4th Grade Engineering and Science Inquiry Activities : Page 4

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.

In this activity, students will create a stop motion animation by creating a clay figure and taking a series of digital photographs.

This science fair project idea demonstrates that light travels in straight lines and experiments with reflecting light.

This science fair project idea explores the egg's thin membrane.

Explore how sound waves are reflected and absorbed by producing echoes. Analyze which locations produce echoes.

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

This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

Ever wondered how a plant drinks water? This science project will teach you how and help you create a beautiful floral display!

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

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

This science fair project idea explores whether a plastic slinky works as well as a metal slinky when walking it down the stairs.

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

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

Discover whether cold or hot water from the faucet will boil faster on the stove.

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

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

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

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

Learn how to demagnetize a magnet and how physics can explain this phenomenon with this enlightening science fair project.

In this project students experiment with making music using only glasses of water.

Magnets vary in strength. Have your young scientist figure out which kind of magnet is the strongest when you have him conduct this attractive experiment.

How would you dry your wet clothes if your dryer didn't work? Find out with this fun experiment!

This science fair project idea examines which type of insulation holds in the most heat.

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

Stories change as you retell them. The objective of this science fair project is to demonstrate how information gets interpreted, distorted and changed.

Learn how to make a ping pong ball anemometerâa device used to measure wind speedâin this free science fair project idea.

This project determines what category of person is most likely to be ticklish.

Science fair project which determines whether the size or the thickness of a piece of paper has an effect on how many times it can be folded in half.

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

This cool and easy elementary school science fair project idea provides the basic information on the use of our senses to experience the world about us.