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.

Today we will be doing some research into something called thermite to get ready for next week. Try and find information on the following that you can print out at the end:

What is thermite?
What is used to make it?
What can it be used for?
What elements are involved?
Why is it dangerous?
Is the reaction a chemical or physical change?

Include any diagrams that you find, and save and print your work at the end of the lesson.

Introduction

Today we will be looking at the start of the 'Cook' unit.  Answer the following questions in your books to help get ready for the practical in period three:

1. How mayn ways of heating something are there? - http://www.wisc-online.com/Objects/ViewObject.aspx?ID=sce304 
2. Explain what types of things conduction, convection and radiation occur in - http://www.bbc.co.uk/scotland/learning/bitesize/standard/physics/energy_matters/heat_in_the_home_rev1.shtml#top
3. Imagine you are at a bbq cooking some food on the grill.  What types of heat transfer are warming up the food?

                  
4. Use the table on this page to give two examples of conduction during cooking - http://www.cookingforengineers.com/article/209/Heat-Transfer-and-Browning-Foods
5. List one thing you SHOULD do and one thing you SHOULD NEVER do when using Bunsen burners - http://www.wpi.edu/offices/safety/bunsen.html
6. How many people in the U.S. have burns injuries each year? - http://www.burnsurvivor.com/burn_statistics.html
7. What methods of heat transfer are used here? - http://www.ecookinggames.com/game/pumpkin-pancakes/  , http://www.cookinggames.com/ ,
8. Imagine someone was cooking your favourite meal for dinner. What is the recipe and what types of heat transfer are involved?


HOMEWORK - Watch this short video, and write down how Heston uses each method of heat transfer to make the meal.  Bring your answers in for an achievement point next week!

Cook

Today we will having a look at some things we will be doing next term in the 'Cook' unit. Answer the following questions in your book:

1. How many different ways can things be heated up? - http://www.wisc-online.com/Objects/ViewObject.aspx?ID=sce304 
2. Give three examples of radiation heating things - http://www.wisc-online.com/Objects/ViewObject.aspx?ID=sce304
3. What do you think is in this soup? Click on the link below to find out:

4. http://www.thatsweird.net/picture40.shtml
5. What are the three states that matter can exist in? - http://www.sciencekids.co.nz/gamesactivities/gases.html
6. What dangers are involved with using liquid nitrogen? How cold is it? - http://www.telegraph.co.uk/news/worldnews/europe/germany/5821433/German-Heston-Blumenthal-blows-off-both-hands-in-liquid-nitrogen-kitchen-accident.html
7. What are scientists doing to help make ice cream taste better? - http://www.geekosystem.com/avalanche-research-ice-cream/
8. What are century eggs? Are they cooked or made another way? - http://www.instructables.com/id/century-eggs/
9. Play this game, writing down one reversible and one irreversible change - http://www.bbc.co.uk/schools/ks2bitesize/science/materials/changes_materials/play.shtml

Electricity and Magnets

Today we're going to conclude our introduction to circuits and start ooking at magnets.  Answer the following in you books -

1. what are the two ends of a magnet? - http://www.bbc.co.uk/schools/ks3bitesize/science/energy_electricity_forces/magnets_electric_effects/revise2.shtml 
2. what is one way of creating a magnetic field with electricity?  - http://www.bbc.co.uk/schools/ks3bitesize/science/energy_electricity_forces/magnets_electric_effects/revise4.shtml
3. what is one common use for electromagnets? - http://www.bbc.co.uk/schools/ks3bitesize/science/energy_electricity_forces/magnets_electric_effects/revise5.shtml
4. Try this activity - what materials can the magnet pick up? - http://www.bbc.co.uk/schools/scienceclips/ages/7_8/magnets_springs.shtml
5. Which ends of magnets stick together? - http://www.coolmath-games.com/0-magnets/index.html
6. Which two kinds of particles are attracted to each other in this game? What repels what? - http://www.candystand.com/play/magnets
7. What charge does an electron have? - http://wiki.answers.com/Q/What_charge_does_an_electron_have
8. Extension - If an object (like a piece of plastic) had a lot of eletrons on it, would it attract more electrons or not? explain your answer.
9. If the electrons (red dots) are attracted to the blue circle, what charge must it have? - http://www.mjgames-online.com/games/electrons.php