Unit 2 Review

Front

Cohesion

Back

Water molecules ability to stick to each other

Front

Adhesion

Back

Water molecules ability to stick to other surfaces

Front

What water phenomenon can be observed in this photo? Options: Water dissolving, Capillary Action, Chemical Reaction, Photosynthesis

Back

Capillary Action

Front

How is this lizard able to run across water? Options: Capillary Action, The lizard is really light, The water is a little frozen, Surface Tension

Back

Surface Tension

Front

Why does water ice have a lower density than liquid water?

Back

Because the molecules expand in volume as water freezes into a crystal

Front

The pH scale is a range from:

Back

0-14

Front

A(n) ______ is a substance with a pH less than 7

Back

Acid

Front

A(n) _______ is a substance with a pH greater than 7.

Back

Base

Front

What is the only substance with a neutral pH of 7? Options: Milk, Orange Juice, Water, Blood

Back

Water

Front

A substance that is more basic has a _____ pH than a substance that is acidic.

Back

higher