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.

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

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

Invite your kindergarten scientist to conduct this color mixing experiment to discover which primary hues make a rainbow of secondary colors.

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

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!

Use this fun activity to make an optical illusion picture that helps your kindergartener explore the sense of sight, and sharpen his observation skills!

This science fair project examines whether ocean water can be made safe to drink.

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

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

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

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

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:

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

Hold a magnet marathon! Explore the power of magnets with your kindergartener in this entertaining and simple science game.

This science fair project idea investigates food preference of birds.

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

Make scented sensory cloud dough. Add it to a sensory table, activity station, or put it in a baggie for extra at-the-park entertainment!

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

Help your child explore chromatography, which is the process of separating colors or pigments, and create a neat art project in the process!

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

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

Here is a kindergarten activity that blends art and science by using magnets, paint, and objects found around the house to create a picture.

This recipe makes bubbles that not only blow up nice and big, but do tricks and experiments! How do you do it? It's not a secret, it's science!

Set up a fun guessing game for your curious kindergartener, one that will test her ability to use all five of her senses.

Help your kindergarten scientist predict and observe as she explores the science of smell...and have a great time doing it, too.