1st - 3rd Grade Engineering and Science Inquiry Resources : Page 3

Learn whether Mylar Balloons last longer than Latex Balloons or vice versa.

With this cool floating rocks project, your child will get some hands-on experience with buoyancy and learn why certain rocks like pumice are able to float.

The objective of this science project was to build a model of a volcano and observe reaction between different substances, including baking soda and vinegar.

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

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

Discover whether cold or hot water from the faucet will boil faster on the stove.

How does smell affect taste? Ready your taste buds--in this project, you'll gather some test subjects and do a taste test to see how much smell affects taste.

This science fair project idea explores whether talking to a plant will help it grow.

Learn how starch and carbohydrates interact with different solvents in this fun and easy packing peanut science fair project.

This science project challenges students to study deer behavior in their natural habitat- the feeding patterns, social behaviors, male to female ratio, etc.

Reinforce your child’s understanding of the alphabet by helping them construct all of the letters using pipe cleaners.

Science fair project that examines what causes thunder and why a thunderclap sounds so loud. How is lightening related to the creation of sound waves?

Do you love to make Jell-O? Find out in this science fair project idea if it is possible to make Jell-O with just warm water.

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

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

Science fair project that determines whether cooling eggs helps them be peeled more easily. Compare the time it took to peel each egg.

How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.

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 experiment tests whether warm or cold water works best in making cut flowers last longer.

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.

Why does honey crystallize? This science fair project project answers this question and identifies the variable that makes this sweet solute crystallize faster.

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.

Certain fruits can change gelatinâs ability to set. In this experiment, kids will discover what happens when gelatin meets pineapple enzyme.

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!

Kids learn how to manipulate additive and subtractive colors to send secret messages with red colored filters in this cool science fair project idea.

How powerful is the reaction between baking soda and vinegar? Find out here!

Here's a great activity that uses corks and toothpicks to create a fleet of floating boats. Which design makes for the most seaworthy vessel?

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

Demonstrate the properties of pressure and surface tension to explain how water can stay inside an upside down glass using cardboard.