1. If a student pours a solution of salt water on an elodea leaf, what is it an example of?

2.A child pours salt crystals on the body of a slug he finds in the backyard.

Options are: high concentration, low concentration, osmosis, diffusion, hypertonic solution, and hypotonic solution. Explain what events take place.

1. If a student pours a solution of salt water on an elodea leaf, it is an example of a hypertonic solution.

Explanation:

To understand why it is a hypertonic solution, we need to know the definitions of hypotonic, hypertonic, and isotonic solutions.

- A hypotonic solution has a lower solute concentration compared to the solution it is being compared to.
- An isotonic solution has the same solute concentration as the solution it is being compared to.
- A hypertonic solution has a higher solute concentration compared to the solution it is being compared to.

In this case, the salt water solution being poured on the elodea leaf has a higher salt concentration compared to the leaf's internal environment. As a result, water will move out of the elodea leaf through the process of osmosis, which is the movement of water from an area of lower solute concentration to an area of higher solute concentration. This leads to water leaving the elodea leaf, causing the leaf to wilt or shrink.

2. If a child pours salt crystals on the body of a slug, it is an example of a high concentration.

Explanation:

In this scenario, the salt crystals being poured onto the slug's body constitute a high concentration of salt compared to the slug's body fluids. When salt comes into contact with the slug's body, it causes the water to move out of the slug's cells through osmosis. This leads to dehydration and eventually death for the slug.

Therefore, the event taking place in this scenario is the movement of water from an area of lower salt concentration (the slug's cells) to an area of higher salt concentration (the salt crystals poured on the slug).