VanCleave's Science Fun

Your Guide to Science Projects, Fun Experiments, and Science Research

ABOUT THE SOUND PICTURE

With mouth wide open, vibrating air coming up the throat from the vocal chords leaving the open mouth and spreading in all directions. 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 and now am creating this science website.   My scream was not staged. The picture was to be of two adult cats, which I was holding. A microsecond before the camera snapped, the two cats dug their claws into my skin as they prepared to leap out of my arms. A picture like this is great for making inferences. Kids could make "guesses" as to why I am screaming. They would be drawing on facts from the photo, such as I look like I am in pain or maybe I am just pretending.

Sound Supplies and Sound Investigations

Educational Innovation Sound Supplies A black and yellow logo for Educational Innovations. A place to find fun science supplies.

Snow Globe Activity

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Question: Why does “snow” in snow globes fall slowly? Answer: The “snow” can be plastic glitter or some even use finely ground egg shells. What ever is used for snow, it must be able to fall through the fluid that fills the jar (the globe). Fluid is a term used for a gas or a […]

Cohesion: Attraction Between Like Molecules

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Cohesion is the attractive force between like molecules, such as between two water molecules or between two syrup molecules. The syrup in the photo forms a single cascading stream because the syrup molecules are attracted to each other. Discover Cohesion Yourself Wet your thumb and forefinger with water. Press these two fingers together, and then […]

Viscosity

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LIQUIDS FLOW Because liquid particles can move past each other, they can flow. This is very important when transporting liquids from one place to another through pipes or water ways. VISCOSITY is a measure of the resistance of a liquid to flowing. The viscosity of a liquid increases as the temperature of a liquid decreases. […]

Polymer: Slime Facts

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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 […]

Snow Globes

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I love snow globes. Have you ever wondered what makes the glittery stuff  inside the globe drift down slowly? It really does look like falling snow? 1.One factor is the viscosity (thickness) of the liquid. Viscosity is a fancy scientific name for describing the resistance of a fluid (gas or liquid) to flow. It could […]