WorksheetsScience 8 (Properties of water, acids and bases)
Total questions: 20
Worksheet time: 15mins
Give a example of Acids
Rain
Distilled Water
Soap
Ammonia
Give a example of base
Lemon Juice
Tomato
Soda
Bleach
Base turns litmus paper …..
(a)
What is the pH of Distilled Water?
(a)
Which of the followings is properties of water?
Cohesion, Adhesion, Surface tension
Neutralization, Titration
Universal solvent, High specific heat, Capillary action
Being polar, turn litmus paper green
Tendency to stick to other substances. Which properties of water is this showing?
(a)
From pH 6 to 5 how many time is it more acider
10 times
5 times
3 times
15 times
Acids and bases are both good conductors of …….
Electricity
Water molecules
Charges
Polarity
The pH scale runs from (a)
When acid and base react is will form ___ and ___
Salt and Water
Soap and Lemon Juice
Oxygen and Hydrogen
Hydrogen and Hydroxide
Which two things reacts together and neutralize will happens?
When an acid and a acid reacts together
When an acid and a base reacts together
When an base and a base reacts together
When salt and water reacts together
A basic solution has a high concentration of ___ ions.
Hydroxide
(OH-)
(H+)
Hydrogen
An acidic solution has a high concentration of ___ ions.
(OH-)
(H+)
Hydrogen
Hydroxide
What does Acid tastes like?
(a)
What does Base tastes like?
(a)
Bonds that form between water molecules are called ________ bonds.
Hydrogen
Hydroxide
Ionic
Covalent
When water molecules stick to other water molecules. What property of water is it showing?
Cohesion
Adhesion
Surface Tension
Capillary Action
True or False? Compared with other substances, water requires a lot of heat to increase its temperature.
True
False
Choose all the options that is true about water’s surface tension
It helps some insects to stand on the surface of the water
It refers to the tightness across the surface of the water
It is causes raindrops to form round beads
None above
Uneven distribution of charges in a molecule. Is what property of water?
(a)
