A and E revision

Here are the answers to the revision sheet we used in class - use other sites on the internet such as http://www.bbc.co.uk/schools/ks3bitesize/science/organisms_behaviour_health/ if there is anything you don't understand.
Question 1
1. Excretory system - D
2. Nervous system - C
3. Circ. system - A
4. Respiratory - E
5. Skeletomuscular - B

Question 2.
The testes produce sprem, and are located in the scrotum below the penis in the diagram.
Question 3.
c
b
a
f
a
d
e
Ciliated dell (cilia are the little hairs on the outside).
Lungs (cilia help to move dust and mucus out of our lungs so we can breath easily).

Question 4.
a. Sperm cell
b. Egg cell
The sperm cell has a tail as it needs to swim up through the uterus and fallopian tubes to find the egg.

For the final page (before the crossword), make sure you have put something down in each section.  Cells and body parts used in fertilisation and pregnancy - Egg, Sperm, Penis, vagina, testes, urethra, cervix, uterus, fallopian tube, ovary.
Problems that can occur in pregnancy - breech position, caesarean section.
Different types of cells found in the body - apart from sex cells, know what cilia do and where they can be found.
Different organs in the body - What the major organs and systems are (from question 1) and what they do in the body.

I.T. lesson

Answer the following questions in your books, using the website provided (or others you can find) to help you.

1. What are the three sections of pregnancy called?
2. Whereabouts are sperm produced?
3. Make a short list of health problems that may be faced by pregnant mothers:
4. If a baby has been developing inside the mother for 35 weeks and is 31cm long, is it larger or smaller tan average?
5. Try this crossword, checking the answers as you go. http://www.ntscience.co.uk/science-crossword/7b-reproductionj.html
6. Once you have completed the activity on the last link, explain one thing that the game is correct about and one thing that doesn't happen before a baby is born.

http://www.bbc.co.uk/health/tools/pregnancy_calendar/ - Use this website to help you answer the questions about different stages of pregnancy.

http://www.bbc.co.uk/schools/ks3bitesize/science/organisms_behaviour_health/reproduction/activity.shtml - Use this website to go through the material covered in the A & E unit.  Take the test at the end and see how much you can remember!
http://www.nlm.nih.gov/medlineplus/healthproblemsinpregnancy.html - Help with the health problems associated with pregnancy.
http://www.babycentre.co.uk/pregnancy/fetaldevelopment/chart/ - Gives information about how large babies are at different stages.

Try this once you're finished - http://www.miniclip.com/games/baby-blimp/en/

A & E

Now that we've finished our section of the reproduction section, make sure that you remember the three different stages we looked at - fertilisation, pregnancy and birth.
For fertilisation, make sure you know which body parts are involved (the testes and penis, ovaries, fallopian/egg tubes, uterus, egg and sperm) and the steps that have to occur.
For pregnancy, know how long it takes and and things that the foetus does during this time.
For birth, remember the steps in order as well as problems that can occur (breeches, caesareans).  I'll have a talk with Mrs. Lynch to work out when the test will be and let you know, we'll have a revision lesson again so don't worry!

Revision sheets

Here are sample answers for the revision sheet from class today.  Make sure you have a look at it before the test on Friday!
1. For the water in a kettle, you need to draw the particles in a liquid (slightly spread out, moving slowly).  The steam occurs once the water has wamred up and particles have changed to gas.  These will be moving around very fast and more spread out than the liquid below them.
2. To make something go from a solid to a liquid or a gas it has to be heated (when energy goes in).  If something is cooling down from a gas to a liquid or liquid to solid (like the ice cream mixture), energy must be taken out of it.
3. Chemical changes

• are irreversible
• Can have colour changes
• Can produce new smells

4. Water boiling is a physical change not a chemical one as it can be reversed (cooling the steam will produce liquid water again).
5. The crepe directly touching the pan is heated by conduction.
6.

• Convection - Boiling a potato
• Radiation - Cooking with a microwave or a grill.

7. Raw eggs contain long string-like particles called proteins.  Normally they float around separately and keep a certain shape, but when they are heated they change shape and stick together.  This forms a solid and is an irreversible chemical change.
8. When ice cream forms by cooling a liquid and making a solid, water in the liquid becomes ice crystals.  The longer the mixture takes to freeze, the larger the ice crystals become.  This gives the ice cream a 'rough' feel in your mouth and makes it taste bad.  If it is frozen quickly, the crystals stay small and it tastes smooth.

Good luck, please come and find me if you have any questions!

Cook

Our new unit for this term is called Cook, and looks at the Science involved with cooking.  Make sure that you remember the three ways that food can be heated or cooked, this website will help you.  It doesn't specifically mention cooking but may be helpful for you to remember:
http://www.wisc-online.com/Objects/ViewObject.aspx?ID=SCE304

Revision for test

Here is the document that we started using for revision today. 
https://docs.google.com/document/d/1G74oqmFPE_RebGeJ5XCeXsdCUQEX1dcQRaUYpcXZvOY/edit?hl=en#
If you understand what each section is asking you about you'll be fine for the test.  Remember that for number two you only need to draw arrows showing how strong the forces are that are acting on the object. 

The object can be stationary (still), moving (constant speed) or getting faster (accelerating).  If the two forces are equal they are balanced, if they're unequal they are unbalanced.  Let me know if you have any questions by coming and seeing me at anytime or by emailing me before Wednesday.  Good luck!

Apologies

Sorry for the break in posts, I've been meaning to put things up for ages.  From what we've covered so far in Alien, you need to know how forces act on rockets on Earth and in Space, what makes up the rest of the Universe and our Solar System (and be able to name different things like planets, galaxies, stars etc.), remember what all living things on Earth are made from (it starts with C, which is also its chemical symbol), and what extremophiles are. 
Here is the extremophiles video we saw in class :

Make sure you remember that extraterrestrials probably don't look like little green men, but are small bacteria like these ones living in extreme conditions.  Conditions on other planets are very different to Earth (temperature, atmosphere, soil/rocks) and we can send landers like the ones we made in class to test what these conditions are.  Make sure that you're up to date with things as we'll be having a short test on this unit next week.

Alien

The topic for this term is going to be 'Alien' for classes with me, and 'Accident and Emergency' for your classes with Mrs. Lynch.  Sorry for the confusion! We will be scouring the Universe and looking for Aliens on other Planets, and learning about them on the way.

video

http://www.bbc.co.uk/iplayer/episode/b00rrd7w/Human_Planet_Rivers_Friend_and_Foe/ this is the link for the video we saw a few minutes of today.

This diagram will help you remember the names of the different organs in the body that we looked at.  Remember that bones are also very important but aren't in this diagram! You should know why each of the major body parts we looked at in class are important before next lesson, when we will use this knowledge for a practical.
Don't worry about knowing about the pancreas or the spleen yet, and you won't need to know the separate structures within the lungs either.

Welcome!

Hello Year 7, I've just created this site so I can share materials that will help you with the course.  Save the address in your favourites or keep it somewhere safe so you can check in regularly!  After half term we're going to start the next unit, A & E (Accident and Emergency).