L6 - Experimental methods

• Chemistry
• Secondary Education

Lesson 1 - What is IGCSE Chemistry?

4

10

Lesson 6 - Experimental Method

Today, I'm going to...

• know about the steps in planning a scientific experiment,
• be able to provide feedback about the sample investigation and
• understand why following the steps in planning any investigation helps me make a reasonable conclusion.

Lesson 6 - Experimental Method

• I can present our team responses analytically and collaboratively.
• I can give feedback on other teams' responses to the given questions.
• I can use several strategies to accomplish the task with my teammates.

I am successful if...

Experimental Design

Write a hypothesis.

Observe and ask a question.

Carry out the experimental plan. 

Plan an experiment to test your hypothesis.

 Evaluate and interpret experimental methods.

Interpret and evaluate experimental data.

• Completed analysis worksheet
• Slide presentations (focus: explanation of each answer)
• Peer Review form

Criteria for grading: 

• Organisation (25%)
• Content (30%)
• Delivery (30%)
• Response to Questions (15%)

PRESENTATION EXPECTATIONS

• Completed Peer Review form
• Use the rubric to provide feedback on others' work.

Team Twins!

• Team 1 to 3
• Team 2 to 4
• Team 3 to 2
• Team 4 to 1

Peer Review Expectations

Choose the odd-one-out:

SET 1 - sodium, magnesium, aluminium, silicon, phosphorus

SET 2 - potassium, chromium, cobalt, germanium, bromine

3Os: Odd-One-Out

Lesson 7 - The Periodic Table

Arrange the given elements according to their metallic property. 

(a) more metallic to less metallic character

• Zirconium, Tin, Rubidium, Silver, Rhodium

(b) non-metallic to metallic character

• Magnesium, Silicon, Sulfur, Sodium, Chlorine, Phosphorus

Metal or non-metal?

Experimental plan

sequence of steps

detailed diagrams

precise vocabulary

impersonal language

"what and how"

Experimental plan

Observations

results of the experiment 

qualitative (descriptive)

quantitative (counted or measured)

Observations

results of the experiment 

Measurements

qualitative (descriptive)

quantitative (counted or measured)

approximation

Observations

results of the experiment 

Measurements

Estimate

qualitative (descriptive)

quantitative (counted or measured)

used when a scientist is unable to gain reliable data

Interpretation

making sense of the data obtained by an experiment

describe results

explain the results using scientific knowledge

drawing graphs to represent data

calculations or manipulating data to make it easier to understand

www.bookwidgets.com

• I can name the three states of matter.
• I can give examples of the three states of matter that are important to me.
• I can describe the three states of matter and their differences in physical properties.

I am successful if...

Self-check

• Open your notebook.
• Look for this.
• Read.
• Reflect.
• Complete.

If you could change anything in the Periodic Table, what would you change? Explain why.