🎉 We’ve upgraded! Welcome to a faster, smoother Classroom 42.

Membership About Us Contact Us

Empowering education through technology.

Legal

Policies, GDPR & Legal

FAQs

Contact Us

support@classroom42.com
01789 569299

Socials

Twitter
Facebook

© 2026 Classroom 42. All rights reserved.

Course

KS3 Chemistry

Teachers - get access to all topics for teachers and pupils

Examinator Quizzes Videos Cheat Sheets My Work

Activity Generator Exam Builder

Filter Exam Questions

Filter by topic:

1: The Building Blocks of Matter

1: The Particulate Nature of Matter

States of Matter

Particle Theory to Explain Changes of State

Diffusion and Gas Pressure

2: Atoms Elements and Compounds

Dalton's Atomic Model

Chemical Symbols and Formulae

Comparing Atoms, Elements and Compounds

Chemical Reactions and Conservation of Mass

3: Pure and Impure Substances

Pure Substances

Mixtures

Diffusion

Separating Mixtures

Identifying Pure Substances

2: Reactions and Energy

1: Chemical Reactions

Chemical Reactions

Chemical Formulae and Using Equations

Types of Chemical Reactions

Acids and Alkalis

The pH scale and Indicators

Reactions of Acids

Catalysts

2: Energetics

Energy Changes in Chemical Reactions

Exothermic and Endothermic Chemical Reactions

3: The Periodic Table

Physical and Chemical Properties of Elements

Mendeleev's Periodic Table

The Periodic Table: Periods and Groups

The Periodic Table: Metals

The Periodic Table: Non-metals

3: Materials and the Earth

1: Materials

The Reactivity Series

The Extraction of Metals and Displacement Reactions

Properties of Ceramics, Polymers and Composites

2: The Earth and Atmosphere

Composition and Structure of the Earth

The Rock Cycle

The Use of Earth's Limited Resources

The Composition of the Atmosphere

The Impact of Human Activity on Earth's Systems

Filter by marks:

123456

Filter by question type:

StandardMathsGraph

Topic: 1: The Particulate Nature of Matter

The figure provides some information about Iodine. What state of matter is iodine at 20°C. Explain your answer.

(Marks: 2)

Question image

Your Answer: