4th - 7th Grade Science Activities : Page 8

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

Science fair project examining barometric pressure, and how it can be used to predict the weather. How does atmospheric pressures relate to weather conditions?

Study the life cycle of the common blowfly as it relates to forensic investigation. Record the first time you see flies, maggots, and eggs.

This science fair project demonstrates the magic of arches by challenging students to stack telephone books on top of eggs without breaking them.

Teach your child some scientific basics as you explore the densities of various liquids in this fun experiment.

This experiment uses a yeast solution, liquid detergent, and hydrogen peroxide to produce an exciting reaction like no other!

This science fair project idea identifies trees using a dichotomous key.

Your kid can learn about the process of making frozen yogurt and enjoy a homemade, flavorful dessert. Experiment with this fun, chilly food!

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

Examine the effect of pressure on carbonation in soda.

This science fair project idea studies which brand of wintergreen candy produces the most sparks in the dark.

In this science fair project, we learn how air molecules move as a result of density, convection, and air currents.

In this outdoor science activity you'll find tips on how to create a nature journal by choosing a native plant or animal and tracking that species.

In this Bernoulli's Principle experiment, you'll learn how an increase in the speed of a fluid, like air, decreases pressure.

In this project, all you need is a protractor to learn how to use the altitude of Polaris to find latitude on Earth. Polaris is also known as the North Star.

Science fair project that examines the different types of precipitation, evaluates the density of snow and calculates the ratio of snow-to-liquid.

Check out this cool science fair project idea to explore which other common animals besides scorpions glow under a UV Black light.

Is cleaning with lemon effective? Get ready to give this science project some elbow grease and find out if acidic lemons can be used as a cleaning agent.

This science fair project idea examines whether plants are still able to grow normally if they are turned upside-down.

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.