Help your second grader observe the phases of the moon, and then let the fun loose: he'll get to chart his observations with marshmallows!

Boost your preschooler's attention to detail by getting her to explore the differences between two different pumpkins: large and small.

In this fun activity, frozen cubes of paint provide your preschooler with a cool new way to paint a masterpiece.

Here's a math, science, and social studies activity: help your kindergartener become a "coin archaeologist" by examining how different coins look and feel.

Alive or not? This yeast experiment you can conduct with your little scientist explores the answer to this timeless question.

Determine which environment keeps an ice cube frozen for the longest duration. Inspect and record your observations when cubes melt.

In this activity, you'll send your kindergartener on a scavenger hunt to find sounds and create a sound recording. Here's how!

Your child will create an adorable Christmas tree from their footprint and practice counting while decorating their tree with objects of a variety of textures.

In this fun guessing game, your child uses his sense of smell and taste to figure out what is in the container. Here's how to play:

The purpose of this science project is to investigate which will grow larger plants: compost, soil and Miracle - Gro, a mixture of both.

This science fair project idea investigates food preference of birds.

Determine how different measurements of the same object might yield different values. Provide as many reasons that you can think of.

Determine how good we are at direct and indirect observation.

In this outdoor science activity you'll find tips on how to create a nature journal by choosing a native plant or animal and tracking that species.

In this science fair project, kids measure how weather conditions affect how fast a puddle evaporates.

Explore this fun middle school science fair idea to learn about photosynthesis and the key role of light in the growth of green plants.

Magnets may hold up papers on the fridge, but is it the paper that attracts them? Find out more with this kindergarten science investigation.

Determine the efficiency of multi-tasking by comparing how long it takes students to complete different tasks. Collate data, complete Summary Chart.

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

This two-ingredient dough, sometimes called "moon sand," is a quick and cheap way to let kids explore their senses, build fine motor skills, and play.

This science fair project idea creates an underwater habitat and explores the basic needs of living things under water.

The goal of this science fair project is to determine which cheese grows mold the fastest: Vermont Cheddar, American, Brie, or Camembert?

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

This cool and easy elementary school science fair project idea provides the basic information on the use of our senses to experience the world about us.

Help children understand the power of germs and the importance of hand washing with this visual activity that introduces the concept of scientific inquiry.

This science fair project idea shows how a vibrating object transfers energy to whatever it touches.

This science fair project idea produces sounds by creating vibrations using different objects.

introduction to organic chemistry. study what happens when polymer molecules are mixed with borax solution.

Determine if certain colors of light are more effective for photosynthesis. Plant seeds in cardboard boxes with different light, record visible growth.

This science fair project idea investigates the hardness property of minerals.