Archive for May, 2011

Exam review

Friday, May 20th, 2011

Check out this post by Mr Goodman for some good resources on reviewing the Waves topic.  And here is a list of interactive websites for review:-

Bonding

Ionic compounds

Naming compounds

Atomic structure, atomic number and mass number and isotopes

Periodic table Jeopardy

Atomic models quiz

Balancing equations battleships

Series of games on naming ionic and covalent molecules

Organelles and cell structures

 

 

Eye see!

Monday, May 16th, 2011

Cow eye dissection by Susan Tansil on flickr

We’ll take a look (ha ha) at the structure of the eye, and learn how it captures light waves so that wecan see.

Eye-diagram

We’ll be able to identify the parts by name and also explain their function.  We’ll understand how the eye is like a camera, and we’ll do an eye dissection.

Electricity in context

Friday, May 13th, 2011

plug by Samuel M. Livingston on flickr

For our last piece of the puzzle before we begin reviewing for exams, we are going to take a look at some of the applications of what we have been learning so far.  You can choose one of the questions from the list below (or come up with your own and clear it with Mrs D) then find out the answer, and share it with the group in a meaningful way.  This could be a poster, a video, a model, a powerpoint, a speech – whatever you feel is appropriate to convey the information.

  • How is electrical charge associated with nervous impulses (signals) passing along neurones?
  • What is the difference between AC  and DC?
  • A time traveler from 100 AD arrives at ISM.  Explain to this person the dangers of electricity.
  • How does an electric motor work?
  • What is a fuse and what does it do?  Why are there different kinds of fuses?

 

Lenses and ray diagrams

Thursday, May 12th, 2011

telescope by Waifer X on flickr

Here are links to a couple of sites on ray diagrams.  This first one is factual.  This one is interactive, and covers the different types of image obtained when you place your object various distances from the the lens.  And this site (Thanks for finding it Mr Goodman) is really useful.

Make sure you know the difference between a real and virtual image, an inverted and an upright image, and a magnified and diminished image.

Now that you know all about refraction, and how light bends as it passes through lenses, it’s time to take a look at where we use lenses in our daily (or not so daily) lives.  Microscopes, telescopes, cameras, binoculars, all contain at least one lens.  Your task is to select one application of lenses and do some research on it.  Prepare a glogster poster of your findings.  You must explain what type or types of lenses are present, what refraction has to do with your chosen application, and how it works.  Follow the links here to help get you started.

Total internal reflection

Tuesday, May 10th, 2011

Total internal reflection (TIR) – find out what it is and why it is useful.  Watch this demo:  YouTube Preview Image

Electromagnets

Friday, May 6th, 2011

electromagnet by cobalt_grrl on flickr

This week you will find out what an electromagnet is and how it works.  You will make a simple electromagnet like the one described on this site.  You will then design an experiment to investigate some factor affecting the strength of an electromagnet.  Carry out your experiment, record data, process and present the data, write a conclusion and evaluate. You need to read the rubrics carefully and make sure you are aiming for the “exemplary” column in all cases.  Good luck and enjoy!

FINAL Rubric design FINALRubric DCP FINAL Rubric CE

Resistance in series and parallel

Friday, May 6th, 2011

Useful resources for reviewing resistance:

Resistance and Ohm’s Law

Resistance

Calculating resistance in series and parallel

Useful site showing calculations for resistors in series and parallel.  And another one.

Exam review

Thursday, May 5th, 2011

final exam by dcJohn on flickr

3 weeks and counting ….. your semester 2 Integrated Science exam is on Thursday 26th May.  Make sure you check the exam schedule CAREFULLY so that you report in the right place at the right time.

You will need to bring pens, pencils, ruler, eraser and calculator to the exam.  YOU ARE NOT ALLOWED TO BORROW.

Here is the “traffic light” review sheet for semester 2.  USE IT!  Come to tutorials to ask me about anything you don’t understand.  Happy studying 🙂

Grade 9 Integrated Science Learning Outcomes revision sheet May 2011

Grade 10 Integrated Science Learning Outcomes revision sheet – May 2011

 

Genetic engineering and biotechnology

Thursday, May 5th, 2011

Gel electrophoresis method used to separate the coloured dyes in food colouring by Shandchem on flickr

The last section of work before IB1 exams!  This is cool stuff.  It is the “newest” part of the course as it involves science that is very current.  Here are some of the questions we’ll attempt to answer:-

  • What are the techniques of PCR and gel electrophoresis and how do they work?
  • What is DNA profiling and how can it be used to determine paternity or in forensic investigations?
  • What is meant by “gene transfer” and how can it be performed?
  • What are some examples of genetically modified crops or animals?
  • What are the potential benefits and harmful effects of genetic modification?
  • What is a clone? How can we clone using differentiated animal cells?
  • What are the ethical considerations of therapeutic cloning in humans?

Take a look at these notes: Genetic Engineering And here is a FABULOUS blog post from Mr Taylor with TONS of resources – videos, slideshows, interactive links – you name it, it’s here.  USE THEM!