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Questions and Answers
Which of these items holds water? (Select all that apply)
What kind of container is used to hold liquids in a laboratory?
Beaker
A refrigerator can hold a closed water bottle.
True
A ______ is used to measure the temperature of human body.
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Which of the following is used to cook food quickly using steam?
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Study Notes
Properties of Water and Its Containers
- Closed water bottle: Maintains temperature due to reduced evaporation; ideal for transporting liquids while minimizing contamination.
- Open water bottle: Facilitates easy access to water but allows for evaporation and potential contamination.
- Thermos flask: Designed to insulate and maintain the temperature of liquids; utilizes vacuum insulation to minimize heat transfer.
Temperature Measurement
- Medical thermometer: Used to measure body temperature; essential for diagnosing fever or hypothermia. Often calibrated in Celsius or Fahrenheit.
Cooling and Refrigeration
- Refrigerator: Essential for preserving food and beverages by slowing bacterial growth; operates using a refrigeration cycle involving refrigerants.
Cooking and Pressure Management
- Pressure cooker: Cooks food faster by increasing pressure and raising boiling point of water; can achieve cooking temperatures above normal boiling point of 100°C.
Water Bodies and Storage
- Pool filled with water: Offers recreational opportunities; often treated with chemicals to maintain water quality and prevent algae growth.
- Beaker filled with water: Common laboratory equipment for measuring and mixing liquids; its wide mouth allows for easy pouring and stirring.
Chemical Storage
- Benzene tank: Used for storing benzene, an organic chemical; must be managed carefully due to its toxic and flammable properties.
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Description
This quiz explores the properties of water and its containers, including closed and open bottles, thermos flasks, and more. It also covers temperature measurement methods and cooling systems like refrigerators and pressure cookers. Test your knowledge on these essential concepts related to water and temperature management.
