3rd - 7th Grade Science Resources : Page 34

This cool science fair project teaches kids about temperature, density and buoyancy using balloons that float with normal air. No helium required!

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

In this science fair project, students will create a model of a shoreline, observe erosion and examine how jetties prevent erosion.

Science fair project in which you will start a fire from scratch without using matches or a lighter.

Would your dog prefer homemade or store-bought food? Raw or cooked? Test your dog's preferred diet in this fun experiment.

Grow a garden with an environmentally-friendly twist by using plant scraps that usually get thrown away.

Can you increase the light and plant growth in your garden using mirrors? In this experiment, measure light reflection and find out!

How sensitive is your skin? Here's a fourth grade science experiment that lets your child figure it out.

The goal of this science fair experiment is to demonstrate the effects of air pressure on objects and analyze applications of air pressure principles.

This science fair project idea explores whether factors such as temperature and concentration affect the pH of a solution.

In celebration of Earth Day, help your fifth grader write a poem from the Earth to its inhabitants.

Encourage a group of third graders to play this fun game of Whistle Hide-and-Seek as a warm-up to get them prepared for finding a "lost" camper.

Discover whether the â5-second ruleâ is effective at determining whether food is still safe to eat after being dropped on the ground.

Learn to solve a crime scene investigation using an important forensics tool: oblique lighting.

This science fair project idea explores whether people have an innate feel for the passing of time from a few seconds to 20 minutes.

Your third grader will be amazed at the explosive combination of vinegar and baking soda in these chocolate volcano cupcakes with white chocolate "lava."

With this science fair idea, little scientists will gain valuable insights into the physics behind throwing a baseball.

Help your child create a magical miniature garden in the most unlikely of places: a recycled plastic bottle!

What is it about a Slinky that causes it to walk down the steps? This simple experiment is a perfect illustration of both gravity and momentum.

What happens when eyes see something that the brain knows cannot be true? In this science activity, the brain has to "fudge" it when interpreting what you see.

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.

Learn about the microclimate of your backyard by tracking rainfall, temperature, and observed weather with hand drawn charts and graphs.

Wind is an important source of renewable, green energy. The purpose of this science fair project is to build and operate a windmill generator.