Monthly Archives: February 2016

Spring Crystal Flowers — Grow pretty borax crystal flowers. These colorful flowers only take a few minutes to set up and a couple of hours to grow. It’s a fun project for kids and a great way to decorate with flowers that won’t ever wilt. Borax Crystal Flower Materials Now, I recommend borax because […]

Borax Crystal Flowers for a Spring or Easter Bouquet

This entry was posted on February 28, 2016 by Anne Helmenstine (updated on December 29, 2022)

Color Periodic Table With No Names — You can’t quiz students (or yourself) about the element names that go with the symbols if it’s all listed right there on the periodic table, so here is the periodic table without names. Here’s a handy dandy list of element names (which you can download as a PDF), in case you […]

Periodic Table Without Names

This entry was posted on February 26, 2016 by Anne Helmenstine (updated on May 17, 2021)

Scientific Method Word Search Solution — This scientific method word search puzzle contains terms relating to the scientific method. The terms can be found by searching vertically, horizontally and diagonally. Download the PDF and have fun trying to find the scientific method words. Definitions for the words are available in the scientific method glossary. Need a little […]

Scientific Method Word Search Puzzle

This entry was posted on February 24, 2016 by Todd Helmenstine (updated on May 17, 2021)

Why Kelvin Temperature Has No Degrees — Learn why there is no degree in the Kelvin temperature scale, yet there is one when reporting temperature measurements in Celsius or Fahrenheit.

Why There Is No Degree in Kelvin Temperature

This entry was posted on February 23, 2016 by Anne Helmenstine (updated on January 18, 2023)

Elements Named for People — Learn about the elements named for people or element eponyms.

Elements Named After People (Element Eponyms)

This entry was posted on February 22, 2016 by Anne Helmenstine (updated on December 20, 2021)

Pi is an irrational number. — Wondering about the significance of Pi Day? Here's what the math holiday means and when and how you celebrate it.

What Is Pi Day? Definition and Ways to Celebrate

This entry was posted on February 22, 2016 by Anne Helmenstine (updated on March 18, 2023)

Element Countries Crossword — This element crossword puzzle is full of names of different countries from around the world. To figure out which countries have been included, you will need to know the element symbols of the elements listed in the clues. Each clue is a list of elements. Piece together their element symbols […]

Element Crossword Puzzle – Countries of the World

This entry was posted on February 20, 2016 by Todd Helmenstine (updated on May 19, 2021)

A rainbow wand works by varying the pH of a solution from one end of a tube to the other. A pH indicator provides the color — An acid-base rainbow wand is an easy and colorful chemistry demonstration which illustrates the range of colors available for a pH indicator solution. Take a long glass tube and fill it with universal Indicator solution. Add a few drops of 0.02M HCl to one end of the tube and seal […]

Rainbow Wand Chemistry Demonstration

This entry was posted on February 18, 2016 by Anne Helmenstine (updated on December 20, 2021)

Food additives may be either natural ingredients or synthetic (artificial) chemicals. They are added to nearly all foods to improve flavor, prevent caking, slow decomposition, add color, and to improve texture. (Michael Stern) — A food additive is any substance added to food to improve its appearance, stability, flavor, texture, shelf life, or other characteristic. An additive could be either a natural substance or a synthetic chemical. Here’s a comprehensive list of food additives and their uses. Alphabetical List of Food Additives and Uses […]

Food Additives List – Names and Uses

This entry was posted on February 18, 2016 by Anne Helmenstine (updated on November 13, 2021)