Treasure Inspiration
Particles & Matter
T

States of matter and changes of state

Build the core idea from scratch with gentle steps and lots of hints.

Combined Science · Beginner

5

questions · ~4 min · 3 hints each (−5 pts)

Confidence tracking, 3-tier hints and instant feedback.

What you'll learn

Each question helps you build key knowledge and skills.

  • 1Solids have particles packed closely together in a fixed pattern, so they have a fixed shape and volume.
  • 2Liquids have particles close together but able to move past each other, giving them a fixed volume but no fixed shape.
  • 3Gases have particles far apart moving quickly in all directions, so they have no fixed shape or volume.
  • 4Changes of state (melting, freezing, boiling, condensing, sublimation) are physical changes, so no mass is gained or lost overall.

Question mix

A mix of question types to build your skills.

  • Multiple choice×2
  • True / False×2
  • Fill the gap×1

Different question types help you think in different ways.

How it works

A simple 3-step process

  1. 1

    Rate your confidence

    Tell us how sure you feel before answering. It helps us understand your starting point.

  2. 2

    Use hints if stuck

    Get up to 3 helpful hints per question. Each hint costs 5 Treasure Points.

  3. 3

    See what went wrong

    Get instant feedback with clear explanations, so you can learn and improve.

Ready when you are

This takes about 4 minutes.