Simple machines / author, Jo Ann Merrel ; illustrator, Keith Vasconcelles.

"Introduces students to the excitement of scientific discoveries and experiences ... [These hands-on activities are designed] to stimulate young minds."

Bibliographic Details
Main Author: Merrel, Jo Ann.
Corporate Author: Vasconcelles, Keith.
Format: Book
Published: Huntington Beach, CA : Teacher Created Materials, Inc., c1994.
Series:Hands-on minds-on science.

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