Let your fabulous crafter use their favorite flowers, fruits and herbs to whip up a delicious perfume that they can proudly present to a friend or a loved one.

This science fair project explores how osmotic pressure forces water through the root up into the plant.

Teach your child how butter is created by shaking up cream the old-fashioned way.

Make some easy homemade yogurt with your young scientist, and see what a few 'live' bacteria can do in the right conditions!

In this science fair project, students examine under what conditions individual plants release seeds and how far the seeds are released.

Chemistry isn't just incredible ... sometimes its edible! These crystal lollipops are a delicious introduction to chemistry concepts.

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

In this activity, you'll not only make your own bouncy balls at home, but your child will also learn how polymers are made.

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

This science fair project on testing water hardness is a great introduction to practical chemistry. Test and learn the difference between hard and soft water.

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.

In this science fair project, students make their own rain gauge to measure rainfall.

In this hands-on design challenge your child will make their very own Rube Goldberg Machine.

In this fun science fair project, make two different scale models of our solar system using Astronomical Units and planets' relative size!

This science fair project idea compares biodiversity between drops of water.

Try hammering some plants with your kids to teach them a valuable lesson in flower science while making beautiful artwork in the process!

Stories change as you retell them. The objective of this science fair project is to demonstrate how information gets interpreted, distorted and changed.

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

In this design challenge, your child will make a bottle rocket using typical household items.

This 4th of July, explore fourth grade science and make some safe fireworks in your own backyard using soda pop!

This science fair project idea determines if the color of light affects the growth of plants.

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

This science experiment tests if dog saliva can really help heal wounds.

In this activity your child will create their very own marble maze!

Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.

In this science fair project, students will try to discover if test subjects can detect the presence of Monosodium Glutumate (MSG) in food.

How does distance affect the spreading of light? Kids see diffraction and the inverse square law of light in action with this great science fair project idea.

The purpose of this science fair project is to determine which conditions and materials quicken the composting process to make the best compost.

Kids learn how to prevent erosion by growing grass. They'll test soil with grass against raw soil in this revealing science fair project idea for 4th grade.

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.