Science Grade 4: Laboratory Rules

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Questions and Answers

What is the purpose of a science laboratory?

To perform experiments to explore and understand scientific concepts firsthand.

Which of the following is NOT a guideline to follow in the laboratory?

  • Consume food and drinks (correct)
  • Wear safety goggles
  • Keep work areas clean
  • Follow instructions carefully

You should not follow the instructions provided by your teacher.

False (B)

Before entering the laboratory, you must be ______.

<p>prepared</p> Signup and view all the answers

What should you wear to protect yourself in the laboratory?

<p>A lab coat, safety goggles, and closed-toe shoes.</p> Signup and view all the answers

What should you familiarize yourself with in case of an emergency?

<p>Location of emergency exits (C)</p> Signup and view all the answers

Match the following lab attire with their purpose:

<p>Lab coat = Protection from spills Safety goggles = Eye protection Closed-toe shoes = Foot protection Gloves = Hand protection</p> Signup and view all the answers

It is okay to leave your workspace messy in the laboratory.

<p>False (B)</p> Signup and view all the answers

What is a science laboratory?

<p>A special room equipped with tools and materials for performing experiments.</p> Signup and view all the answers

Which of the following is NOT a safety rule in the laboratory?

<p>Eat or drink in the lab (C)</p> Signup and view all the answers

You should familiarize yourself with the location of emergency exits and safety equipment in the lab.

<p>True (A)</p> Signup and view all the answers

Before you enter the laboratory, you must be _____

<p>prepared</p> Signup and view all the answers

What should you wear for safety in the laboratory?

<p>Lab coat, safety goggles, and closed-toe shoes</p> Signup and view all the answers

What is the main purpose of maintaining a clean workspace in the lab?

<p>To reduce the risk of accidents (C)</p> Signup and view all the answers

What should you do if electric cords are present in the lab?

<p>Ensure that electric cords are in a safe place to avoid tripping.</p> Signup and view all the answers

Match the following laboratory safety symbols with their meanings:

<p>Toxins = Harmful substance to the environment Flammable Substance = Can ignite easily Explosive = Material that can explode Radioactive = Emits radiation that can be harmful</p> Signup and view all the answers

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Study Notes

Learning Objectives

  • Understand basic laboratory safety rules.
  • Work safely in a science laboratory setting.
  • Know the appropriate procedures in case of an accident.
  • Recognize the meaning of awareness symbols related to laboratory safety.

Science Laboratory Overview

  • A science laboratory is a designated space equipped with tools and materials for conducting experiments.
  • Students can explore and understand scientific concepts through hands-on activities.

Laboratory Safety Rules

  • Guidelines are established to ensure safety during experiments due to potential hazards from equipment and chemicals.
  • Adhering to safety rules is crucial to avoid injury.

Preparation for Laboratory Work

  • Review notes and laboratory materials before starting experiments.
  • Understanding procedures enhances comprehension and organization for writing lab reports.

Following Instructions

  • Instructions from teachers or supervisors must be followed exactly for safety and accurate experimental outcomes.

Proper Attire

  • Essential safety gear includes:
    • Lab coat
    • Safety goggles
    • Closed-toe shoes
  • Gloves are also recommended to protect against chemical exposure.

Keeping Work Areas Clean

  • A tidy workspace minimizes accident risks and ensures precise measurements.
  • Promotes organization and efficiency during experiments.

Prohibitions on Eating and Drinking

  • Eating or drinking in the lab can lead to contamination.
  • Consuming food or beverages increases the risk of exposure to chemicals.

Electrical Safety

  • Exercise caution around electrical appliances.
  • Ensure that cords are safely positioned to prevent tripping.
  • Do not tug on cords to unplug appliances from outlets.

Emergency Procedures

  • Familiarize with emergency exits, fire extinguishers, safety showers, and eyewash stations for effective responses in emergencies.

Laboratory Symbols and Their Meanings

  • Warning Instructions: Indicators of hazards including toxins, flammable substances, irritants, caustic materials, radioactive materials, and explosives.

Mandatory Safety Instructions

  • Safety protocols may include:
    • Wearing gloves
    • Using masks
    • Wearing protective shoes and glasses
    • Using respirators if required.

Learning Objectives

  • Understand basic laboratory safety rules.
  • Work safely in a science laboratory setting.
  • Know the appropriate procedures in case of an accident.
  • Recognize the meaning of awareness symbols related to laboratory safety.

Science Laboratory Overview

  • A science laboratory is a designated space equipped with tools and materials for conducting experiments.
  • Students can explore and understand scientific concepts through hands-on activities.

Laboratory Safety Rules

  • Guidelines are established to ensure safety during experiments due to potential hazards from equipment and chemicals.
  • Adhering to safety rules is crucial to avoid injury.

Preparation for Laboratory Work

  • Review notes and laboratory materials before starting experiments.
  • Understanding procedures enhances comprehension and organization for writing lab reports.

Following Instructions

  • Instructions from teachers or supervisors must be followed exactly for safety and accurate experimental outcomes.

Proper Attire

  • Essential safety gear includes:
    • Lab coat
    • Safety goggles
    • Closed-toe shoes
  • Gloves are also recommended to protect against chemical exposure.

Keeping Work Areas Clean

  • A tidy workspace minimizes accident risks and ensures precise measurements.
  • Promotes organization and efficiency during experiments.

Prohibitions on Eating and Drinking

  • Eating or drinking in the lab can lead to contamination.
  • Consuming food or beverages increases the risk of exposure to chemicals.

Electrical Safety

  • Exercise caution around electrical appliances.
  • Ensure that cords are safely positioned to prevent tripping.
  • Do not tug on cords to unplug appliances from outlets.

Emergency Procedures

  • Familiarize with emergency exits, fire extinguishers, safety showers, and eyewash stations for effective responses in emergencies.

Laboratory Symbols and Their Meanings

  • Warning Instructions: Indicators of hazards including toxins, flammable substances, irritants, caustic materials, radioactive materials, and explosives.

Mandatory Safety Instructions

  • Safety protocols may include:
    • Wearing gloves
    • Using masks
    • Wearing protective shoes and glasses
    • Using respirators if required.

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