Week 1 Chemistry Review
Task 1 - Introduction to atoms, molecules, chemical reactions
This is a directed lesson using the molecular model kits, demonstrations of combustion of alcohols and writing chemical equations for reactions.
If you would like a copy of the Powerpoint presentation you may download it from the College Intranet.
If you would like a copy of the Powerpoint presentation you may download it from the College Intranet.
Task 2
1. Have a look at the following for interest and to broaden your knowledge;
- A flash animation comparing the Periodic Tables of Newman, Meneleev and the modern table http://freezeray.com/flashFiles/periodicHistory.htm
- An interactive site to explore the discovery of elements on the periodic table http://freezeray.com/flashFiles/discoveryDates.htm
2. Complete the instructions from the slides below.
Periodic Tables and information about elements: http://www.webelements.com/
Task 3 Periodicity of the elements - complete data gathering by Monday 11 February
- Make a table with the column headings Atomic Number, Element, Boiling point (oC).
- Visit this site and record data for the boiling points of the first twenty elements of the periodic table. http://www.chemicalelements.com/show/boilingpoint.html
- On graph paper plot the boiling point data against atomic number of the elements. Choose a suitable scale as some of the temperatures are below zero. Remember to include a title, and labels on the axes.
Questions
- On your graph, show in another colour where Periodic Table Periods 1, 2 and 3 begin.
- On each point on your graph write the symbol of the element.
- Describe the shape of your graph.
- Explain what happens to the trend of boiling points across a period of the Periodic Table.
- Explain why the Periodic Table of Elements is so called.
Task 4 Laboratory Session; Rusting - Write this up by Wednesday 6 February
Preparation
Science Aspects 2 page 210
Prepare for this laboratory session;
Conducting - in the laboratory
Analysing
Science Aspects 2 page 210
Prepare for this laboratory session;
- Write the Purpose
- Read through the Safety, Requirements and Procedure
- Write the heading Procedure
- Draw, using a ruler and a pencil, Figure 5.1.6 as a 2D scientific drawing
- Write the heading Results
- Draw up a table to receive the results of your observations.
Conducting - in the laboratory
- During class set up the experiment, label all test tubes with names of contents and label with the names of your group.
- Leave the test tube rack on the back shelf.
Analysing
- Complete the Questions from Science Aspects 2 page 210
Comparison of reaction of sodium with oxygen and water, and the reaction of iron with oxygen and water
Compare and contrast these two reactions in terms of the initial reactants, the final products, and the rate of the reactions.
Compare and contrast these two reactions in terms of the initial reactants, the final products, and the rate of the reactions.
Task 5 - Process and Skills Test Week 1 Thursday 7 February or Friday 8 February
This lesson is conducted in SILENCE. This week’s test is a Process/Pre-Test. It is similar to the NAPLAN test in that it tests your science processing skills. We will mark the test after 45 minutes and you can research to correct your answers.
This week’s test is on Chemicals and Mixtures.
This week’s test is on Chemicals and Mixtures.