Key Stage 2 (KS2) · Science

Properties and Changes of Materials: Practice Questions

3 multiple-choice questions marked as you go, and 5 written questions with worked solutions. All on Properties and Changes of Materials.

8 questions23 marksFree, no account

Question 1

1 mark

Which of the following describes a chemical change that results in the formation of a new material and is typically irreversible?

Question 2

1 mark

Which of the following is a chemical change that is typically irreversible?

Question 3

1 mark

Which of the following processes is an example of an irreversible change?

Question 4

3 marks

What are the three main states of matter that materials can exist in?

Write your answer out first, then check it against the worked solution.

Question 5

4 marks

When mixing salt into water, the salt seems to disappear. What is the name of this process, and is it a reversible or irreversible change?

Write your answer out first, then check it against the worked solution.

Question 6

5 marks

A student has a mixture of sand, salt, and small iron filings. Describe a sequence of three physical methods the student can use to separate these three materials completely.

Write your answer out first, then check it against the worked solution.

Question 7

4 marks

Properties and Changes of Materials
A student is testing different materials to see which are soluble in water. She adds one teaspoon of the following substances into separate beakers containing 100 ml of water and stirs for two minutes:
1. Salt
2. Sand
3. Sugar
4. Flour
(a) Which of these substances are soluble in water?
(b) Describe how the appearance of the liquid in the beaker containing sand would differ from the one containing salt after stirring.

Write your answer out first, then check it against the worked solution.

Question 8

4 marks

Properties and Changes of Materials
A student investigates the solubility of three different white powders: sugar, chalk, and salt. They add \(10\)g of each to \(100\)ml of water at \(25^{\circ}C\).

(a) Define the term solute in the context of this experiment.
(b) Which of these powders would form a saturated solution first if the student kept adding more of it? Assume salt is more soluble than sugar but chalk does not dissolve.
(c) If the student heats the water to \(60^{\circ}C\), how will the solubility of the sugar change? Explain why.

Write your answer out first, then check it against the worked solution.

* The content provided by thinka is generated by AI and may not always be accurate or up-to-date. Please use it as a supplementary resource and verify with official materials.

You've seen the model answer. Now get yours marked.

This page can show you how a good answer looks. It cannot tell you what your answer was missing. thinka marks your written work against the real mark scheme in about 15 seconds.

Get My Answers Marked Back to the notes

Want more questions like these? Get a fresh set on this topic, marked as you go.