How Far? How Small? Data Table

Distance from hole in viewer to ruler - 10 cm

Actual height of object __________ cm

Distance Between
Object and Ruler

Apparent Height of Object

Ratio = Actual Height
Divided By Apparent Height

1st Observer

2nd Observer

10 cm

cm

cm

_____ / _____ = ______ cm

20 cm

cm

cm

_____ / _____ = ______ cm

30 cm

cm

cm

_____ / _____ = ______ cm

40 cm

cm

cm

_____ / _____ = ______ cm

50 cm

cm

cm

_____ / _____ = ______ cm

60 cm

cm

cm

_____ / _____ = ______ cm



How Far? How Small? Data Table

Distance from hole in viewer to ruler - 10 cm

Actual height of object __________ cm

Distance Between
Object and Ruler

Apparent Height of Object

Ratio = Actual Height
Divided By Apparent Height

1st Observer

2nd Observer

10 cm

cm

cm

_____ / _____ = ______ cm

20 cm

cm

cm

_____ / _____ = ______ cm

30 cm

cm

cm

_____ / _____ = ______ cm

40 cm

cm

cm

_____ / _____ = ______ cm

50 cm

cm

cm

_____ / _____ = ______ cm

60 cm

cm

cm

_____ / _____ = ______ cm



Science Learning Network / email: sln@mos.org / © 1997 The Museum of Science