2nd - 8th Grade Engineering and Science Inquiry Activities : Page 9

This science fair project idea teaches how the gases and pollution in the air affect the earth's atmosphere temperature.

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.

The goal of this science fair project is to demonstrate different ways to generate static electricity and record its effects.

Kids will learn how to make a steam powered rocket boat, also called a putt putt boat or a pop pop boat, in this great science fair project for 4th graders.

Observe corn seed germination to learn about dicots and monocots and how plants grow from seeds to seedlings to full-grown plants!

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 science fair project, students use the streak test to tell minerals apart from each other.

Have you ever seen fruit decay? Find out if a fruit will rot faster if you open it versus leaving it untouched!

Create a DIY Electromagnet! Using a 9v battery to create an electrical field around a nail, students explore electromagnetism in this cool science project idea.

In this open-ended activity, students will be given a small quantity of three types of materials and asked to design a prototype for “something that will improve the school.”

The objective of this science fair project is to test the growth rate of a plan in a crystal medium in comparison to traditional soil.

Did you even wonder why some rocks are round and smooth while others are broken up into small pieces?

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

In this science project, learn about water transport in plants and make a beautiful dyed floral arrangement with cohesion, adhesion, and xylem tubes!

Here is a fun middle school science project on factors affecting solubility. Learn how dissolved solids can "crash out" to form crystals when conditions change.

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

Build a 3d animal cell model with this cool science fair project, which helps kids visualize and understand the function of a cell's parts and organelles.

This science fair project idea researches the different layers of the atmosphere and creates a visual representation of the atmospheric layers.

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

In this project combining nature, art, math, and science, children make rubbings of leaves then observe shapes and structures and sort the leaf images.

Kids construct a single fixed pulley system to learn how pulleys can make work easier in this cool physics and engineering science fair project idea.

Crayons aren't just good for creating colorful masterpieces -- they're also great for science!

Enter the buzz worthy world of bee watching and find out what time bees like to wake up!

This science fair project idea investigates if webbed feet help a duck (and others) swim.

Kids will discover the meat science behind the meat they eat, and find out how to use safe chemistry to make meat more tender.

Kids get step-by-step instructions for how to make a rubber band car and explore the physics of potential energy with this fun engineering science fair project.

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

This science fair project teaches students about wilting and browning of salad greens.

Science fair project that examines condensation and the conditions needed in order for dew to form.

Learn how to demagnetize a magnet and how physics can explain this phenomenon with this enlightening science fair project.