Acids and bases AS90944 revision part 2

by | Aug 30, 2012 | school posts, Year 11, K-12

We are working through a practise paper from the Ministry website

You should have completed question 1 last night. Do question 2 tonight. See last night’s post for instructions on how to hand this work in.

Also revise writing chemical formulae, word equations, fully balanced chemical equations and the reactions of acids and bases by watching the embeded videos below. They are based on lessons and lesson notes I did with you earlier in the year. There is video of practical work you carried out when you were making salts by neutralising acids with bases.

Ions, ionic compounds, word equations and fully balanced chemical equations.

Neutralisation reactions and practical work you carried out. Acids bases and salts.

Acids and bases AS90944 year 11 revision.

by | Aug 29, 2012 | school posts, Year 11, K-12

Homework

End of term exams are looming. We revised the atomic structure aspects of this topic in class today and you may choose how you do your exam revision homework.

1) Print the practise test paper out at home and answer the questions on the printout

2) Download the practise paper onto your computer and answer the questions separately on your own paper.

3) Flick through the practise paper questions on the blog and answer them on your own paper.

DO QUESTION 1 TONIGHT

Practise paper

Atoms and atomic structure

A look at the periodic table

 

The Periodic Table of all the elements in the universe left after recycling through supernova on Prezi

 

The reaction between sodium and chlorine to produce sodium ions and chloride ions. Atoms gain lose or share electrons to end up with a full outer shell. Compounds containing ions are called ionic compounds.

 

Year 11: AS 90954 Demonstrate understanding of the effects of astronomical cycles on planet Earth

by | Aug 23, 2012 | school posts, Year 11, K-12

Homework exercise in preparation for the internally assessed achievement standard AS 90954 Demonstrate understanding of the effects of astronomical cycles on planet Earth.

Produce a report in two parts.

Part 1

Describe in detail using information, visual representations, and data the astronomical cycles listed below.

  • Spin of the earth on its axis
  • Orbit of the earth around the sun.
  • Effect of the Earth’s tilt and the heating effect of the Sun.

Part 2

Describe in detail using information diagrams and dat the effect of these cycles on the earth with respect to:

  • Day and night
  • Seasons
  • Changes of temperature during the day and night

Seasonal changes at the North and South poles, latitude of New Zealand, Tropics of Cancer and Capricorn, and the Equator

To be handed in next Monday. The report is your first attempt at using this material. Create your own diagrams and tables. DO NOT cut and paste

Places you will find information include your text book (feel free to use it you have paid for it) wikipedia and youtube.

 

 

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