In this science fair project, young children discover what happens when two fluids that have different densities get together.

Discover whether a metal will expand under hot water.

Check out this cool science fair project idea to explore the risk of mechanical deterioration of artifacts placed in a storage box due to mold outbreaks.

Children learn the six parts of a plant...but do they really understand? Try this plant-themed meal plan to bring school science into the home.

Do you love to make Jell-O? Find out in this science fair project idea if it is possible to make Jell-O with just warm water.

In this science and engineering activity, children will explore types of tunnels and their purposes and then design and build a tunnel of their own.

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

Science fair project determines relationship between number and variety of insects and spiders by collecting and counting invertebrates in a ecosystem.

Get your child outside to observe the clouds, and get a fun exercise in science, writing, and arts and crafts! Here's how.

Be a chemist for a day and study the simple reaction between sugar and heat. Try heating sugar and see what happens!

Experiment about connection of senses of taste and smell. Using blindfold and noseplugs, administer blind taste test. Analyze results and organize data.

Want to boost math and science learning? Take a bug expedition and give your first grader practice observing and charting what they see.

This clay "painting" activity encourages and supports creative development and critical thinking skills.

This project examines what types of objects burn and which burn faster and cleaner.

Make sourdough bread...and learn some colonial history and modern science in the process!

Protozoa and ciliate and amoeba, oh my! The objective of this science fair project is for students to use a microscope and identify microscopic life.

Make a seed bomb and let your junior guerilla gardener spread flowers far and wide.

In this activity, students will think about the form and function of household objects as they compare and contrast kitchen serving spoons of various sizes and designs.

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.

This science fair project idea investigates which objects float and sink in honey, water, and oil.

In this exciting and empowering challenge, your child will construct a bridge using marshmallows and toothpicks!

This homemade barometer allows your little scientist to contemplate and compare different air and weather conditions.

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

This activity works well with a group or just with a parent and child, and it can make a great party game since it's both fun and inexpensive.

What is the hydrologic cycle and how does it work? Check out this fun and easy science project where you will model and learn about Earth's water cycle!

Science fair project that examines how winter storms form and the relationship between temperature, moisture and snow.

Grow these wheatgrass and alfalfa friends and watch their hair spring up in just a couple days!

This science project teaches students about organic farming and the benefits and disadvantages of commercial plant food.

This weather spinner will improve observation skills by encouraging children to examine and track weather details and patterns.

Young scientists will investigate people's preferences for saltiness, and make some inferences about genetics and diet.