Suspensions

Today we learned abut one type of mixture - suspensions. We also looked at one way to separate suspensions: filtration.

For homework (due on Tuesday), we need to do some research about the THREE methods used to separate suspensions. We have to decide: Which separation method is THE BEST for separating suspensions?

Using a SOLO Compare/Contrast Map would be a good idea...

Mixtures

Matter can be classified as a Pure Substance or as a Mixture. How do we decide?

Our sciPad (p27) had some everyday substances we had to classify. How did we make our decisions?

The generalisation has to be completed for homework. We were give some hints, such as: salt being made of two substances, yet not being a mixture; there being different types of dirt...but they are still called dirt!

We also have to complete p28 in our sciPad for homework (by Friday).

Monday's Lesson

With Mr Nicoll away sick, here is what we had to do:

1. Access the Class Site in Moodle: http://classes.stac.school.nz/course/view.php?id=1343
2. Do the “Light Quiz”
3. Download one of the Word files
4.  Complete the SOLO HotMap
5. Write a 2-3 paragraph answer – finish for homework tonight

3-5 students will be randomly selected to read out their answers (or have them read out by Mr Nicoll) on Tuesday

Test (Light and Sight) on Friday!!!

Discussing Colour

This work was done by Megan, based on the brief given on Wednesday:

Websites

The class worked on some websites about how eyes help their favourite animals survive. Here are some of them:

• http://slothsgotsweg.weebly.com/
• http://giantsquideye.weebly.com/
• http://dogeye.weebly.com/
• http://horseeye.weebly.com/
• http://lookintotheeyeofawolf.weebly.com/
• http://eyeofthemonkey.weebly.com/
• http://eyeofchameleon.weebly.com/
• http://slothstilltheend.weebly.com/
• http://theturtleclan14.weebly.com/

Please do have a look.

Colours

We had a play with prisms today, showing that white light can be split up into the colours of the rainbow.

Eyes

Having learned about lenses, we are now studying something in nature which uses lenses - the eye!

Our sciPad books have some good resources for this:

Our next task is a tricky one; we have to make a website about the eyes of one of our favourite animal. I will post the links to these next week when they are complete.

1. Research the eye of the animal.
2. Find out why the animal's eye has the features it has, and how this helps the animal survive in the wild.
3. Compare this animal's eyes to human eyes.
4. Create a website about the animal and its eyes.