This study is conducted to identify the alternative framework contained in the imagination of the students on the
concept of matter at submicroscopic level. The result shows that one of the alternative frameworks that exist in
the students’ imagination is macro imagination. In this study, students’ macro imagination is seen from four
concepts, namely hydrogen gas, hydrogen electron, hydrogen molecules collision and water molecules formation.
For the imagination of hydrogen gas, the most of imagination generated by the students are a cloud of smokes,
followed by the bubbles and no images while the movement of hydrogen gas is imagined as a moving up balloon
from a slow to fast motion. For the hydrogen gas bond, the students generated the image of something that
resembles a rope that exists between the atoms. In contrast, for the hydrogen electron, no images are produced.
Next, ‘white’ is imagined for the hydrogen molecules collision situation. Other than that, the students generated
the image of hydrogen molecules are floating slowly and releases more smokes and heats. After the collision, the
students are imagining the stars and hydrogen and oxygen breaks into four circles. Water molecules formation is
studied from the aspects of water molecules combination and condition of molecules during the formation. It can
be concluded that the majority of the students generates macro imagination with a tendency to hydrogen gas
image (7.14 percent) followed by water molecules formation (5.61 percent) and hydrogen molecules collision
(3.06 per cent) while no macro imagination are produced on the hydrogen electron.