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Diamonds to Gas

By Janice VanCleave

diamond pendant

Smoking Diamonds Did you know that a diamond will burn? At one time it was believed that objects burned because fire could enter them. Very hard things didn’t burn because there was no spaces for the fire to enter. Thus, diamonds were thought to be too hard to burn. Many early “scientists” did not experiment […]

Filed Under: Chemistry Tagged With: burning. oxidation

Carbon

By Janice VanCleave

Carbon: A Natural Element There are 100+ different kinds of elements found naturally on Earth. Carbon is one of them. Carbon is fun to study. Carbon atoms link together forming different kinds of stuff. For example, the diamond shown in the photo is made of carbon atoms. Question: Are the carbon atoms in diamonds just […]

Filed Under: Chemistry

Hygroscopic

By Janice VanCleave

Wood is hygroscopic, which means it attracts water. When wood fills with water, the wood swells. You can use this physical chararacteric of wood to perform what appears to be magic, but instead ===it is fun science! Discover For Yourself 1. Bend five round wooden toothpicks into a V shape without breaking them apart. 2. Place […]

Filed Under: Chemistry

Polymer: Slime Index

By Janice VanCleave

Pink Slime

This page contains links for information on this website about slime. Have Fun!!! Research about Slime Glossary What makes slime a dilatant? (Gets thicker when stirred or quickly pulled.) Why is slime so viscous? Recipes for Slime: Polymers Using Corn Starch Translucent Slime Using Glue Fluorescent Slime Slime Stuff Just for Fun Slime Creatures Produced […]

Filed Under: Chemistry Tagged With: slime index

Dilatant: Slime

By Janice VanCleave

Slime is a cross-linked polymer. A polymer is made of large molecules made of repeating units called monomers. A cross-linked polymer means that there are links connecting the molecules, much like the rungs in a ladder. The ladder diagram is similar to a cross-linked polymer only in the parts making it. The cross-linked polymer molecules […]

Filed Under: Chemistry

Polymer: Slime Facts

By Janice VanCleave

Elmers glue and other comparable school glues are polyvinyl adhesive (PVA). Slime is made by mixing PVA glue with a solution of borax. Slime is a polymer, which is a chemical consisting of large molecules made of a linked series of repeating units called monomers. The polymer slime produced is not as runny as the PVA glue […]

Filed Under: Chemistry Tagged With: borax, polyvinby adhesive, PVA, slime, viscosity

Polymer:Translucent Slime

By Janice VanCleave

Homemade Slime Recipe 1. In a small jar, make a Glue Solution by mixing 4-ounces (1/2 cup) of Elmer’s Glue Gel with 1/2 cup of tap water. Mix thoroughly. 2. In a second small jar, make a Borax Solution by mixing 1 teaspoon of Borax powder with 1 cup of tap water. Mix thoroughly. 3. […]

Filed Under: Chemistry

Slime Glossary

By Janice VanCleave

Slime Pink

The terms on this page relate to the physical and chemical characteristics of SLIME as well as other fluids with comparable characteristics. Dilatant fluid is rheopectic, which means sudden forces causes an increase in viscosity. Fluid is a term used for anything that can flow; gases, liquids, and non-Newtonian fluids. Newtonian fluid is a fluid […]

Filed Under: Chemistry Tagged With: slime

Starch Slime

By Janice VanCleave

Slime:Cornstarch and Water. MESSY?? You bet. FUN?? Absolutely 1. Pour 2 cups of corn starch into a large bowl. Tip: It is difficult to give an exact recipe for making cornstarch slime because  humidity can be a factor. So, I have suggested that you start with a 2:1 ratio of corn starch to water. 2. […]

Filed Under: Chemistry Tagged With: slime, Teaching Tips

Glowing Slime

By Janice VanCleave

Fluorescent materials glow only during the time of exposure to ultraviolet light. In the photo, the glowing materials are absorbing ultraviolet light from a black light source. If the black light shining on the slime is shut off, the slime ceases to glow. You can make glowing homemade slime using the liquid in a fluorescent […]

Filed Under: Chemistry

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Welcome to Janice’s Science Extravaganza!

The spoon hanging from the string vibrates when struck and these vibrations are transmitted through the string and the sound is amplified by the plastic cups. ABOUT ME: Hi, I am Janice VanCleave, author of 50 best-selling science experiment books for children ages 4 through high school. I taught science for 27 years. MORE.....

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