This science project challenges students to learn about and classify weeds and discover new practical uses for weeds.

Would your child like to learn about a hidden world? All she needs to do is open her box of markers!

Science fair project in which you will learn more about the natural world by preserving and identifying different animal tracks.

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

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.

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.

The goal of this science fair experiment is to demonstrate the effects of air pressure on objects and analyze applications of air pressure principles.

Help your child learn about animal classification with this fun and delicious activity.

Learn all about balance and motion as your child designs a corn maze!

This science fair project will help students learn about non-vascular plants, such as mosses.

This experiment has students record rat behavior to learn about the benefits of rats and research rat myths throughout history.

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

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

Introduce your child to the world of motion and physics with a bit of marble play inspired by Sir Isaac Newton!

Learn about lateral earthquake motion and its effect on high rise buildings in this simple 4th grade earth science experiment.

In this pinto bean germination experiment, you'll learn about how fertilizer aids in growing pinto beans into seedlings.

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

Your kid can learn about the process of making frozen yogurt and enjoy a homemade, flavorful dessert. Experiment with this fun, chilly food!

Observe corn seed germination to learn about dicots and monocots and how plants grow from seeds to seedlings to full-grown plants!

Want to see a great example of Newton's first law? Kids will learn about basic physics with this fun, ballistic experiment.

Learn about the fruit fly life cycle in this experiment. Capture fruit flies to examine various stages of insect metamorphosis.

In this fun science project, learn about what happens to cut fruit and experiment with how to stop apples from turning brown.

Show your child how to construct a homemade thermometer. It's hands-on fun and a great way to learn about this important instrument!

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

Learn about magnifying glasses, concave lenses and inverted images by sending rays of light through a magnifying glass in this cool science fair project!

Kids will learn about the interaction of lactose and lactase in milk and discover why we describe enzymes as catalysts in this fun science fair project.

This is a fantastic and easy science experiment where kids will learn about elasticity by testing how high bouncy balls of different materials can bounce.

Do you have your isopods straight? Learn about sow bug and pill bug behavior by building a terrarium to study them in!

Kids build a desert food chain, desert food web, and desert food pyramid in this cool science fair project to learn about trophic levels and consumers.

4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.