Treasure Inspiration
Particles & Matter
T

Density and separating mixtures

Push a bit harder. Apply what you know to less familiar problems.

Combined Science · Medium

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.

  • 1Density is calculated using the formula density = mass ÷ volume, usually measured in g/cm³ or kg/m³.
  • 2The volume of a regular solid can be calculated using its dimensions, while an irregular solid's volume is found using water displacement.
  • 3Filtration separates an insoluble solid from a liquid, while evaporation and distillation separate a dissolved solid or liquid from a solution.
  • 4Chromatography separates substances based on how they travel differently through a material such as paper.

Question mix

A mix of question types to build your skills.

  • Multiple choice×2
  • Short answer×1
  • True / False×1
  • 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.