Engineering and Science Inquiry Activities : Page 34

This experiment evaluates how a diet that is rich in "mood-enhancing" foods affects the way people feel over several weeks.

Find out the differences (if any) in the frequencies of voices produced from a computer, from a phone, and directly coming out of the voice box of a human.

Test products which claim to reduce wrinkles, and determine which is the most effective. Test effectiveness over three weeks, using a sample of volunteers.

Play with balance and simple engineering as you hurry to create a sturdy rock tower.

Science fair project that compares the properties of different fabrics to determine whether natural or synthetic fabrics are better at wicking away moisture.

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.

The objective of this science fair project it to determine whether adding ethanol alcohol to gasoline slows the run time of a motor.

Kids will make predictions about cricket behavior by conducting this fun and easy experiment which simulates different environments for crickets.

This science fair project idea investigates food preference of birds.

Demonstrate how tracks are formed by pressing your hand into a cornmeal mixture, then reverse the process and make prints of the track.

Get a cool and easy science fair project idea which helps high school students in understanding concepts behind the working of a microphone.

The goal of this science fair experiment is to demonstrate the effects of air pressure on objects and analyze applications of air pressure principles.

In this plastic wrap science fair project, you'll learn about polymer permeability and find out which plastic wrap keeps food from dehydrating best.

Science fair project that helps you better understand density by comparing the relative densities of cans of Coke and Diet Coke.

In this awesome science fair project idea, kids will be attempting to pick up different objects using snail slime.

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

Create a homemade pair of sunglasses with colored lenses to see just how light and color affect our sight! Use this fun project to practice science!

This science project lets students explore the number of spots on a ladybird and how to treat ladybugs with respect.

Design a livable building that functions without electricity. Consider necessities, comforts and entertainment. Build a scale model of your design.

Check out this cool science fair project idea to explore the relation between onions and eyes and how to prevent eyes from tearing while cutting an onion.

What is a barycenter? Kids learn how gravity and mass influence the orbit of binary systems like planets and moons or stars and planets in this cool experiment.

Science fair project about different digital image file types, compares different encoding algorithms used to compress the data.

This science fair project idea investigates how the shape of an object affects drag.

Check out this cool science fair project idea on spectrum spinners and investigate how certain color combination can produce other colors.

Test your friends to find out if you can replicate the placebo effect's incredible results.

Can you plant the insect-attracting borage plant to increase the amount of beneficial insects in your garden? Find out in this experiment!

In this science fair project, students will use four different household objects to see which ones form the most or best crystals.

Science fair project that determines the correlation between the ability of selected materials to conduct heat and a material's density.

Try this fun garden graphing project with your kindergartener this summer to give him a leg up in math and science while spending some valuable time outdoors!

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