Search 4th Grade Science Projects : Page 2

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.

Experiment about connection of senses of taste and smell. Using blindfold and noseplugs, administer blind taste test. Analyze results and organize data.

Learn about the fruit fly life cycle in this experiment. Capture fruit flies to examine various stages of insect metamorphosis.

This fun experiment provides a concrete and visually striking illustration of photosynthesis.

Test whether plants can grow without sunlight and water.

Science fair project that examines what causes thunder and why a thunderclap sounds so loud. How is lightening related to the creation of sound waves?

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

Science fair project idea which teaches you how to make butter by separating cream into butter and buttermilk.

This science fair project idea provides evidence that air is everywhere and takes up space.

Could there be toxic chemicals lurking in the cupboards and closets of your home?

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.

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

Have you ever seen fruit decay? Find out if a fruit will rot faster if you open it versus leaving it untouched!

Find out whether packaged seeds actually do expire in this new science fair project idea.

Will potatoes spud or sprout faster in dry, dark, or cold conditions? Find out in this science fair project idea!

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

Science fair project which tests various sedimentary, igneous and metamorphic rocks to find out whether one rock family is stronger than the others.

What causes the seasons to change? Kids find out by modeling the earth's tilt using a globe, flashlight and graph paper in this cool science fair project idea.

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 idea produces sounds by creating vibrations using different objects.

This science fair project idea examines whether boys and girls differ in reflexes.

What are buttress roots? In this fun science project, make a model of a rainforest tree and learn how they help trees survive in the tropical rainforest!

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.

Is it amplitude? Weight? Length of string? Kids will discover what factors changing the period of a pendulum depends on in this fun and easy physics experiment.