What is the change from liquid water to water vapour called?
- Evaporation
- Condensation
- Freezing
- Melting
Answer and explanation
Evaporation
Evaporation
Subjects
Matter & forces
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Sample exercises
Which material is generally a good conductor of electricity?
- Rubber
- Copper
- Glass
- Dry wood
Answer and explanation
Copper
Copper
Which force pulls a dropped ball towards Earth?
- Friction only
- Gravity
- Sound
- Magnetism
Answer and explanation
Gravity
Gravity
Matter and changes: which term fits this description? A state of matter with a definite shape and volume under ordinary classroom conditions.
- Liquid
- Solid
- Sublimation
- Freezing
Answer and explanation
Solid
Solid: A state of matter with a definite shape and volume under ordinary classroom conditions.
Matter and changes: which term fits this description? A state of matter with a definite volume that takes the shape of its container.
- Solid
- Solvent
- Deposition
- Liquid
Answer and explanation
Liquid
Liquid: A state of matter with a definite volume that takes the shape of its container.
Matter and changes: which term fits this description? A state of matter that expands to fill the available container.
- Solid
- Gas
- Condensation
- Solution
Answer and explanation
Gas
Gas: A state of matter that expands to fill the available container.
Study notes
Matter and changes
20 key concepts, retrieval questions and a learning checkpoint.
Grades 3–7Matter and changes · quick reference
A change of state is physical. Heating does not automatically mean a new substance has formed.
Grades 3–7Materials and everyday changes
Describe hardness, flexibility, transparency and absorbency, rather than simply saying a material is good.
Grades 1–3Materials and everyday changes · revision card
Describe hardness, flexibility, transparency and absorbency, rather than simply saying a material is good.
Grades 1–3Particle models of matter
A particle model explains observations; it is not a literal photograph of individual particles.
Grades 6–9Particle models of matter · revision card
A particle model explains observations; it is not a literal photograph of individual particles.
Grades 6–9Pushes, pulls and simple machines
A force can change motion or shape, depending on other forces and constraints.
Grades 2–5Pushes, pulls and simple machines · revision card
A force can change motion or shape, depending on other forces and constraints.
Grades 2–5Materials and useful properties
Choose a property that matters for a design task.
Grades 2–5Materials and useful properties · Revision sheet
Choose a property that matters for a design task.
Grades 2–5