TY  - ADVS
AU  - Alfonso,Ozzie
AU  - Nathanson,Brad
AU  - Burgess,Janice
AU  - Anderson,Douglas
TI  - Facts of light: refraction 
T2  - 3-2-1 classroom contact
AV  - Q162.G786.F338 1991 
PY  - 1991///
PB  - Distributed by GPN
KW  - Films for the hearing impaired
KW  - Refraction
KW  - Juvenile films
KW  - Study and teaching (Elementary)
KW  - Light
KW  - Science
N1  - Teacher's guide available separately from GPN, PO Box 80669, Lincoln, Nebraska 68501, 1-800-228-4630; Originally shown on television; Camera, Greg Andracke ; editor, Paul Morton; Elementary and middle school; 2
N2  - The ability of light to bend is an important factor. A ray of light travels in a straight line, but can be refracted, or bent, when it travels at an angle from one material into another
ER  -