WorksheetsY8 extracting salt
Total questions: 13
Worksheet time: 7mins
Which of the following are the physical characteristics of salt crystal?
I They have similar size.
II They have fixed angle.
III They have fixed geometrical shapes.
IV They have flat surface, straight edges and sharp angles.
I, II and III
I, II and IV
I, III and IV
II, III and IV
Salt breaks down ice by lowering the ...
boiling point
melting/freezing point
elasticity point
fire point
What is the scientific name for salt?
Sodium chloride
Hydrochloric acid
Acetic acid
Potassium chloride
What are the sources of salt on Earth?
Pure water
several plants
Mines
Sea water
What physical phenomenon is used in salt marshes?
Melting
Evaporation
Freezing
Condensation
Is consuming salt essential for our health?
YES
NON
What is the maximum daily dose of salt recommended by WHO?
5 g
12 g
5000 mg
1 kg
What are the risks if you eat too much salt?
Hypertension
Stomach cancer
Obesity
All of the above
In one gram of salt, there is 400 mg of Sodium. If I consume 5 g of salt, how many milligrams of Sodium have I consumed?
4 g
2 g
200 mg
Which of the following foods contains the least salt?
Pizza
Potato crisps
Bread
Banana
Salt breaks down ice by lowering the ...
boiling point
melting/freezing point
elasticity point
fire point
The saltiness of the ocean is going up
True
False
Where does most of the salt in the oceans come from?
the sky
the ground
scientists experiments
fish
