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.
Home » Balance: Center of Gravity

Balance: Center of Gravity

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Free Shapes for Mobiles from Smart Chick

Smart Chick's Free Mobile Shapes found on www.TeachersPayTeachers.com

These shapes are part of the FREE set of blank shapes that can be used to create mobiles.

A FREE set of blank shapes that can be used with students to help them to create mobiles. Mobiles can be made with science concepts, vocabulary, etc. They are a lot of fun and a fun way to learn about about science topic! The shapes from Smart Chick can be printed on white or colored card-stock. The Free shapes are not colored.

Smart Chick on www.teacherspayteachers.com

How to Make a Mobile

The video below gives one way of preparing a mobile, but the fun is to use your imagination in hanging the pieces so that they balance.

 

55050: Janice VanCleave"s Gravity: Spectacular Science Projects Janice VanCleave’s Gravity: Spectacular Science Projects

    Balancing HammerScience Magic

An object or group of objects, such as a mobile, always hangs so that its center of gravity (CG) is in line with or below the point of suspension (pivot point-where it is supported)

The diagram of the balancing hammer belowis a still shot from the video. As long as the center of gravity of the system (yardstick, string, hammer) is in line with the pivot point (where the system is supported) it will balance.