Sink or swim? Calculate the density of various fruits and vegetables using water and a kitchen scale.

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

This science fair project idea explores whether boiling and freezing water will have an effect on how much it weighs.

In this exciting design challenge, your child will use design thinking skills to create a mixture that can inflate a balloon.

In this experiment you will replicate the mummification process by making a hot dog mummy.

This Mother's Day, mix in some fifth grade science learning to create this fabulous fudge!

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.

Dive into the world of cooking oil and smoke points to discover just how fast some oils start smoking.

A simple science experiment exploring the physics of water pressure that's been amazing people since Medieval times.

Create a soda bottle garden that defies gravity! This hanging terrarium is housed in a soda bottle and perfect for crafty kids with a growing green thumb.

This experiment that explores water and air pressure will amaze your fifth grader as it appears that a single card is holding water in an upside-down glass.

In this cool experiment, learn how to find specific gravity of minerals using liquids of different densities to see which substances and items sink and float.

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

Check out this mind-blowing experiment in which a hard-boiled egg will fit through an impossibly small opening with the help of only a few matches!

Science fair project that determines whether tapping a pomegranate with a spoon helps it release its seeds.

Examine which metal conducts more heat by boiling water in 3 pans made of aluminum, copper, and stainless steel.

Check out this cool science fair project on identifying rocks and minerals for kids.

Science fair project that determines whether cooling eggs helps them be peeled more easily. Compare the time it took to peel each egg.

Show your fifth grade scientist how to create a siphon using two buckets, plastic tubing, and water. Watch her astonishment as the water travels uphill!

Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

Here's an experiment that will have your child experimenting with cake ingredients to learn about the chemical reactions that happen when a cake's in the oven.

This science fair project focuses on a polymer called hydrogel super absorbent crystal which absorbs water, swelling to many times its original size.

Why do ants like sugar? Do ants like artificial sweeteners too? Kids find out with this great inquiry-based science fair project.

Students explore hot desert plant adaptations in this cool science fair project by observing how these organisms prevent excessive transpiration.

The rock cycle will come alive for your child when he uses broken crayons to create the three basic rock types.

This science fair project idea measures the growth of bread dough and finds out how long it takes for the dough to stop rising.

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

Is horse manure a possible energy source in a crisis? Use calorimetry to find out how much energy horse manure can produce in this science fair project.

Get your fifth grader involved in some earth science by helping her plan and create her very own rock collection.