Wk1 Tools of a Scientist Lesson 2

Integrated Science: Tools of a Scientist

Overview

  • Grade Level: 7

  • Week: 1

Objective

  • Identify, draw, and state the functions of the following 15 scientific apparatus used in laboratories:

    • Measuring cylinder

    • Test tube

    • Bunsen burner

    • Tripod stand

    • Beaker

    • Conical flask

    • Round bottom flask

    • Flat bottom flask

    • Burette

    • Pipette

    • Evaporating dish

    • Wire gauze

    • Retort stand

    • Filter funnel

    • Meter rule

    • Thermometer

Key Words

  • Tools

  • Apparatus

  • Measuring cylinder

  • Test tube

  • Bunsen burner

  • Tripod stand

  • Beaker

  • Conical flask

  • Round bottom flask

  • Flat bottom flask

  • Burette

  • Pipette

  • Evaporating dish

  • Wire gauze

  • Retort stand

  • Meter rule

  • Thermometer

Review: Graphs, Tables, and Drawings

  • Guidelines for Graphs:

    • List three key rules for constructing graphs.

  • Guidelines for Tables:

    • List three key rules for constructing tables.

  • Guidelines for Drawings:

    • List three key rules for drawings.

Importance of Tools/Apparatus

  • Tools or apparatus are essential instruments used by scientists in the laboratory to aid in experiments and research.

  • Some apparatus have similar names but serve different functions, requiring careful identification and understanding of their use.

Drawing Guidelines

  • Drawings must be done in pencil.

  • No shading is allowed; drawings should be in 2D only.

  • Lines should be smooth and continuous.

  • Labels must be on one side with horizontal lines; no arrows should be used.

  • Titles should be in all caps and underlined.

  • Drawings should occupy at least 50% of the page.

Apparatus Definitions and Functions

Wire Gauze

  • Used with the tripod stand to support glassware (e.g., beakers, conical and flat bottom flasks) during heating.

Tripod Stand

  • Provides stable support for various apparatus during experiments.

Measuring Cylinder

  • A tool for accurately measuring the volume of liquids.

Bunsen Burner

  • A flame-producing device used for heating substances in the lab.

Filter Funnel

  • Used to separate solids from liquids or for pouring liquids without spilling.

Pipette

  • A laboratory tool used to measure and transfer precise volumes of liquids.

Burette

  • Instrument used for dispensing accurate volumes of liquid, particularly in titrations.

Evaporating Dish

  • Used to evaporate excess solvents to obtain a concentrated solution.

Review Questions

  1. Identify three apparatus used to accurately measure liquid volumes:

    • Measuring Cylinder

    • Burette

    • Pipette

  2. Which apparatus is the most accurate for measuring liquid volumes?

    • Burette

  3. Identify the following apparatus:

    • Bunsen Burner

    • Pipette

    • Tripod Stand

    • Measuring Cylinder

Conclusion

  • Ensure familiarity with the various tools and their functions, along with guidelines for proper drawings and representations in the lab.

  • This understanding is crucial for successful scientific experiments and data gathering.