4th and 5th Grade Engineering and Science Inquiry Resources : Page 3

Learn all about balance and motion as your child designs a corn maze!

In this science fair project, learn how to make gears and find out why they transmit torques in predictable ways.

This science fair project idea investigates emulsifiers that allow oil and vinegar to mix.

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

This science fair project idea develops an understanding through experimentation of which shapes are the most structurally strong.

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

Children will learn all about cause and effect as they experiment with potion-making in this Halloween themed activity.

In this fun science project, learn about what happens to cut fruit and experiment with how to stop apples from turning brown.

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

In this science fair project, students make their own rain gauge to measure rainfall.

This science fair project idea discovers if an artificial light source will yield the same plant health and growth rates as light from the sun.

Learn about magnifying glasses, concave lenses and inverted images by sending rays of light through a magnifying glass in this cool science fair project!

In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

How do series and parallel circuits work, and which produces the brightest light in a light bulb? Construct both in this project and find out!

In this CD hovercraft science project, students will construct their own DIY hovercraft.

Little scientists will make inferences about hearing loss, pitch, and frequency in this great science fair idea that puts the human ear to the test.

This science fair project idea measures out the sugar of various foods and find out whether people can correctly determine how much sugar is in common foods.

What's the chemistry behind dyeing Easter eggs? Will adding vinegar to dye help the eggshell absorb the color? This colorful science project has the answers!

Does electricity move better through thick wires or thin ones? kids will conduct this classic electricity experiment for this science fair project.

In this fun activity, your child will create their very own solar oven to bake s'mores!

In this design challenge, your child will make a bottle rocket using typical household items.

Kids conduct a cool balloon rocket experiment in this fun science fair project idea. Does a greater volume of air mean a greater distance traveled?

The objective of this science fair project is to observe the differences in heat absorption for darker colors vs. lighter colors.

Science fair project which teaches you about the principles of physics within a vacuum by creating a vacuum chamber.

This project examines if computer screen and text color affect retention and if people subconsciously prefer combinations of colors that help their retention.

In this science experiment, do tensile strength test on fishing line, a strand of hair, a rubber band, and any other materials you're curious about!

Challenge your learner to design and build a city of their own in this creative engineering activity.

What's the relationship between temperature, air humidity and static electricity? Kids will find out with this free static electricity science fair project.

In this fun science fair project idea learn about universal solvents and solutes and find out the solubility of several common liquid substances.

Brine shrimp usually live in saltwater. Investigate how salt concentration (salinity) affects the rate at which brine shrimp eggs hatch.