2nd - 8th Grade Engineering and Science Inquiry Activities : Page 5

Children will learn all about cause and effect as they experiment with potion-making in this Halloween themed activity.

This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.

In this exciting design challenge, your child will use design thinking skills to create a mixture that can inflate a balloon.

This project explores whether plants can live and grow when "watered" with juice, soda, or milk.

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

This science project uses Mohsâ Hardness Test to show kids how to compare the hardness of different types of minerals.

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

Kids will make a beautiful rainbow in a jar and learn what enables different types of liquids to remain distinct in separate layers.

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

Learn all about balance and motion as your child designs a corn maze!

Ever wondered how a plant drinks water? This science project will teach you how and help you create a beautiful floral display!

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

How does a flashlight work? Kids will make a complete circuit and explore how voltage contributes to brightness with this science fair project idea.

The objective of this science fair project is to observe the differences in heat absorption for darker colors vs. lighter colors.

In this science fair project, students make their own rain gauge to measure rainfall.

Students will investigate the thermal conductivity of metals by learning how to measure thermal conductivity with this fun and easy science fair project idea.

This science fair project explains the process of how the lungs expand and contract with the help of the diaphragm.

Kids will learn some cool stuff about chemical reactions by determining what happens when you mix different concentrations of hydrogen peroxide and yeast.

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

In this science fair project, learn how to make gears and find out why they transmit torques in predictable ways.

This science project teaches young students about germs, bacteria, and the importance of washing their hands. Students will test what is the best way to wash.

Have your child kick off their summer vacation by making a miniature water slide!

Science fair project which teaches you about the principles of physics within a vacuum by creating a vacuum chamber.

Learn how to tell time by the sun with this cool science fair project idea that tracks how the accuracy of a sundial changes over time.

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

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

This project determines whether Styrofoam, paper, or plastic cups are best for preventing ice from melting.

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

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