The American Biology Teacher
By Marek, Edmund
“Understandings and Misunderstandings of Biology Concepts”
Publisher: University of California Press
1/48
Pp. 37-40
1986
Understandings and Misunderstandings of Biology Concepts
Type: Empirical
Data collection method: Test
Number of subjects, range: Large — 31 or more
Grade and age of subjects: 9th-12 grade — 15-18 years
- The molecules in the water accept the blue dye so then as the molecules in the water move so does the dye.
- The blue dye spread (sic) through the water because water is semi-permeable (sic) therefore the dye could spread throughout it
- The blue dye is heavier than the water so it spreads throughout the water making a chemical change occur
- Water is the universal solvent and is in more mass than the dye so from gravity and movement, the dye would slowly make the water turn blue.
- The cells of the water and the cells of the dye are moving through the water and passing through each other.