3rd and 4th Grade Engineering and Science Inquiry Activities : Page 10

How well can people recall what they have observed. Test your knowledge in this fun experiment.

Learn about the role of Earth's rotation on the Coriolis Effect and hurricanes in this science project. Model the Coriolis Effect on a hurricane's direction.

Find the North Star, and measure your latitude! The purpose of this science fair project is to find latitude and learn about geographic locations.

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

Test whether plants can grow without sunlight and water.

Check out this cool science fair project idea that models the behavior of the cold desert plants: xerophytes and halophytes.

This science fair project idea explores how length affects the weight a bridge can hold.

This fun and easy middle school science fair project idea explores the topic of pollution and demonstrates if polluted soil affect the growth of green plants.

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

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

What is persistence of vision? With this hands-on science fair project idea, students will demonstrate this cool and dramatic phenomenon in their own classroom.

Cherries usually burst with flavor, but in this science experiment they burst with osmotic pressure. This science activity will blow your curious kid's mind!

In this experiment we will be determining whether birds prefer certain colors of seed.

The goal of this science fair project is to discover the science behind carbonated soft drinks and apply this knowledge to create a new one.

Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

Science fair project about work and energy which uses a simple mathematical formula to predict how far a jar will roll down an incline.

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

Do you have your isopods straight? Learn about sow bug and pill bug behavior by building a terrarium to study them in!

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

What animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.

This science fair project idea discovers whether there are some objects that do not fall at a constant rate.

This science fair project idea explores whether the process used to dry the beans we eat for food renders them unviable.

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.

The objective of this science fair project is to explore the relationship between acidic and basic compounds.

Make a backbone model to explore human anatomy and life science.

Check out this cool science project idea to learn about rocks and explore the cycles of formation, breakdown, and reformation of rocks in the Earth's crust.

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

Discover how to make fake snot with this cool science fair project idea to learn about polymers, enzymes, and more.

Marshmallows are made of sugar, water, and air pockets. Since the marshmallow is flexible, will air pressure cause it to expand when heated in a microwave?