Sci club storm glass quiz

What is the purpose of a storm glass?

• To predict weather conditions

• To measure air quality changes

• To create crystals for decoration 

• To observe change in color

What is the purpose of heating the mixture in the storm glass experiment? 

• To create crystals at the bottom 

• To dissolve the solids completely 

• To change the color of the liquid 

• To make the solution cloudy 

How can a storm glass be interpreted to predict rainy or snowy weather? 

• Clear liquid 

• Cloudy liquid

• Large flakes scattered throughout the liquid

• Small dots in the liquid

What does the presence of crystals at the bottom of the storm glass indicate?

• Bright and clear weather 

• Cloudy weather

• Cold weather

• Windy weather 

Which of the following does not affect the solubility of solid solutes?

• Temperature 

• Quantity of solute 

• Stirring 

• Volume of solvent

The solubility of solids depends on temperature. As temperature increases, 

• The solubility of most solid solutes drops to zero 

• The solubility of most solid solutes increases

• The solubility of most solid solutes decreases

• The solubility of most solid solutes does not vary

Based on the diagram, indicate which of the following about calcium sulfate is true:

• When temperature increases, the solubility increases 

• When temperature increases, the solubility decreases 

• When temperature increases, the solubility remains unchanged  

• When temperature increases, the solubility fluctuates

Crystallization is the process of:

• Dissolving a solute in a solvent 

• Forming a solid crystal from saturated solutions 

• Breaking down a crystal into smaller particles

• Mixing two or more substances to form a solution

Which substance is typically used to make rock candy? 

• Sodium chloride

• Potassium nitrate

• Sodium tetraborate 

• Calcium carbonate 

Snowflakes are formed through crystallization in the atmosphere. The primary component of snowflakes is:

• Water vapor 

• Carbon dioxide 

• Oxygen

• Nitrogen