainbow and graph!

With this fun craft activity, your child can design and "make" his own money, for use as currency and math practice at home.

Got a kid who loves fashion? Help her develop her own unique style with this tie-dye project using natural dyes.

This science fair project idea determines which flower lasts the longest.

Get estimating with this spooky activity that asks your young mathematician to rely on their problem-solving skills to figure out how many items they believe are in spooky Halloween jars!

The goal of this golf science fair science fair project is to determine whether the temperature of a golf ball affects its elasticity and its rebound.

Learn how to make a hygrometer to measure relative humidity in this project. Make a sling psychrometer hygrometer with gauze, thermometers, and a bottle.

Help your preschooler create ice cube bead necklaces to cool off while practicing gross motor skills and sequencing, and discussing states of matter.

Check out this cool science project idea to explore how temperature creates annual rhythms that govern plant growth.

Little scientists will make inferences about hearing loss, pitch, and frequency in this great science fair idea that puts the human ear to the test.

Compare air temperature with the infrared temperature from a reflecting surface at different times of the day, in shade and in sunlight.

Race to double numbers in this competitive card game. Try one-digit or two-digit numbers, or more!

These cute holly-shaped hair clips are a breeze to make for holiday celebrations. They make a great party activity, too!

This science fair project idea determines whether land or water warms more quickly and investigates how solar radiation increases the temperature of surfaces.

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

How does frost form? How fast does it form? Do this simple science project using a plastic glass, rock salt and some water to learn about deposition.

In this science fair project, students examine how temperature affects sugar transport within a plant.

What's my number? Go ahead and guess! This logic game focuses on number sense that suits all ability levels, as players' questions can be simple or complex.

Test whether cutting up meats will make it cook faster than just cooking it whole.

Get your child excited about measuring with this fun and easy household measurements activity.

How does bleach kill bacteria? Kids find out in this impressive bacteria science fair project by testing different concentrations on a safe strain of E. coli.