Why (If You Are Careful)are You Able to Float a Needle

question 24

Multiple Choice

Why (if you are careful) are you able to float a needle on the surface of water?

• A) Water has adhesive properties.
• B) The surface tension that is a result of water's cohesive properties makes this possible.
• C) The covalent bonds that hold a water molecule together are responsible for this ability.
• D) A single needle is less dense than water.

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Definitions:

Inhibition Model

A conceptual framework used to describe how certain substances or processes decrease the rate or effectiveness of a chemical reaction or a biological function.

Soil Acidity

The measure of hydrogen ion concentration in soil, affecting nutrient availability and plant growth.

Pine Needles

The slender, pointed leaves of pine trees, adapted to conserve water.

Secondary Succession

The process of ecological recovery and species replacement that occurs in an area where a biological community has been partially or entirely removed.