Did you ever add salt to pasta? Did it help cook the pasta faster? If not, find out in this science fair project idea.

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

In this science fair project, kids start a chemical reaction that will make a balloon inflate itself!

Science fair project idea which teaches you how to make butter by separating cream into butter and buttermilk.

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

Ready for takeoff! Make science fun and teach about levers and fulcrums as your child sends buttons flying.

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

Your child will learn science and make a fun new malleable toy with this balloon sandbag science experiment.

Discover that the absorbency of fabrics depend largely on the shape and structure of the individual fibers that make up the fabric.

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

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

Make a spring collage with your child to get them outside and those creative juices flowing!

Learn how to make a ping pong ball anemometerâa device used to measure wind speedâin this free 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.

These flying potato poppers make a cool sound, create a celebratory mood, and they can teach your child about the power of air pressure.

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

Make water and clay play a little more scientific with this hands-on experiment that teaches displacement and shows how an object's shape affects its buoyancy.

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

A homemade lava lamp gives any room a retro flair. Find out how to make a homemade lava lamp, and learn some science too, with this educational activity.

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

Make a planter full of delicious seasonings and classic grilling vegetables, great for a Fatherâs Day gift or a fun start-of-summer outdoor activity.

In this science fair project, students learn how pressure can make the minerals in a rock line up in the same direction and form bands and foliation.

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

In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

Teach your child how to make an all-natural, yellow-brown dye, using just walnut shells and water. This deep dye can be used on textiles, art, and wood.

Science fair project idea that examines different physical characteristics of a chosen animal. Make educated guesses about evolution based on animal's form.

Check out this fun science fair project to make a vinegar and baking soda balloon and demonstrate how gas is created as a result of the chemical reaction.

What are buttress roots? In this fun science project, make a model of a rainforest tree and learn how they help trees survive in the tropical rainforest!

Show your fourth grader how to see her heart in action. Make a simple device out of a drinking straw and clay to help her spot the movement of her pulse!

Roasting pumpkin seeds makes for a great Halloween activity, and a healthy snack!