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Globe Academy Science Department
GCSE Core Science Year 9
Homework Booklet Summer 2
Contents:
Topic Date Set
Date Due
Feedback/ Marking
1 Vaccines and Antibiotics Revision
2 Alkali Metals and Noble Gases Revision
Mid-Term Assessment Revision Checklist
3 Specific Heat Capacity Revision
Summer Exam Revision Help
4 Word Equation Task
5 Adaptations
6 Rates of Reactions and Concentration
7 Forces and Momentum
Look after this booklet. You will need to pay for a replacement.
Name: ______________________________________
Homework 1: Vaccines and Antibiotics Revision
Grade D Say three ways that white blood cells help to fight diseases.
Grade C Describe what antibiotics are.
Grade B: Explain how vaccines work.
Grade A: Evaluate how antibiotics have become resistant to some strains of bacteria.
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Independent Learning: To extend your revision on this topic you should revise this topic further by using
websites like http://www.docbrown.info/page20/AQAscibio11.htm.
Homework 2: Alkali Metals and Noble Gases Revision
Grade D: Using a periodic table, how many
electrons do these elements have:
1. Sodium
2. Helium
3. Lithium
4. Xeon
5. Potassium
Write next to each one if it is a noble gas or an
alkali metal too.
Grade C2: Draw the electron structure of
sodium (Na).
Draw the electron structure of neon (Ne).
Grade C1: Describe the pattern in reactivity of
the alkali metals and describe the reactivity of
the noble gases.
Grade B: Explain why noble gases are
unreactive.
Grade A: Give word and symbol equations for
the reactions of two alkali metals with water.
Grade A*: Explain why the reactivity of group
1 metals changes as you go down the group.
Independent Learning: To extend your revision for Chemistry you
should complete a past paper. Look at the one on and hand it to
be marked by your teacher.
http://filestore.aqa.org.uk/subjects/AQA-CHEM-W-SMS-1H.PDF
Mid-Term Assessment Revision Checklist Your mid-term assessment will cover everything from Core Science to help you prepare for your end of year exam. You must use your exercise book and revision guide. You should use revision websites to help too, such as MyGCSEscience, BBC Bitesize and DocBrown. Remember your exam board is AQA Science A. Here is a checklist of all the topics you need to revise.
BIOLOGY B1.1.1 Diet and exercise B1.1.2 How our bodies defend themselves against infectious diseases B1.2 Nerves and hormones B1.2.2 Control in the human body B1.2.3 Control in plants B1.3.1 Drugs B1.4.1 Adaptations B1.4.2 Environmental change B1.5.1 Energy in biomass B1.6.1 Decay processes B1.6.2 The carbon cycle B1.7 Genetic variation and its control B1.7.2 Reproduction B1.8.1 Evolution CHEMISTRY C1.1.1 Atoms
C1.1.2 The periodic table
C1.1.3 Chemical reactions
C1.2 Limestone and building materials
C1.3 Metals and their uses
C1.3.2 Alloys
C1.3.3 Properties and uses of metals
C1.4 Crude oil and fuels
C1.4.2 Hydrocarbons
C1.4.3 Hydrocarbon fuels
C1.5 Other useful substances from crude oil
C1.5.2 Polymers
C1.5.3 Ethanol
C1.6 Plant oils and their uses
C1.6.2 Emulsions
C1.6.3 Saturated and unsaturated oils
C1.7 Changes in the Earth and its atmosphere
C1.7.2 The Earth’s atmosphere
PHYSICS
P1.1.1 Infrared radiation
P1.1.2 Kinetic theory
P1.1.3 Energy transfer by heating
P1.1.4 Heating and insulating buildings
P1.2.1 Energy transfers and efficiency
P1.3.1 Transferring electrical energy
P1.4.1 Generating electricity
P1.4.2 The National Grid
P1.5.1 General properties of waves
P1.5.2 Reflection
P1.5.3 Sound
P1.5.4 Red-shift
Homework 3: Specific Heat Capacity Calculations
Calculating specific heat capacity
Here is the equation relating energy to specific heat capacity:
E = m × c × θ
E is the energy transferred in joules, J m is the mass of the substances in kg c is the specific heat capacity in J / kg °C θ (‘theta’) is the temperature change in degrees Celsius, °C
EASY: For this section, just use the formula as it is above.
Compound A is an imaginary solid. It has a Specific Heat Capacity of 1000 J / kg C
a A 1 kg block of Compound A is heated, increasing its temperature by
1 C. How much energy has been added to the block?
b A 1 kg block of Compound A is heated, increasing its temperature by
10 C. How much energy has been added to the block?
c A 1 kg block of Compound A is heated, increasing its energy by 1000 Joules. How much warmer does it get?
d A 1 kg block of Compound A is heated, increasing its energy by 3000 Joules. How much warmer does it get?
MEDIUM: Analyse some data to help you with the question. Specific Heat Capacity values
Water 4,180 J / kg C
Copper 390 J / kg C
Glass 840 J / kg C
a Which substance requires the least amount of energy to raise its temperature?
b How much energy is needed to increase the temperature of 1kg of
water by 10C?
c How much energy is needed to increase the temperature of 1kg of
copper by 10C?
d A 1 kg block of copper is put in 2 kg of water.
How much energy is needed to increase the temperature by 10C?
HARD: Here you need to rearrange the equation using the formula triangle.
a 10,000 J is added to 1kg of water. How much does the water temperature increase by?
b 10,000 J is added to 1kg of copper. How much does the water temperature increase by?
c 10,000 J is added to 1kg of glass. How much does the water temperature increase by?
d 20,000 J is added to 4kg of copper. How much does the water temperature increase by?
m
E
m c θ
θ θ
Independent
Learning: To extend
your revision for
Physics you should
complete a past
paper.
Summer Exam Revision Help
To revise for your summer exam, you should use your revision guide, your past homework booklets and your exercise book. You should use the checklist earlier in this booklet to make sure you revise everything. Completing practice exam papers will help too. How to revise for Science:
Step 1• Read a topic in the revision guide (e.g. about 3
or 4 pages from the CGP revision guide).
Step 2• Make your own notes on this topic (mind maps/
posters/spider diagrams/revision cards).
Step 3• Check your exercise book to see what you did
on that topic and add to your notes.
Step 4• Cover up your notes and write out from
memory. Repeat until you know it all!
Step 5• Complete practice exam questions on that topic
from past papers or worksheets in your book.
Step 6• Tick off that topic on your checklist and move
onto the next topic!
Homework 4: Word Equation Task
EASY: Name the type of salts that these acids make.
1. Hydrochloric acid makes........................ salts. 2. Nitric acid makes ............................ salts. 3. Sulfuric acid makes ........................... salts.
What acids were these salts made from?
1. Copper sulfate? _____________________ 2. Copper chloride? ________________________ 3. Silver nitrate? ________________________ 4. Iron sulfate? ____________________
MEDIUM: Complete these word equations.
1. calcium carbonate + hydrochloric acid
2. potassium carbonate + sulfuric acid
3. magnesium carbonate + nitric acid
4. sodium carbonate + hydrochloric acid
HARD: Use the data in the table to write balanced symbol equations for the word equations from the MEDIUM questions.
compound formula
acid
s
sulfuric acid H2 SO4
hydrochloric HCl
nitric HNO3
ba
ses
sodium hydroxide NaOH
potassium hydroxide KOH
calcium hydroxide Ca(OH)2
sa
lts
sodium chloride NaCl
potassium sulfate K2 SO4
calcium sulfate CaSO4
magnesium nitrate Mg(NO3)2
1.
2.
3.
4.
acid + metal carbonate salt + water + carbon dioxide
Independent Learning: To extend your learning you should look up word
equations for other acid reactions, like acid and metals or acids and metal oxides.
Independent Learning: Research the adaptations of an unusual animal or plant in the library or on the internet. In the
space below, draw the animal and plant and explain its adaptations. Ask your teacher if you can’t think of one!
Homework 6: Rates of Reactions and Concentration
Use the boxes below to make a story about a particle in a chemical reaction. You can make cartoon drawings, use
rhymes or simply write a story. The first five boxes are to explain the particle reacting at a low concentration.
Then explain how this reaction changes as the concentration is increased.
The Story of Concentration and Rate of Reaction
In the beginning, there was
just some particles...
… when suddenly the
concentration began to
increase!
Success Criteria Grade D: Written or drawn how the particles are different at high and low concentrations. Grade C: Described what happens to the rate of reaction when concentration is increased. Grade B: Explained why that happens to the rate of reaction when concentration is increased. Grade A: Used the words “successful collisions” and “activation energy” in your text.
Independent Learning: Extend your learning looking at rates of reactions simulations
and models. Check out https://phet.colorado.edu/en/simulation/reactions-and-rates
Homework 7: Forces and Momentum
This lesson you completed an experiment about forces and momentum. Write
up your experiment using these subheadings.
Hypothesis Say what you wanted to find out.
Variables Say your independent, dependent and control variables.
Conclusion Explain what you found out.
Evaluation Explain if your test was fair, repeatable and reproducible.
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HANDY HELP: SENTENCE STARTERS In our experiment we wanted to find out if.... We changed........................, we measured..... ................... and we kept ............................. and ...................... the same. In conclusion, we found out that.... I think my test was/wasn’t fair because.... My experiment was/wasn’t reproducible because...
Independent Learning: Extend your
learning by finding out more about
momentum and how to calculate it.
Search online or look in a Science text
book.