Science Projects

Quartz crystals commonly occur in nature. — A crystal is a form of matter in which the atoms, molecules, or ions are arranged in a highly ordered three-dimensional lattice. Crystals are also called crystalline solids because most crystals are solid. However, liquid crystals also exist. The word “crystal” comes from the Greek word krustallos, which means both […]

What Is a Crystal? Definition and Examples Recently updated !

This entry was posted on March 28, 2020 by Anne Helmenstine (updated on March 28, 2020)

A seed crystal is a small crystal used to promote growth of a larger one. — A seed crystal is a small crystal that is used as a base to grow a large single crystal. Without a seed, crystals form slowly from random intermolecular interactions. When the seed is placed in a saturated or supersaturated solution it acts as a nucleation site. This decreases the time […]

How to Grow a Seed Crystal Recently updated !

This entry was posted on March 25, 2020 by Anne Helmenstine (updated on March 28, 2020)

Fire writing with invisible ink — Fire writing is a fun science project. You write a message using invisible ink, let it dry, and then reveal the secret by touching a flame to the edge of the text. The message burns away, leaving the paper untouched except for the fire writing. Fire Writing Materials You only […]

Fire Writing With Invisible Ink Recently updated !

This entry was posted on March 24, 2020 by Anne Helmenstine (updated on March 24, 2020)

Brainstorm to get elementary school science project ideas. — Elementary school science projects are fun and educational, but coming up with a great idea can be challenging. If the project is for a science fair, there’s competition to win. But, the focus of the project should be on engaging a child in science and raising interest in how the […]

Elementary School Science Project Ideas Recently updated !

This entry was posted on March 22, 2020 by Anne Helmenstine (updated on March 22, 2020)

Green Crystal Needles — Grow a quick cup of crystal needles in your refrigerator. The whole project takes between 15 minutes and 2 hours, from start to finish. All you need is Epsom salt, water, and a little food dye if you want a pop of color. Materials Epsom salt (magnesium sulfate) Water (hot […]

How to Grow a Cup of Quick Crystal Needles Recently updated !

This entry was posted on March 20, 2020 by Anne Helmenstine (updated on March 28, 2020)

Customize the classic slime recipe by making green leprechaun slime to celebrate St. Patrick’s Day. The slime isn’t sticky, so it won’t work as a leprechaun trap, but the vibrant green color may lure them close. It’s a fun holiday chemistry project for kids of all ages. Materials Leprechaun slime […]

Green Leprechaun Slime for St. Patrick’s Day

This entry was posted on March 14, 2020 by Anne Helmenstine (updated on March 14, 2020)