Revision


Before you start these revision questions you will need to prepare yourself by

Making your Revision outline

How to study Science
1 make a glossary - every topic has a guide sheet - in the guide sheet there is a list of words and terms you should know -
2. Collect your notes - the guide sheet is a course outline that lists the main concepts you should learn and the main activities you should do. You should build your notes from your text and your notebook - but make sure you have information on each of the ideas listed in your guide sheet.
3. Sumarise your notes - a good summary will include diagrams and experiments that summarise the key concepts of each topic
4. convert all this into a concept map - you are aiming to get it down to a half page for each topic. Don't worry if yours is a bit bigger

Before the exam - get friends to test you on the glossary,
try to redraw the diagrams in your summary
complete and test or practice questions

During the exam:



     

Use Ed perfect to test yourself for each of the topics we have done so far.

topics to be tested this year in semester 2

  1. Chapter 8 Electromagnetism

  2. Chapter 5 Matter

  3. CHapter 6 chemical reactions (and 'inside the atom' is assumed knowledge)

  4. Chapter 2.1 to 2.4 inclusive Ecosystems

Here is an outline

YEAR 9 SCIENCE

SEMESTER 2 EXAM REVISION 2019

The exam will be undertaken on Tuesday 19th November. There will be 10 minutes of reading and 60 minutes of writing time in the exam. The exam will consist of both multiple choice questions and short answer questions.

Where to start your revision?

Here are a few tips to get you started for Science: - see above

Year 9 Semester 2 - Science Revision Topics

Electromagnetism: Reference: Chapter 8.1-8.2 and Electromagnetism Activities Booklet

 Describe the magnetic field surrounding a magnet including attraction and repulsion forces (Activity 1a).

 Explain how electricity can be used to create a magnet (Activity 1c).

 Distinguish the characteristics between electromagnets and permanent magnets.

 Use and draw the right-hand grip rule to determine the direction of the magnetic field around an electrical wire (Activity 1c)

 Discuss how increasing the coils of wire and using iron can create stronger magnetic fields (Activity 1d).

 Explain how and why solenoids and electromagnets are created and how electricity can be generated by moving a magnet in coils of wire (electromagnetic conduction) (Activity 3b).

 Explain how the magnetic field produced by a current-carrying wire interacts with the magnetic field surrounding a magnet to exert a force.

 Use and draw the right-hand slap rule to determine the direction the wires will move (including direction of current, magnetic field and force). (Activity 2a).

 Explain how electricity can be produced using a generator (electromagnetic induction) by turning a wheel to rotate coils in a magnetic field (Activity 3c).

Chemistry - Matter: Reference: Chapter 5.1-5.8

 Define electrons, Thomson plum pudding model, nucleus, protons and neutrons.

 Describe the Rutherford model of an atom and Rutherford’s gold foil experiments on atoms.

 Describe how the elements are ordered on the periodic table.

 Define mass number, atomic number, groups and periods.

 Identify mass number, atomic number and element symbol using conventional representation of an element.

 Calculate mass number from the number of protons and neutrons (protons + neutrons).

 Determine the number of electrons in an atom from the number of protons.

 Determine the number of neutrons from atomic mass – atomic number.

 Relate emission spectra to movement of electrons between shells.

 Draw shell diagrams of the electron configurations for the first 20 elements of the periodic table.

 Draw shell diagrams of the electron configurations of ions.

 Define ion, anion and cation.

 Relate the number of electrons in the valence shell to whether the atom will become an anion or cation and calculate the charge of an ion.

 Define isotope and relative atomic mass.

 Describe the structure of an isotope compared to an atom.

 Define radioactive decay, radionuclide, alpha radiation, beta radiation and gamma radiation.

 Describe the relationship between a half-life and the number of atoms of a substance.

Chemical Reactions: Reference: Chapter 6.1-6.5

 Identify the reactants and products in a simple experiment/chemical equation.

 Include subscripts for the states of reactants and products of a reaction in word equations (aq, l, s, g).

 Define chemical reaction, exothermic reactions, endothermic reactions, reactants, products, solution.

 Describe endothermic and exothermic reactions in terms of energy released or absorbed and change in overall temperature.

 Provide examples of endothermic reactions and examples of exothermic reactions.

 Define alkalis, acid, indicator, litmus paper, universal indicator, pH scale and neutral.

 Provide examples of acids and bases and describe their characteristics, including their pH.

 Explain the structure of the pH scale – 7 is neutral, < 7 is acidic and > 7 is basic.

 Relate the colour of litmus paper in acids (red) and bases (blue)

 Define neutralisation reaction between acids and bases.

 Describe the key characteristics of neutralisation, acid-metal carbonate and bicarbonate reactions.

 Provide examples of uses of acid-metal reactions and disadvantages of acid-metal reactions (eg. acid rain).

 Describe the key characteristics of a metal or non-metal reacting with oxygen and a combustion reaction.

 Provide examples of combustion reactions in life: hydrocarbons.

Ecosystems: Reference: Chapter 2

 Define biosphere, ecosystem, biotic, abiotic, habitat, population and community.

 Identify abiotic and biotic components of an ecosystem.

 Distinguish the types of relationships that exist in an ecosystem and identify if they are beneficial or detrimental.

 Define collaboration, mating, competition, symbiosis, mutualism, commensalism and parasitism.

 Understand the role decomposers play in an ecosystem.

 Understand the various sampling methods used to determine population size.

 Understand the biotic and abiotic factors that affect population size and consequences on the food web for an ecosystem.

 Understand how invasive species affect ecosystems.

Here are some quizlets

to revise all the topics at once use this

https://quizlet.com/_7d7hzg


to revise the terms in ecosystems
https://quizlet.com/join/Ueqe8MD59


Here is one for chemical reactions and inside the atom
https://quizlet.com/_3lr7nw

here is another for matter ch 5  https://quizlet.com/302515643/matter-chapter-5-diagram/  it is very detailed

Here is one on electromagnetism

https://quizlet.com/285328589/science-8-chapter-19-magnetism-and-electromagnetism-flash-cards/

Here is a practice questions for this years exam

Chemical Reactions Exam Revision.docx

Ecosystems Exam Revision.docx

More ecosystem revision.docx




And some powerpoints to go through
Part 3 CHEMICAL REACTIONS.pptx

Part 1 ECOSYSTEMS.pptx
Here is an old summary sheet of all the main things for the exam from last year -- don't do the dynamic earth

2013 Science Rev Sem2_2013.doc
_

Go here to find the Year 9 Test pages - there are some online tests - use them like a revision sheet or a quiz to review the topic

Year+9+tests

Ecosystems

this is your progress test

 
Access Code ECOPT
Access Links
Test Link http://www.classroomclipboard.com/490625/Test/3314BAF2FD434C58B13D156A46DFB823




Some Extra practice questions for the end of semester 2 exam
Ecology

  1. Give examples of an autotroph, herbivore, producer, 3rd order consumer
  2. how are the following different
  3. - ecosystem and community, biosphere and environment, population and habitat
  4. wite the equations for photosynthesis
  5. write the equation for respiration
  6. use the following terms to explain transpiration -- stoma, stomates,xylem, water, water vapour
  7. use the following words to explain the purpose of translocation - phloem, photosynthesis, strach tuber, respiration, leaves
  8. draw a food chain that has 4 elements.
  9. use the food chain above to develop a pyramid of numbers and a pyramid of biomass
  10. sampling a habitat what is the difference between a quadrat sampling and a transect, capture counting and capture release counting.
  11. in a habitat some animals eat very similar food , others eat each other, and others need other animals to help them survive. explain and give examples of commensalism, parsitism, predator, from the same habitat.
  12. describe how water loss is controlled in a plant: use the terms, stomate, guard cell, transpiration, xylem, air spaces, flacid and turgid
  13. design an experiment to test the effectiveness of seaweed fertiliser on plant growth:use the terms dependent variable, independent variable, control, fair test,




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Yr 9 Revision semester 2
Answers to chemistry
1. a) NaCl b) CO
2. a) HCl, b) NaOH c) HCl d) water e) NaOH f) vinegar, g) detergent h) Mg 2+ i) Cl-
3. a) NaCl, b) AlCl3 c) MgNO3 d) CaSO4

4. How many of each atom
a) 1 Mg, 2 N, 6 O
b) 2 Ag, 1 S
c) 1 Fe, 3 Cl

6. a) Precipitation b) Combustion, c) Neutralisation
8. Endothermic - takes in heat -makes surroundings cold - thermometer goes down
Exothermic, gives out heat, makes surroundings hot, thermometer goes up
9. Physical change is a change of state or mixing things together that can be separated using physical means - eg filtering, evaporation etc
Chemical change is the result of a combining of atoms of an element to make a molecule usually evident by a temp change, gasses given off or colour change
10. 3 properties of an acid, corrosive, sour, gives off Hydrogen gas when it reacts with metals, turns blue litmus red, turns universal indicator red or orange or yellow,
3 properties of a base feel slippery, neutralise acids, turns red litmus blue, turns universal indicator blue, purple, tourquoise.

examples see question 2. strong base = sodium hydroxide.

11. pH scale tells us the concentration of Hydrogen ions present in a compound and hence tells us how strong the acid is
12. An indicator tells us the presence of an acid or a base. red litnus, blue litmus, universal indicator, methyl orange, phenopthalien
13 Netralisation
14. groups are vertical all elements have same number of electrons in the outer shell, Periods are are horizontals all elements have the same number of shells of electrons but different number of electrons in the outer shell.

15. Electronic configuration tells us the number of electrons in each shell of the atom in question.
16 C
2 X
3. C

Answers to Page 3 and Page 4

Yr9 revision answers p3 and 4.PDF
 

more revision questions on Disease

Part 2 THE BODY AT WAR.pptx

Body At War Exam Revision.docx

Revision for body at war 2015.docx

What fights disease but is carried in the blood
what fights disease and is carried in the lymph
what happens when your glands swell up
when you cut your self and get infected with bacteria the cut may get inflamed - why is this a good thing? --what would the antibodies do?---where would you find the antigens
How does the body remember if you have had chicken pox?
If you get an injection (vaccine) for the chicken pox you will expect that you will...........
If you get sick after the vaccine this might be a good thing why?
prions are blamed for causing mad cows disease- what organs were affected?
what tissue is affected by malaria plasmodium.
If there is an epidemic of malaria what would you expect to see?
the plague was an endemic or pandemic or epidemic?

Diseases

  1. What is the difference between infectious and non infectious, give an example of each
  2. rank these pathogens in order of size bacteria, prion, virus, protozoa Plasmodium
  3. Contagious disease can be controlled by _
  4. An example of a vector of black death is _
  5. An example of a vector for smal pox is
  6. An example of a vector for flu is
  7. How does your body fight this flu virus?
  8. could you become immune to the flu virus?
  9. "Prevention is better than cure" give an example of a disease that is caused by a bacteria and explain how it might be prevented.
  10. How do you prevent small pox? give a few examples
  11. Give some examples of non contagious diseases
  12. explain the difference between plague and pandemic

______________________________________________________________________________________________________

f
name the supercontinents in order of appearance -Pangea, ----->laurasia and gondwanaland
where was Australia 200million years ago - closer to the equator or closer to the south pole -sth pole
How did fossils of rainforests occur in Antarctica - rainforests occurred when antarctica was closer to the equator where the rf can grow. but died out and became fossiled as antarctica moved to the south pole.
When 2 continental plates collide what is the result? -earth quake, mountain ranges - eg humalayas

When an ocean plate slides under a continental plate it is called a _....... Subduction zone...... an example is - south america - Andes mountain range

Why might volcanoes appear above this area? - all the ocean plate is being melted and a big blob of molten magma may sit beneath the mountain range and gradually melt its way to the top.


what is magma and how do convection currents drive continental drift

how do earth quakes occur (because the plates slide past each other in a jerky motion releasing the built up energy) -
where would you find the focus, epicentre - see page 289 - focus is where the plats are liding past each other and the epicentre is the land surafce directly above it.

In a volcano where would you find the crater --- is the top of the volcano - tits the main outlet for lava ----- and the vent - at the side and is a minor outlet for lava

how does continental drift explain the following,
tsunamis,--plates move under the sea- may cause a plate to lift - this pushes the water out of the way and makes a wave.
himalayas,
deep ocean trenches like the marianas trench. ----


TARGETTED REVISION quizlets - these help you with the revision of terms required for your exam.
http://quizlet.com/class/737994/


Another set of quizlets for you
http://quizlet.com/class/851139/

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More dynamic Earth questions
Dynamic Earth
Describe how the continents might be drifting - convection currents in the magma are making the plates above move towards or away.. diagrams??
what evidence is thereof this?
The continental plates started off all together as one super continent called Pangea. What happened after this? formed G and L

explain how the continents could move?
the hot magma has convection currents and this pushes the plates riding on top around the earth.
What continents made up gondwanaland? Africa, Sth America, Australia, Antarctica- what are the main continents to make up Laurasia Nth America, europe and asia

list some evidence that geologists use for proving that gondwanaland and Laurasia were once joined together. fit together , fossils identiacl and found on each supercontinent. Rock layers match up, fossila of animals, plants, pollen
for each of these describe the movement of the continental or ocean plates

how is a mid ocean ridge formed - ocean plates being forced apart by the magma coming up between them pushing them apart.

how were the himalayas formed continental plates collideing and being pushed up

how were the andes mountains formed- an ocean plate sliding under an continental plate and forcing the continental plate to buckle, some volcanoes will form also.



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