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Use simple materials to build a "worm hotel" with your kindergarten soil scientist...and see what worms really do all day.

Use simple items to create a kindergarten "grow box" that lets a kid see just how salad plants send down their roots and grow underground.

What chromosome combinations determine a fetus gender? Use probability to think about whether a sperm and ovum will create a male or female in this project.

This activity challenges students to use computational thinking as they create a sequence of commands that will make a robot move in a pattern related to the sound and rhythm of music.

Satisfy your kindergartener's fascination of different sounds with this easy science project, where they'll use their ears instead of their eyes to identify sounds!

This science fair project idea explores whether a sundial is as accurate as an atomic clock when telling time.

This plaster fossil activity is a fun supplement to preschool science. Use plaster to make imprints of your child's handprints, footprints and other objects!

This science fair project focuses on a polymer called hydrogel super absorbent crystal which absorbs water, swelling to many times its original size.

In this project, create and examine garden mulch to find out what critters live in the messy, muddy layers just above the soil.

In this design challenge, your child will use building bricks to create a funny face. The activity instructions include question prompts thta can help guide your child through the creative process, and promote their problem-solving skills.

The objective of this science fair project idea is to examine light refraction as it passes through liquid crystals.

This science project has students collect wood samples and invent new uses for different types of wood based on its properties.

Learn about the power of exponents. The objective of this science fair project is to explore and understand how exponents are used.

Science fair project that uses muriatic acid to develop fingerprints that would otherwise be invisible.

In this science fair project you will make a model of a cell membrane using very simple material.

The objective of this science fair project is to examine the basic principles of air pressure using simple materials like a balloon, straw and string.

In this project students experiment with making music using only glasses of water.

This project uses science and art to help students learn and teach others about Earth's endangered and extinct species.

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

In this experiment you observe and determine how well your cat uses his whiskers to navigate through a maze.

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

This science fair project uses paper chromatography to investigate whether black, brown, orange, and purple are pure colors or mixtures of other colors.

Demonstrate the properties of pressure and surface tension to explain how water can stay inside an upside down glass using cardboard.

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

This science fair project idea explores whether the process used to dry the beans we eat for food renders them unviable.

Tree rings can tell the age of the tree but also information about the world. This science experiment uses tree stumps to discover new facts.

Construct and experiment with a periscope using reflected light rays to gather an image.

Science fair project in which you will attempt to throw a ball the greatest horizontal distance possible by using different angles.

Create a DIY Electromagnet! Using a 9v battery to create an electrical field around a nail, students explore electromagnetism in this cool science project idea.

Science fair project in which you will start a fire from scratch without using matches or a lighter.