In this project children practice the scientific method while playing with puffy paint.

Study how liquids separate into layers by creating a liquid gradient, different density liquids separate into layers in a graduated cylinder.

Store bowls of fresh fruit in differently lighted environments. Contrast freshness based on appearance.

Your preschooler can learn how to siphon water with just two bottles and a plastic tube in this fun, educational science activity.

Test your friends to find out if you can replicate the placebo effect's incredible results.

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.

The objective of this science project was to build a model of a volcano and observe reaction between different substances, including baking soda and vinegar.

Wreath ornaments decorate your Christmas tree and act as a fun sensory craft for preschoolers. Make wreath ornaments with your child this holiday season.

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

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.

Kids will learn some cool stuff about chemical reactions by determining what happens when you mix different concentrations of hydrogen peroxide and yeast.

Science fair project that creates fog using bottles of hot and cold water.

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!

This fun science project explores the climate change over the course of the history of Earth and helps construct a diorama representing a geologic time period.

Science fair project that determines what percentage of air is made up of oxygen by examining the chemical reaction between oxygen and rust.

Science fair project that helps visualize how the human brain functions by constructing a model of a brain.

Children will learn all about cause and effect as they experiment with potion-making in this Halloween themed activity.

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.

Determine how good we are at direct and indirect observation.

The objective of this science fair project is to examine the effects of temperature on salt and water solutions, as they form crystals over time.

Science fair project in which you will examine how crystals are formed by creating your own crystal using charcoal briquettes, salt, and ammonia.

Create a colorful, informative display that illustrates the properties of blood cells. Prepare slides using samples of fresh raw beef or chicken bone marrow.

In almost every preschool classroom is a sensory table. Learn how to make one at home!

Discover the interactions of synthetic dyes and natural dyes on natural and artificially-made fabrics.

Kids will learn how to make a thermometer to to explore liquid density in this great science fair project. Which liquids are affected by temperature the most?

In this design challenge, students will be tasked with creating a bouncy ball polymer!

Discover how to make fake snot with this cool science fair project idea to learn about polymers, enzymes, and more.

This easy and inexpensive paper towel science project introduces kids to important physical concepts like cohesion, adhesion, and capillarity.

Children have a naturally inquisitive mind. Foster their curiosity with a walk through an autumn field or park to answer age-old “why” questions. As you walk with your child, you can encourage them to ask questions.

In this experiment, you'll make a seafloor spreading model to learn more about how plate tectonics work and create mid-ocean ridges.