What are CAT Stickers? CAT Stickers are stickers coated with a mixture of cold activated thermochromic dye and paint pigment. CAT Stickers can be purchased here: CAT Stickers. The CAT stickers … [Read more...]
Coloring Changing Colorants
What is a Colorant? A colorant is a substance used to color a material, such as thermochromic and photochromic dyes aqs well as pigments in paint. What does thermochromic mean? thermochromic = … [Read more...]
Why setting hens don’t break their eggs.
Did You Know? Thomas Edison was a very curious child. It is said that he observed a goose sitting on her eggs, and his mother explained that the hen was keeping the eggs warm so they would hatch. … [Read more...]
Why Scorpions Glow in UV Light?
Glow In the Dark Chemicals The exoskeleton of scorpions contain phosphors, which are chemical that can absorb high energy photons of invisible UV light and emit lower energy photons of … [Read more...]
Water Movement Through Xylem
Do Plants Suck Up Water? The cartoon diagram shows a flower using a straw to drink water from an underground stream. I've never seen a flower drinking through a straw, but water underground is pulled … [Read more...]
Q & A Growing Bacteria
Question: Growing Bacteria My family successfully grew bacteria in nutrient agar. Our samples came from our hands after petting the dogs, swabbed samples from the fridge door, and an exterior … [Read more...]
Electromagnetic Radiation: Infrared Light
The Sun Emits Electromagnetic Radiation Please don't panic! Yes, I understand that the term electromagnetic radiation is a lot to swollen. But many adults learned the word … [Read more...]
Earthquakes: Cause and Effect
Earthquakes are usually caused when rock underground suddenly breaks along a fault. This sudden release of energy causes the seismic waves that make the ground shake. When two blocks of rock or two … [Read more...]
Vision: Why we see things
Why do we see different colors? Why does cloth look darker when it is wet? Electromagnetic radiation is light energy. The Sun emits electromagnetic radiation, which contains gamma rays, x-rays, … [Read more...]
Adventures in Barrow, Alaska
For more information about my south pole adventures see: Follow Janice and Randy to the South Pole. photo credit: 阿拉斯加巴羅-鯨骨拱門-20130530-賴鵬智攝-1 via photopin (license) … [Read more...]
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