4th - 7th Grade Science Activities : Page 9

Find out whether matte or shiny nail polish lasts longer.

Determine whether butterflies like to drink sugar water, salt water, or plain water.

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

This science fair project idea examines the reason boats are shaped and engineered.

The objective this science fair project is to determine whether a bigger bag will allow a homemade hot air balloon to fly higher than smaller bag.

Believe it or not, the common spud has enough electrochemical energy to power a small digital clock.

This science fair project idea determines which method of hand cleansing is the most effective.

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

Try this chemistry experiment with your curious kid and get some "shocking" results!

This science project challenges students to study deer behavior in their natural habitat- the feeding patterns, social behaviors, male to female ratio, etc.

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.

This easy at-home experiment is a great way to "see" science.

This science fair idea examines hydrogel superabsorbent polymer crystals. They can absorb 500 times their weight in water. Can they absorb other liquids too?

Kids will learn how to measure the viscosity of liquids by making their own homemade viscometer in this great science fair project idea.

Here is a cool and easy science project to determine the rate of chlorophyll breaks down and how it affects the color change of grass from green to yellow.

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

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

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

There are hundreds of properties in rocks which you can describe, so get your geology goggles on and get ready to rock your child's science skills.

This fun science project helps to investigate how much water can a plant take up and release in a certain period of time through the process of transpiration.

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

An hour glass, also known as a sand clock, keeps time. In this activity, your child will make her own sand clock and measure the time it keeps.

Science fair project that develops latent fingerprints on a non-porous objects by converting superglue from a solid state to a gaseous state.

Every time a sound is produced it emits a sound wave. This experiment demonstrates how sound travels, using nothing more than a spoon and a string!

Kids will learn about the interaction of lactose and lactase in milk and discover why we describe enzymes as catalysts in this fun science fair project.

How good are humans at sound localization? Kids can try this cool science fair project idea to see how good their friends are at judging sound direction.

This science fair project idea explores whether mint, known for its âcooling sensationâ really does lower temperatures.

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

This science fair project idea produces sounds by creating vibrations using different objects.

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.