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.

Homework 5: Adaptations

Practice your exam technique using these questions. FOUNDATION

HIGHER

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.