2nd - 8th Grade Engineering and Science Inquiry Activities : Page 15

This science fair project idea highlights decomposition rates by comparing how long it takes an item to decompose in a compost pile vs. a landfill.

Discover flight initiation distance as you play around in the park with this fun bird watching project!

Handedness and footedness refer to whether people prefer to use their left or right hand and foot. In this experiment, test hand and foot dominance.

Science fair project that identifies the differences between soils from different environments and attempts to figure out why those differences exist.

This science experiment tests why guacamole goes brown and if leaving the pit in will stop guacamole from turning brown.

This science project has students collect wood samples and invent new uses for different types of wood based on its properties.

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

The objective of this science fair project is to set up a compost bin to convert food scraps and organic waste.

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.

In this fun science experiment, kids will determine the best method for ripening avocados and discover the cool chemical reaction that makes this possible.

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

What are the benefits of good posture? Kids will learn about the cognitive effects of good posture through conducting and observing a controlled experiment.

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.

Science fair project that compares the freezing temperature of salt water and freshwater in order to learn about supercooling and condensation nuclei.

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.

How does water pressure change with depth? Kids learn how pressure works underwater with this cool and easy demo.

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!

Total alkalinity and pH personal care products are controlled to prevent skin irritation. Learn more about basic and acidic substances in this science project.

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

This science fair project idea explores how much force is needed to move a lever at different distances from the fulcrum.

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.