4th and 5th Grade Science Activities : Page 8

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

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.

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

In this activity, your child will make her own "quicksand" to better understand how a substance can be both fluid and solid at the same time.

Based on the concept of water's "freezing point," this activity entails the lowering of water's freezing point to chill ice cream!

Observe corn seed germination to learn about dicots and monocots and how plants grow from seeds to seedlings to full-grown plants!

This science fair project idea explores substances that cause a bubble to last longer.

In this science experiment, your child will test the strength of hollow structures in order to understand how strong bird bones really are.

Find out whether matte or shiny nail polish lasts longer.

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

This science fair project focuses on the use of a conductivity device that will determine if a substance dissolved in water can or cannot conduct electricity.

Are you looking for an out-of-this world activity that's both fun and educational? This solar system garland is a great way to introduce your child to astronomy.

Science fair project which simulates the global conveyor belts on a small scale, and observes the effects of wind, density and temperature on water movement.

This science fair project idea explores the different properties of matter.

The goal of this science fair project is to analyze differences between the taste and texture of frozen and fresh food.

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

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

Young physicists will wrestle with a discrepant event: the Hammer Ruler Trick. They'll make some inferences about torque, balance, and center of gravity.

Science fair project which evaluates different athletic shoes in order to find out whether any of them affect a person's ability to run.

Science fair project which measures whether tsunamis are more destructive when they are caused by an earthquake or by a meteor.

In this fun project, use a memory game to test various age groups and determine whether aging directly affects short-term memory loss.

Turn the common pastime of constructing paper airplanes into a lesson on the physics of aerodynamics and flight with this fun science activity.

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

This simple experiment serves as an introduction to the greenhouse effect.

Do different types of oil mix or stack? Find out in this science fair project idea!

Help your fifth grader trace your family's roots and interview all the living mothers to create a makeshift, 3-D family tree!

How to test for acids and bases? In this activity you and your child can make your own indicator from red cabbage!

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

In this experiment you observe and determine how well your cat uses his whiskers to navigate through a maze.

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.