Question

A student places a drop of dye in a glass of water. The student sketches the appearance of the water at different times.

Information
A table.Short description, A table.,Long description,
Time (seconds after adding ink) 0 5 60
Observations There is a single small drop of green dye in the clear water. The green dye is a bigger blob, but the water is still mostly clear. The entire glass of water is a light green color, with some streaks of dark green.


Question
Why did the dye spread out in the water?

Answer options with 4 options
A.
Water molecules break dye molecules apart.

B.
Water molecules are lighter than dye molecules.

C.
Water molecules and dye molecules react chemically.

D.
Water molecules and dye molecules move constantly.

Answers

GPT-4o mini
The correct answer is:

**D. Water molecules and dye molecules move constantly.**

This option reflects the concept of diffusion, which is the process that causes the dye to spread out evenly in the water over time due to the constant motion of the molecules.