Year 4 / Primary Science / Physics foundations / States of matter
Solids, liquids and gases: structured theory, worked examples, answered practice, and a mastery checklist for Year 4.
Розділ
Ключові ідеї глави у зрозумілій послідовності перед практикою.
Modern physics uses models tested by spectra, scattering, decays, and detectors. Distinguish an observation from its interpretation.
A single nuclear decay is random, but large samples follow predictable laws. Use half-life or an exponential relation with the correct scale.
In atomic and nuclear processes, check energy, momentum, charge, and particle numbers where applicable. Do not mix eV and J without conversion.
For “particle model foundation”, start from an observation or model, define quantities and units where relevant, and separate the changed factor from the measured outcome. Support the conclusion with data and state the test's limitations.
For “properties”, start from an observation or model, define quantities and units where relevant, and separate the changed factor from the measured outcome. Support the conclusion with data and state the test's limitations.
For “classification”, start from an observation or model, define quantities and units where relevant, and separate the changed factor from the measured outcome. Support the conclusion with data and state the test's limitations.
Primary Science / Physics foundations
Дотримуйтесь методу крок за кроком і перевіряйте обґрунтування.
In a safe test about “particle model foundation”, the first condition gives 10 units and the second 7. Which is greater, and what should be kept the same?
The first value is greater by 3 units. A fair test changes only one factor.
Explain “particle model foundation” in your own words and use a picture, objects, a table, or a simple measurement to support it.
A complete explanation connects the correct idea, a clear representation, and a sensible check.
Solids, liquids and gases
Вісім завдань від базових навичок до екзаменаційного рівня. Спочатку виконайте самостійно.
Record 5 safe observations about “particle model foundation” without writing a conclusion yet.
An observation is something seen, heard, or measured.
The response needs 5 specific observable or measurable statements, not guesses about cause.
Design a fair test for “properties”: what changes, what is measured, and which 5 things stay the same?
Change one factor only.
Full response: one changed factor, one measurable outcome, and 5 controlled conditions.
Measurements are 4, 2, and 6 units. Put them in a table, find the greatest, and the difference from the least.
Use condition and measurement headings.
Greatest 6, least 2, difference 4 units.
Sort examples of “particle model foundation” into two groups and state the sorting rule.
Each item should clearly match one group.
A full response gives two named groups, at least two examples in each, and an observable sorting rule.
Choose a suitable tool and unit to measure something connected with “properties”.
Decide whether you measure length, time, mass, temperature, or volume.
The quantity, instrument, and unit must match, e.g. time-stopwatch-s or length-ruler-cm.
From data 6, 9, 12, predict the next value and explain the pattern.
Look for the constant change +3.
15; +3.
Write 5 safety rules for a simple activity about “particle model foundation” and explain the risk each reduces.
Link each rule to a reason.
A full response gives 5 specific rules, each linked to a risk, and requires supervision where appropriate.
Data A=5 and B=7. Write a conclusion, evidence, and one limitation about “properties”.
Do not claim more than the two values show.
B is 2 greater than A. The values support this, but two measurements alone do not prove a general rule.
Solids, liquids and gases
Шість різних завдань від базового рівня до складного з часом, підказками та відповідями.
Homework 1: Record 8 safe observations about “particle model foundation” without writing a conclusion yet.
An observation is something seen, heard, or measured.
The response needs 8 specific observable or measurable statements, not guesses about cause.
Homework 2: Design a fair test for “properties”: what changes, what is measured, and which 6 things stay the same?
Change one factor only.
Full response: one changed factor, one measurable outcome, and 6 controlled conditions.
Homework 3: Measurements are 7, 3, and 10 units. Put them in a table, find the greatest, and the difference from the least.
Use condition and measurement headings.
Greatest 10, least 3, difference 7 units.
Homework 4: Sort examples of “particle model foundation” into two groups and state the sorting rule.
Each item should clearly match one group.
A full response gives two named groups, at least two examples in each, and an observable sorting rule.
Homework 5: Choose a suitable tool and unit to measure something connected with “properties”.
Decide whether you measure length, time, mass, temperature, or volume.
The quantity, instrument, and unit must match, e.g. time-stopwatch-s or length-ruler-cm.
Homework 6: From data 9, 13, 17, predict the next value and explain the pattern.
Look for the constant change +4.
21; +4.
35 хвилин / 30 балів
Повний тест із таймером, балами та зразками відповідей.
Start the timer when ready, work without notes, show every step, and open model answers only after finishing.
1. Record 6 safe observations about “particle model foundation” without writing a conclusion yet.
2 балівThe response needs 6 specific observable or measurable statements, not guesses about cause.
2. Design a fair test for “properties”: what changes, what is measured, and which 6 things stay the same?
3 балівFull response: one changed factor, one measurable outcome, and 6 controlled conditions.
3. Measurements are 5, 3, and 8 units. Put them in a table, find the greatest, and the difference from the least.
3 балівGreatest 8, least 3, difference 5 units.
4. Sort examples of “particle model foundation” into two groups and state the sorting rule.
4 балівA full response gives two named groups, at least two examples in each, and an observable sorting rule.
5. Choose a suitable tool and unit to measure something connected with “properties”.
4 балівThe quantity, instrument, and unit must match, e.g. time-stopwatch-s or length-ruler-cm.
6. From data 7, 11, 15, predict the next value and explain the pattern.
4 балів19; +4.
7. Write 6 safety rules for a simple activity about “particle model foundation” and explain the risk each reduces.
5 балівA full response gives 6 specific rules, each linked to a risk, and requires supervision where appropriate.
8. Data A=6 and B=9. Write a conclusion, evidence, and one limitation about “properties”.
5 балівB is 3 greater than A. The values support this, but two measurements alone do not prove a general rule.
Розділ
Джерела програми; порядок тем уточнюйте у школі та викладача.
Primary Science / Physics foundations
Year 4: структурований маршрут з математики та фізики з розділами, практикою і наступними кроками.
Структура відповідає підручнику й допомагає організувати вивчення теми.
Теми, де найчастіше виникають помилки або потрібна додаткова практика.
З чого почати: підручник, daily material, PDFs, videos і worked examples.
Цільова практика перед full tests, щоб coverage було зрозумілим.
Як вимірювати прогрес у главі і коли додавати її до загального mock.
Що робити після глави і як вона пов'язана з наступним розділом.
Примітка: офіційну екзаменаційну програму кожного року завжди уточнюйте у школі, викладача та за поточними офіційними джерелами.
