WorksheetsWater & pH Final Review
Total questions: 50
Worksheet time: 50mins
Capillary Action is key for
Water moving from roots to leaves in plants
Air moving from mouth to lungs
Ice floating on water
Water moving to lower areas
Capillary Action is key for
Water moving from roots to leaves in plants
Air moving from mouth to lungs
Ice floating on water
Water moving to lower areas
Cohesive means ........
the water molecules stick to each other
the water molecules stick to other surfaces
the water molecules are less dense
the water molecules are far apart
Adhesive means ........
the water molecules stick to each other
the water molecules stick to other surfaces
the water molecules are less dense
the water molecules are far apart
Water striders can walk on water because of ____________.
capillary action
adhesion
surface tension
universal solvent
Water can bounce on water because of surface tension.
True
False
An attraction between molecules of different substances is called...
adhesion
cohesion
An attraction between molecules of the same substance is called...
adhesion
cohesion
Which of these samples shown best represents an mixture?
A
B
C
D
Which of these samples shown best represents an element?
A
B
C
D
What type of mixture does this diagram represent?
Homogeneous
Heterogeneous
What is cohesion?
Attraction between different substances
Attraction between similar molecules
The ability of a liquid to flow
What is adhesion?
Attraction between different substances
Attraction between similar molecules
The ability of a liquid to evaporate
Which of the following demonstrates adhesion?
Water forming a droplet
Water climbing up a paper towel
Water freezing into ice
Why do some insects, like water striders, walk on water?
They push the water down
They are very light
Cohesion and surface tension create a supportive layer
Water drops on the surface of a penny demonstrate which phenomenon?
Cohesion
Adhesion
Surface Tension
Condensation
Capillary Action can pull the water _____
Upwards
Downwards
Refer to the picture; this is occurring because of:
Cohesion
Adhesion
Capillary action
Surface tension
William was conducting a science experiment and found that a certain substance had a pH less than 7. This substance is likely a(n) ______.
Acid
Alkaline
Base
Buffer
David was conducting a science experiment and found a substance with a pH greater than 7. This substance is a(n) _______.
Base
Acid
Buffer
Water
Mason and Abigail were conducting a science experiment. They were testing different solutions to see which one releases H+ in solution. Daniel suggested they test the following options. Which one should they choose?
Base
Acid
Buffer
Water
Anika, Samuel, and Grace were conducting a science experiment. They had lemon juice, hydrochloric acid, cabbage, and milk. According to the pH range, which substance did they find to be more acidic than lemon juice?
Hydrochloric acid
cabbage
milk
phosphoric acid
Kai found a substance in the chemistry lab and observed the following characteristics:
It had a very bitter taste when he put a small amount on his tongue
It felt slippery when Harper touched it
When Priya dissolved it in water, it produced OH- ions
How should they classify this substance?
acid
base
enzyme
fatty acid
Arjun, Avery, and Aria were conducting a science experiment. They found a substance with the following characteristics:
Very sour taste
Feels soft to the touch
Produces H+ ions when dissolved in water
How should they classify this substance?
acids
bases
enzyme
fatty acid
Which substance is the most basic?
hydrochloric acid
blood
drain cleaner
water
We should use eco-friendly drain cleaner, because many commonly used drain cleaners are __.
strong acids
weak acids
weak bases
strong bases
