Table of Contents

 

Week 1 | English Grammar

Day 1| Auxiliary verbs

Day 2 |Am/is/are

Day 3 |Am/is/are Questions

Day 4 |I am doing (present continuous)

Day 5 |Are you doing? (present continuous questions)

Day 6 |I do/work/like (present simple)(present continuous questions)

Week 2 | English Grammar

Day 1 |I don't... (present simple negative)

Day 2 |Do you...? (present simple questions)

Day 3 |I am doing (present continuous) I do (present simple)

Day 4 |I have... and I've got...

Day 5 |Was/were

Day 6 |Worked/got/went etc (past simple)

Week 3 | English Grammar

Day 1 |I didn't... did you...? (past simple negative and questions)

Day 2 |I was doing (past continuous)

Day 3 |I was doing (past continuous) and I did (past simple)

Day 4 |I have done (present perfect 1)

Day 5 |I've just... I've already... I haven't...yet (present perfect 2)

Day 6 |Have you ever...? (present perfect 3)

Week 4| English Grammar

Day 1 |How long have you...? (present perfect 4)

Day 2 |For, since, ago

Day 3 |I have done (present perfect) and I did (past)

Day 4 |Is done, was done (passive 1)

Day 5 |Is being done, has been done (passive 2)

Day 6 |Be/have/do in present and past tenses

Week 5| English Grammar

Day 1 |Regular and irregular verbs

Day 2 |What are you doing tomorrow?

Day 3 |I'm going to...

Day 4 |Will/shall (1)

Day 5 |Will/shall (2)

Day 6 |Might

Week 6| English Grammar

Day 1 |Can and could

Day 2 |Must, mustn't, don't, need to

Day 3 |Should

Day 4 |I have to

Day 5 |Would you like...?

Day 6 |Do this! Don't do that! Let's do that

Week 7| English Grammar

Day 1 |I used to...

Day 2 |There is... There are...

Day 3 |There was/were... There has/have been... There will be...

Day 4 |It...

Day 5 |I am, I don't

Day 6 |Have you? Are you? Don't you? etc

Week 8| English Grammar

Day 1 |Too/either/so am I/neither do I etc

Day 2 |Isn't/haven't/don't etc (negatives)

Day 3 |Do they? Is it? Have you?

Day 4 |Forming questions (who/what/why/where/when/which)

Day 5 |What...? Which...? How...?

Day 6 |How long does it take...?

Week 9| English Grammar

Day 1 |Do you know where...? I don't know what... etc

Day 2 |He/she said that... He/she told me that...

Day 3 |Work/working Go/going Do/doing

Day 4 |I want you to... I told you to...

Day 5 |I went to the shop to...

Day 6 |Go to... Go on... Go for... Go -ing... Get…

Week 10| English Grammar

Day 1 |Get...

Day 2 |Do and make

Day 3 |Have...

Day 4 |I/me He/him They/them etc

Day 5 |My/his/their etc

Day 6 |Whose is this? It's mine/yours/hers etc

Week 11| English Grammar

Day 1 |Myself/yourself/themselves etc

Day 2 |A/an...

Day 3 |Singular & plural

Day 4 |The...

Day 5 |Go to...

Day 6 |This/that/these/those

Week 12| English Grammar

Day 1 |Some & any

Day 2 |All/most/some/any/no/none etc

Day 3 |Adjectives

Day 4 |Adverbs

Day 5 |Imperatives

Day 6 |And but or so because

Week 13| English Grammar

Day 1 |When...

Day 2 |If we go... if you see... etc

Day 3 |If I had... If we went... etc

Day 4 |A person who... A thing that/which (relative clauses 1)

Day 5 |How long have you…?(present perfect 4)

Day 6 |For since ago

The Periodic Table


The pH scale is a measure of how acidic or basic a solution is. It ranges from 0-14, with zero being the most acidic and 14 being the most alkaline. 7, being exactly in the middle, is what would be termed as neutral.

Any number less than seven is considered to be acidic – the lower the number, the more acidic the substance. 4 -6 would be considered ‘weakly acidic’.

Any number higher than seven is considered to be alkaline – the higher the number, the more alkaline the substance. 8-10 would be considered ‘weakly alkaline

Substances which are very strongly acidic or alkaline tend to be reactive and can be even cause chemical burns, if not handled with care.

Measuring the pH

There are several different ways to measure the pH and find out whether a solution is acidic, alkaline or neutral. Some of these methods, such as Universal Indicator, will give an approximate numerical value on the pH scale, while others, such as Litmus paper, will only give a colour indication as to whether the solution is acidic, alkaline or neutral.

Universal Indicator

Universal indicator is a mix of several different indicators, which effectively allows it to show the whole range of different pHs.

It can be found in paper form, which is known as a pH test strip, or as a liquid solution which simply needs to be dropped onto a sample of the substance. After a couple minutes, there should be a colour change. The new colour should then be compared with the scale kit that is provided with the indicator and the pH can be estimated.  Generally, the paper form is used when the solution is a dark colour already, while the liquid indicator is used on colourless samples.

Litmus Paper

Litmus paper can tell you if a solution is acidic or basic, but there is no ranging scale as there is in Universal Indicator. Instead, there will one of two colour changes to either red or blue and that is the result. If the Litmus paper is made wet, you can also measure the pH of gasses.

When Litmus paper is in neutral conditions, it will be purple.

When Litmus paper is in fairly strong acidic conditions (less than 4.5), it will be red.

When Litmus paper is in fairly strong alkaline conditions (more than 8.3), it will be blue.

KS3 Chemistry Questions – The pH Scale


1. What would 13 represent on the pH scale?

a. Acid
b. Alkali
c. Neutral
d. There’s no 13 on the pH scale

2. What number would represent a neutral substance?

a. 1
b. 4
c. 7
d. 10
e. 12

3. Which of these is NOT a form of Universal Indicator?

a. Paper strip
b. Gas
c. Liquid

4. Which of these is the most alkaline?

a. Bicarbonate of soda – pH 10
b. Water – pH 7
c. Sodium hydroxide – pH 12
d. Vinegar – pH 4

1. How does Litmus paper work?

2. Why is it important to know if something is strongly acidic or alkaline?

3. Lemon juice is a weak acid. Approximately where on the pH scale would it be found?

4. How is Universal Indicator different to Litmus paper?

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