Monthly Archives: November 2018

These calcium chloride crystals grew spontaneously in a container of DampRid. — Calcium chloride crystals are easy to grow. The clear crystals are thin, six-sided shards that sparkle brightly. Materials All you need is calcium chloride and water: Calcium chloride (CaCl2) Water (H2O) Calcium chloride is commonly used as road salt to remove ice, in moisture control products such as DampRid, and […]

Grow Calcium Chloride Crystals

This entry was posted on November 29, 2018 by Anne Helmenstine (updated on October 10, 2021)

Sea grapes are single cells of a species of algae. (Robert Ricker, NOAA) — The only way to view most unicellular organisms is with a microscope. The vast majority of cells are very small. However, the largest single-celled organisms are visible to the naked eye and big enough to hold in your hand. The algae Caulerpa is generally recognized as the largest unicellular organism. […]

What Is the Largest Unicellular Organism?

This entry was posted on November 29, 2018 by Anne Helmenstine (updated on May 9, 2023)

Pure nickel is a silver metal with a slight yellow tinge. (Alchemist-hp) — Nickel is the chemical element with atomic number 28 on the periodic table with element symbol Ni. Its standard atomic weight is 58.6934 and its electron configuration is [Ar] 3d8 4s2 . It is a shiny silver transition metal that develops a slight yellow tinge upon exposure to air. Nickel is known […]

Nickel Facts – Atomic Number 28 or Ni

This entry was posted on November 19, 2018 by Anne Helmenstine (updated on May 10, 2021)

How to Make Snow Ice Cream - Recipes — Get easy and tasty snow ice cream recipes. Learn how to make snow ice cream using snow as an ingredient or just to freeze the recipe.

Snow Ice Cream Recipes

This entry was posted on November 16, 2018 by Anne Helmenstine (updated on January 10, 2022)

Molten Glass — Specific heat is the amount of heat per unit mass needed to increase the temperature of a material by one degree Celsius or Kelvin. These three specific heat example problems will show how to find the specific heat of a material or other information involving the specific heat. Specific Heat […]

Specific Heat Example Problem

This entry was posted on November 14, 2018 by Todd Helmenstine (updated on May 2, 2021)

Pure elemental cobalt. (Alchemist-hp) — Cobalt is atomic number 27 on the periodic table and element symbol Co. This hard, blue-gray transition metal is used in alloys and imparts a blue color to glass. Here are cobalt facts, including its properties, uses, and health effects. Cobalt Facts Discovery: Cobalt compounds have been used since the […]

Cobalt Facts – Atomic Number 27 or Co

This entry was posted on November 14, 2018 by Anne Helmenstine (updated on May 10, 2021)

Water forms a teardrop shape just before it falls from an object. (Ed Leszczynskl) — If asked to draw a raindrop, just about everyone draws a teardrop shape. When water drips from a surface, like the tip of a leaf, this is the shape it makes just before the drop falls. But, once the drop is released, it forms a sphere. Raindrops form spheres, too, […]

The Real Raindrop Shape Is Not a Teardrop

This entry was posted on November 10, 2018 by Anne Helmenstine (updated on May 10, 2021)

Science Word Search — Science has many branches. This science word search contains the names of 30 different branches of science. Find the words from the list forward and backward in vertical, horizontal, and diagonal directions. The puzzle is optimized to fit on a standard 8.5″x11″ sheet of paper, but it fits nicely on […]

Science Disciplines Word Search

This entry was posted on November 5, 2018 by Todd Helmenstine (updated on May 2, 2021)