1.4.1. Laboratory tools of biologist

Key Concept:

Biologists use laboratory tools to observe, measure, and analyze biological specimens and processes with precision and safety.

Short Notes:

Biology is an experimental science that relies on various laboratory tools to investigate the structure and function of living things. These tools help biologists perform tasks such as measuring liquids, observing microorganisms, heating substances, and handling specimens under safe and controlled conditions.

Common laboratory tools include the microscope for magnifying tiny structures, the test tube for holding and mixing chemicals, the beaker and graduated cylinder for measuring liquids, the Bunsen burner for heating, the Petri dish for growing microorganisms, and the thermometer for checking temperature. Each tool has a specific function and must be handled properly to ensure accurate results and prevent accidents. Mastering these tools is essential for effective scientific investigation and learning.

Key Terms:

• Microscope – Instrument that magnifies tiny objects,
• Beaker – Wide container used to hold liquids,
• Bunsen burner – Tool for heating substances in a lab,
• Petri dish – Shallow dish for culturing microorganisms,
• Graduated cylinder – Tube used to measure liquid volumes.

Example:

In many Ethiopian schools, students use microscopes to view onion cells and Petri dishes to grow bacteria collected from their hands or classroom surfaces.

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Next Topic Preview:

Next, you’ll step outside the lab and explore the field tools of a biologist — instruments used to study nature directly in forests, farms, and rivers.