Monthly Archives: December 2016

Brown Ink (Cody and Maureen, Flickr) — It’s very easy to make your own natural brown ink for writing, drawing, or crafts. Here is a brown ink recipe you can try. Brown Ink Ingredients 4 teaspoons loose tea or 4-5 teabags 1 teaspoon gum arabic 1/2 cup boiling water Prepare the Brown Ink Pour the boiling water […]

Brown Ink Recipe – Easy Chemistry Project

This entry was posted on December 29, 2016 by Anne Helmenstine (updated on May 17, 2021)

Connect an LED to a battery to make an LED glowie. Anne Helmenstine — Here are simple instructions for making your own LED glowies and LED throwies. LED glowies are glowing Light Emitting Diode or LED devices, while LED throwies are LED glowies that you can toss and stick onto any ferromagnetic surface. Both LED projects are easy and fun. Materials for LED Glowies […]

How to Make LED Glowies and Throwies

This entry was posted on December 27, 2016 by Anne Helmenstine (updated on May 17, 2021)

Borax Crystal Star (Anne Helmenstine) — Make a sparkling homemade crystal Star of David or other type of star to celebrate the holidays! This project is extremely easy, resulting in a keepsake ornament overnight. Crystal Star Materials Make the Star Shape To form a Star of David, bend a pipe cleaner into an equilateral triangle and […]

Make a Borax Crystal Star Holiday Ornament

This entry was posted on December 21, 2016 by Anne Helmenstine (updated on December 29, 2022)

Green Leaf (Stiller Beobachter) — Have you ever wondered why plants are green instead of blue or purple? It’s because they are chock full of chlorophyll. Plants use the pigment chlorophyll to absorb the solar energy they need to perform photosynthesis, converting carbon dioxide and water into sugar (glucose) and oxygen. Chlorophyll appears green to […]

Why Chlorophyll Is Green

This entry was posted on December 14, 2016 by Anne Helmenstine (updated on May 17, 2021)

Biology Word Search — Biology Word Search is a word search puzzle using glossary terms associated with middle school biology courses. These biology topics include words dealing with living systems, genetics, the cell, and the environment. The words can be found running left/right, up/down and diagonally within the array of letters. Word searches can […]

Biology Word Search – Science Word Searches

This entry was posted on December 12, 2016 by Todd Helmenstine (updated on May 17, 2021)

Earth Science Word Search — Earth Science Word Search is a word search puzzle using glossary terms associated with the Earth Sciences. The Earth Sciences include the study of meteorology, geology, and astronomy. The words can be found running left/right, up/down and diagonally within the array of letters. This activity can be a fun way to […]

Earth Science Word Search

This entry was posted on December 8, 2016 by Todd Helmenstine (updated on May 17, 2021)

Physical Science Word Search — Physical Science Word Search is a word search puzzle using glossary terms associated with physical science classes. Physical science classes are typically cover chemistry and physics topics but can include astronomy, geology, and meteorology. This physical science worksheet is a fun way to introduce 30 physical science glossary terms. Clicking the […]

Physical Science Word Search

This entry was posted on December 3, 2016 by Todd Helmenstine (updated on May 17, 2021)