Modelling particles and their processes 21/5/12

Hi Class we will continue our modelling activity today, the work you submit will be marked and you will be given a level based on it, so better put on the thinking caps and work quickly.

You will be judged on your scientific knowledge but also ability to follow the instructions and present work.

Have fun, remember rules about uniform, phones and misuse of computers-so don’t even think about misusing the internet for non work related purposes.

Good Luck!

TASK 1

i) Open PowerPoint and draw a particle using the circle tool, fill the particle in so it has a colour.

 ii)Copy and paste the particle so you can form the structure of what a solid should look like, write the title: This is a solid.

iii)Do the same for liquids and gases.

ACHIEVING THIS WILL GET YOU LEVEL 2

TASK 2

i) On a new slide make a title: Particles vibrating in a solid.

ii) copy your solid from the other slide,

iii) now copy the whole slide, and change the position of the particles so they look like they are vibrating when you go through the slides

iv) copy the slide again and move to solid molecules back to the original position, use a total of 5 slides to complete the animation

ACHIEVING THIS WILL GET YOU LEVEL 3

TASK 3

 Now continue using pictures and words to make a diagram or animation that shows,

·          A  solid melting into a liquid

·         A liquid boiling.  The particles escape into the air, and no longer touch each other.

·         A solid dissolving in water ( use two colours of particles)

ACHIEVING THIS WILL GET YOU LEVEL 4

TASK 4 Read the following:

·         Conduction is the transfer of heat through solids

·         Convection is the transfer of heat by particles moving upward in a liquid or gas

·         Radiation is the transfer of heat from a source in every direction through 

Can you write how the process of conduction, convection and radiation are all happening in a beaker full of water being heated on a Bunsen burner?

Write you answer on a slide

ACHIEVING THIS WILL GET YOU LEVEL 5

TASK 5 – Extension

·         See if you can find out what an egg is made of, and why it changes colour from transparent to white as it cooks.  Write an explanation on a slide, and include an animation or picture if you like.

ACHIEVING THIS WILL GET YOU LEVEL 6

Modelling particles and their processes 15/5/12

Hi Class!

We are doing animations today, so have fun, remember rules about uniform, phones and misuse of computers-so don’t even think about playing games..

1) 4 min Go to

http://www.bbc.co.uk/schools/ks3bitesize/science/chemical_material_behaviour/particle_model/activity.shtml

and do the activity

2i)) 15 min Open PowerPoint and draw a particle using the circle tool, fill the particle in so it has a colour

 ii)Copy and paste the particle so you can form the structure of what a solid should look like, write the title: This is a solid

iii) Do the same for liquids and gases

3)i) 5min, On a new slide make a title: Particles vibrating in a solid

ii) copy your solid from the other slide,

iii) now copy the whole slide, and change the position of the particles so they look like they are vibrating when you go through the slides

iv) copy the slide again and move to solid molecules back to the original position, use a total of 5 slides to complete the animation

4) 30 min Now repeat 3 with some of the following

·          Model a solid melting into a liquid

·         Model particles moving past each other in a liquid

·         Model a liquid boiling.  The particles escape into the air, and no longer touch each other.

·         Model a gas subliming into a solid (Hard)

·         Model a solid dissolving in water (Hard: use two colours of particles)

Today we will be seeing the thermite demonstration in period 3.  Before this, make sure you have printed off your notes on thermite from last week, and included the chemical reaction that occurs.
Once you've done that, answer these questions -

1. How can you tell a chemical change has occurred? - http://www.ric.edu/faculty/ptiskus/chemical/
2. Explain what kind of change happened to cook this egg, and how you would know if you'd been there when it happened -                                         
3. What is the term for when something goes from a solid straight to a gas? How about in reverse? - http://employees.csbsju.edu/hjakubowski/classes/chem%20and%20society/elementsatomsmol/olatommolstruct.htm
4. Watch this video.  What is the word for how thick a liquid is? - http://videosift.com/video/Non-Newtonian-Fluids-Explained-Lbs-of-Corn-Starch-Used
5. What is the name of the new teacher who will be helping us for the next few weeks?
6. Give one example of a physical change from this website, and one you think of yourself - http://www.edinformatics.com/math_science/p_change.htm
7. Try this activity, what methods of heat transfer do you use to make the biscuits? - http://www.mochigames.com/game/making-anzac-biscuits/
8. Watch this video in class if you can, otherwise do it for homework. Make sure you can explain to someone ALL the ways that you know this is a chemical change not a physical one.