4th - 6th Grade Engineering and Science Inquiry Activities : Page 4

In this challenge, students are tasked with creating an insulated cup that will keep beverages colder for longer than a regular cup.

This science fair project idea investigates how color affects temperature.

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

In this project, you will observe and record changes in sunspots over two weeks.

In this pinto bean germination experiment, you'll learn about how fertilizer aids in growing pinto beans into seedlings.

In this hands-on design challenge your child will make their very own Rube Goldberg Machine.

This science fair project idea determines what household items are good conductors of electricity.

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

Is there a relationship between caffeine and heart rate? Students will determine the effect of caffeine on heart rate in this fun science fair project.

In this simple science project, learn about what causes dew and what affects dew formation with a drinking glass, ice, and a soda bottle.

This science fair project teaches students the differences between fruits and vegetables.

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

This science fair project idea creates a sedimentary rock and to investigate what takes place during the rock cycle.

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

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

In this microwave plant experiment, find out whether microwave radiation will affect radish seed germination. Will it help or hinder the plants' growth?

In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

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

In this activity, your child will be challenged to create a device that protects an egg when it is dropped from a height of about 10 feet.

Use chemical analysis to identify a variety of mystery powders that look the same but actually have very different properties.

This science fair project idea explores the different properties of matter.

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

Find out whether a longer airplane will fly farther or a wider paper airplane.

This science project has students study a group of volunteer liars actively lying to study the behavior of a lie. Students see if they can figure out the truth.

This science fair project focuses on the use of the enzyme amylase found in human saliva to break down starch into sugar.

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

The goal of this project is to create an exciting topographical map out of dough.

In this science fair project, students create their own miniature salt flats at home.

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