# Formative Assessment in Science Grade 7

## Quiz by CID Office SDO Balanga

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10 questions
• Q1
In a saturated solution, which of these acts will cause more solute to dissolve?
By cooling the solution
By decreasing the solute
By heating the solution
30s
• Q2
A solution can still dissolve more solute. What type of solution is it?
Saturated
Concentrated
Unsaturated
Supersaturated
30s
• Q3
Your sister prepared juice for your visitors. You noticed that some juice particles were not dissolved. How will you describe the juice prepared by your sister in terms of saturation?
Unsaturated
Supersaturated
Saturated
Concentrated
30s
• Q4
In which step is the solution described as saturated?
Step 2
Step 4
Step 1
Step 3
30s
• Q5
Which of the following is less concentrated?
20 grams sugar, 50 grams water
10 grams sugar, 50 grams water
25 grams sugar, 50 grams water
15 grams sugar, 50 grams water
30s
• Q6
In your Science 7 class, you prepared a solution by mixing 45 g of salt in 100 g of water. What are the concentrations of the solute and solvent in percent by mass?
Solute: 45% Solvent: 100%
Solute: 45% Solvent: 145%
Solute: 31% Solvent: 69%
Solute: 0.31% Solvent: 0.69%
30s
• Q7
You prepared a solution containing 9% of sodium chloride. How will you describe your solution?
The solution contains 0.9 grams of sodium chloride and 0.91 grams of water.
The solution contains 9% of sodium chloride and 91% of water.
The solution contains 90 grams of sodium chloride and 100 grams of water.
The solution contains 90 % of sodium chloride and 10 % of water.
30s
• Q8
What term is used to describe a solution if it contains as much dissolved solute as it can hold under a given set of conditions?
Concentrate
Saturated
Unsaturate
Supersaturated
30s
• Q9
How would you classify the solution if it contains less solute than the maximum it can dissolve?
Unsaturated
Saturated
Supersaturated
Solubility
30s
• Q10
What is the percentage of concentration in the following solution: 5grams sucrose in 80 grams of water?
9.5%
5.9%
16%
6.3%
30s

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