This science experiment tests whether warm or cold water works best in making cut flowers last longer.

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

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

Explore the craters, maria, and highlands on the surface of the Moon! In this fun science project you'll create a 3-D model of the moon using paper mache.

Give your child an introduction to food preservation by making and canning your own yummy, homemade pasta sauce!

Help your child create a working lung model that fills with air just like the lungs inside of his own chest when he breathes.

Learn how to make a weathervane with this fun and simple meteorology project for fourth graders.

Science fair project that teaches you about chemical indicators and how to make your own in order to identify various mystery solutions.

Check out this fun and easy science fair project idea on germination of a seed and learn to identify exterior and interior parts of a bean seed.

Kids will discover the meat science behind the meat they eat, and find out how to use safe chemistry to make meat more tender.

Demonstrate how you can make your own compass using a magnetized needle. It also allows you to compare magnetic north and geographic north.

In this windmill model science project, you will build a windmill to learn about wheel-and-axle machines and how these simple machines are used to do work.

Learn the basic structure of a DNA strand, which is the double helix, how genes form together, and the resemblance DNA has to a twisted ladder. Create a model.

Kids learn about potential energy, and mechanical energy, and how to make power from water with one of our favorite renewable energy projects for kids.

This simple "how to make a water wheel" activity makes physics come alive for your child by demonstrating how different kinds of energy work.

Pair a planetarium visit with this fun art project that mimics the look of far-off galaxies.

In this game, players will learn interesting facts about animal adaption and practice them using a fun matching card game!

Help your child create a magical miniature garden in the most unlikely of places: a recycled plastic bottle!

Grow potatoes in a plastic bag—easy to grow and harvest, and yummy to eat!

Your kid will delight in creating an extraterrestrial vehicle from goods found around the house. There's no telling where her imagination will go!

This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

This science fair project idea explores plant growth from a bulb, root, and a stem and investigates asexual plant reproduction.