States of Matter & the Particle Model — Drills · Grade 6 Science
Chapter: Matter, Mixtures & Water PropertiesWhat these drills covers
By the end of States of Matter & the Particle Model you should be able to:
- I can describe the arrangement, spacing and motion of particles in each state.
- I can read a melting point and a boiling point as evidence about attraction between particles.
- I can explain why temperature stops rising while a substance is melting.
4 questions, multiple choice and written answer, each with a worked explanation.
Vocabulary used: particle model, evaporation, evidence, system boundary, uncertainty.
Problem 1
- Solid particles are completely motionless.
- particle model: A simplified explanation of matter using tiny moving constituents and their arrangement.
- A gas has no mass because it is invisible.
- A sample with missing measurements has proved those values are zero.
Answer and explanation
particle model: A simplified explanation of matter using tiny moving constituents and their arrangement.
A simplified explanation of matter using tiny moving constituents and their arrangement.
Problem 2
- Solid particles are completely motionless.
- A gas has no mass because it is invisible.
- evaporation: A change from liquid to gas at a surface, possible below boiling.
- Repeating any method makes every causal claim true.
Answer and explanation
evaporation: A change from liquid to gas at a surface, possible below boiling.
A change from liquid to gas at a surface, possible below boiling.
Problem 3
Answer and explanation
No. Surface evaporation occurs below boiling; its rate depends on conditions such as temperature, airflow, and exposed area.
Compare the scientific meaning and reasoning after an independent attempt. A different accurate supported response can be correct; human review is required.
Problem 4
Answer and explanation
The same water remains within the boundary; state and arrangement change, not the amount of matter.
Compare the scientific meaning and reasoning after an independent attempt. A different accurate supported response can be correct; human review is required.