Question 1 of 3 · No calculator needed
Which description matches particles in a liquid?
Liquid particles remain close together but have enough energy to move around one another, so a liquid flows while keeping a nearly fixed volume.
Pearson Edexcel International GCSE · Linear · International GCSEChemistry,
Chemistry,
one step at a time.
Specification 4CH1. Explore a topic, practise the skill, and see where to focus next.
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Pearson Edexcel International GCSE · Linear · 4CH1LearningP is independent of Pearson Edexcel International GCSE · Linear. Use the current official documents for assessment requirements.
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Three questions. See the difference.
Try three different Chemistry skills from this Pearson Edexcel International GCSE · Linear route. See what went right, understand a mistake, and find a useful next step.
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Question 2 of 3 · No calculator needed
Why does Group 1 reactivity increase from lithium to potassium?
Extra electron shells increase distance and shielding, weakening attraction to the outer electron so it is lost more easily.
Question 3 of 3 · No calculator needed
In a simple solution calorimetry experiment, which change most directly reduces heat loss to the room?
An insulated cup and lid reduce energy transfer through the sides and by evaporation, improving the estimate of heat released to the solution.
These tiles show your answers to three questions. They are a starting point, not a mastery score or grade prediction.
Principles of chemistry
Correct answer: Close together, randomly arranged and able to move past one another
Liquid particles remain close together but have enough energy to move around one another, so a liquid flows while keeping a nearly fixed volume.
Inorganic chemistry
Correct answer: The outer electron is farther from the nucleus and more shielded
Extra electron shells increase distance and shielding, weakening attraction to the outer electron so it is lost more easily.
Physical chemistry
Correct answer: Use an insulated cup with a lid
An insulated cup and lid reduce energy transfer through the sides and by evaporation, improving the estimate of heat released to the solution.
For parents: look at the explanation together. A correct answer is encouraging; a missed answer gives you something specific to work on. Broader practice over time is needed to understand progress.
YOUR TOPIC MAP
4 areasFind your starting point.
01Principles of chemistry
Specification reference: 1
Partial evaporation makes a concentrated solution; cooling forms crystals, which are then filtered and dried. Strong heating to dryness may decompose some salts.
Watch for: Do not describe Principles of chemistry only at the observable level. Use the correct particles, bonding, energy change or quantitative relationship where the question requires it.
02Inorganic chemistry
Specification reference: 2
Excess insoluble oxide uses up the acid; filtration removes unreacted oxide. Partial evaporation and cooling crystallise the salt without decomposing it.
Watch for: Do not describe Inorganic chemistry only at the observable level. Use the correct particles, bonding, energy change or quantitative relationship where the question requires it.
03Physical chemistry
Specification reference: 3
A catalyst offers another pathway with a lower activation energy, increasing the fraction of successful collisions while remaining chemically unchanged overall.
Watch for: Do not describe Physical chemistry only at the observable level. Use the correct particles, bonding, energy change or quantitative relationship where the question requires it.
04Organic chemistry
Specification reference: 4
Low temperatures make fermentation slow, while high temperatures denature yeast enzymes. Excluding air maintains the anaerobic pathway that produces ethanol.
Watch for: Do not describe Organic chemistry only at the observable level. Use the correct particles, bonding, energy change or quantitative relationship where the question requires it.
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Pearson Edexcel International GCSE · Linear · International GCSE · Chemistry · 4CH1
Issue 3, September 2024; current checked 28 August 2026
Source checked: 2026-08-28. The current official specification controls assessment requirements and option choices.
Can parents and students try LearningP before signing up?
Yes. This page offers three original questions from three different skills on this exact course. Each answer has an explanation, followed by a sample heatmap showing what was correct and what to revisit. No account is needed, and taster answers are not saved.
What does the three-question heatmap tell a parent?
It shows the outcome of these three answers and gives a specific skill to discuss or practise next. It is not a full assessment, a mastery score or a grade prediction. Broader practice over time is needed to understand progress.
What does the Pearson Edexcel International GCSE · Linear International GCSE Chemistry route cover?
LearningP currently maps 4 assessed areas for specification 4CH1. The visible topic map below is derived from the verified route; the current official specification remains controlling.
How many LearningP questions support this route?
The verified source bank contains 135 original LearningP question records for this route. Every mapped area meets the current publication minimum and passed the latest blocker and review audit.
Does LearningP reproduce official exam questions?
No. LearningP uses official specifications and assessment materials to map content and demand, while its practice questions and explanations are independently authored.
Can this page predict an exam grade?
No. LearningP reports practice evidence, coverage, strengths and gaps. It does not guarantee or automatically predict examination outcomes.
Where should current assessment information be checked?
Use the official Pearson Edexcel International GCSE · Linear specification and assessment-resource pages linked on this page, together with information supplied by the learner’s school.
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