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Ward, Alan | 2 |
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Practitioners | 1 |
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Ward, Alan – Science Activities, 1974
Describes construction of a pinhole camera with simple materials and five experiments to be conducted, as well as instructions in creating a working camera obscura. (BR)
Descriptors: Elementary School Science, General Science, Instructional Materials, Laboratory Experiments

Ward, Alan – School Science Review, 1974
Descriptors: General Science, Junior High School Students, Optics, Physical Sciences