Lab Skills

Laboratory Tools and Process Skills

A Review

Laboratory Tools and Apparatuses

- are considered important in performing experiments.

-It is best to know what isntruments to use before conducting an experiment.

Types of Laboratory Tools

• Container for Liquids

Types of Laboratory Tools

• Heating

Types of Laboratory Tools

• Support for Set-ups

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Types of Laboratory Tools

• Filtration and Transfer of Liquids

Types of Laboratory Tools

• Measurement

Types of Laboratory Tools

• Others

CAN YOU IDENTIFY THESE TOOLS?

Multiple Choice

• Graduated Cylinder

• Test Tube

• Glass Rod

• Thermometer

Fill in the Blanks

Multiple Choice

• Erlenmeyer Flask

• Florence Flask

• Reagent Bottle

• Watch Glass

Multiple Choice

• Evaporating Dish

• Watch Glass

• Petri Dish

• Glass Plate

Fill in the Blanks

Multiple Choice

• Platform Balance

• Spring Balance

• Triple Beam Balance

• Table Balance

Fill in the Blanks

Multiple Choice

What is a mortar and pestle used for?

• Crushing and grinding solids into a powder

• Heating substances

• Scooping up solids such as powder

Multiple Select

What are the tools that can be used for measuring and holding liquids?

Multiple Choice

Which laboratory tool is used in measuring solids.

Science Process Skills

• Observing

• Inferring

• Formulating Hypothesis

• Identifying and Controlling Variables

• Experimenting

• Communicating

• Predicting

Multiple Select

Choose TWO (2) correct observations based on the given picture.

• The color of the liquid inside the graduated cylinder is light blue.

• The liquid inside the graduated cylinder turned blue because of the bacteria.

• The amount of liquid inside the graduated cylinder is 67 mL.

• The liquid turned solid.

Notice...

• The color of the liquid inside the graduated cylinder is light blue.

• The amount of liquid inside the graduated cylinder is 67 mL.

Multiple Choice

Identify the type of observation:

The room smells like popcorn.

• Qualitative

• Quantitative

Multiple Choice

Identify the type of observation:

The length of the regular pencil is 19.5 cm.

• Qualitative

• Quantitative

Notice:

• The liquid inside the graduated cylinder turned blue because of the bacteria.

• The streets are flooded because of the heavy rain.

Multiple Select

Choose TWO (2) statements that are inferences.

• There are 20 students in the online class.

• The fire produced black smoke.

• The water level reached 50 meters due to heavy rain.

• The high temperature caused the water to evaporate faster.

• The temperature in Cebu is three times higher than in Cagayan de Oro.

In Summary...

• Qualitative Observation - describing the characteristics or properties of an object or organism.

• Quantitative Observation - an observation which include a reference to some standard unit of size, weight, temperature, etc.

• Inference - interpreting or explaining observations.